HP StorageWorks 64 - SAN Director Switch Planning Manual

Storageworks san high availability.
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planning
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hp StorageWorks
SAN high availability
Product Version: FW V05.01.00-24/HAFM SW V07.01.00-09
Third Edition (June 2003)
Part Number: AA-RS2DC-TE
This guide introduces HP Fibre Channel switching products, storage area networks (SANs), and
Fibre Channel technologies. It describes HP StorageWorks directors and edge switches, and
High Availability Fabric Manager (HAFM)
application. It also describes the firmware, backup
and restore features, and the graphical user interface delivered with the directors and edge
HAFM
switches, and
application. Finally, it describes planning for Fibre Channel topologies,
physical planning considerations, and configuration planning tasks to ensure taking advantage
of director and switch features.

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   Summary of Contents for HP StorageWorks 64 - SAN Director Switch

  • Page 1

    planning guide hp StorageWorks SAN high availability Product Version: FW V05.01.00-24/HAFM SW V07.01.00-09 Third Edition (June 2003) Part Number: AA-RS2DC-TE This guide introduces HP Fibre Channel switching products, storage area networks (SANs), and Fibre Channel technologies. It describes HP StorageWorks directors and edge switches, and High Availability Fabric Manager (HAFM) application.

  • Page 2

    ©Copyright 2001-2003. Hewlett-Packard Development Company, L.P. Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

  • Page 3: Table Of Contents

    contents Contents About this Guide........... .9 Overview.

  • Page 4: Table Of Contents

    Contents Product Management ..........37 Product Management .

  • Page 5: Table Of Contents

    Contents Fabric Topologies ............89 Cascaded Fabric .

  • Page 6: Table Of Contents

    Contents Cables and Connectors..........120 Cables .

  • Page 7: Table Of Contents

    Contents Task 8: Plan E-Mail Notification (Optional) ........157 Task 9: Establish Product and HAFM Server Security Measures .

  • Page 8: Table Of Contents

    Contents 24 Private device connectivity ..........64 25 Public loop connectivity.

  • Page 9: About This Guide

    about this guide About this Guide This planning guide provides information to help you plan the acquisition and installation of one or more of the following Hewlett-Packard (HP) products: About this Guide HP StorageWorks Director 2/64. ■ ■ HP StorageWorks Director 2/140. ■...

  • Page 10: Overview, Intended Audience, Related Documentation

    About this Guide Overview This section covers the following topics: ■ Intended Audience ■ Related Documentation Intended Audience This book is intended for use by configuration and installation planners who are experienced with the following: System administration. ■ ■ Customer engineering. Project management.

  • Page 11: Conventions, Document Conventions

    About this Guide Conventions Conventions consist of the following: ■ Document Conventions ■ Text Symbols ■ Equipment Symbols Document Conventions The document conventions included in Table 1 apply in most cases. Table 1: Document Conventions Element Convention Cross-reference links Blue text: Figure 1 Key and field names, menu items, Bold...

  • Page 12: Equipment Symbols

    About this Guide Text Symbols The following symbols may be found in the text of this guide. They have the following meanings. WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or death. Caution: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or data.

  • Page 13: Rack Stability

    About this Guide Any surface or area of the equipment marked with these symbols indicates the presence of a hot surface or hot component. Contact with this surface could result in injury. WARNING: To reduce the risk of personal injury from a hot component, allow the surface to cool before touching.

  • Page 14: Getting Help, Hp Technical Support, Hp Storage Website, Hp Authorized Reseller

    About this Guide Getting Help If you still have a question after reading this guide, contact an HP authorized service provider or access our website: http://www.hp.com. HP Technical Support Telephone numbers for worldwide technical support are listed on the following HP website: http://www.hp.com/support/.

  • Page 15: Introduction To Hp Fibre Channel Products, Product Overview

    Introduction to HP Fibre Channel Products This chapter introduces Hewlett-Packard (HP) Fibre Channel switching products that allow deployment and implementation of a storage area network (SAN) topology in a Fibre Channel Protocol (FCP) or IBM fiber connection (FICON) environments. HP offers several switch alternatives to build a robust and scalable SAN infrastructure that meets the customer’s data center requirements.

  • Page 16

    Introduction to HP Fibre Channel Products ■ Arbitrated loop switches — Fibre Channel arbitrated loop (FC-AL) switches are low port count, low-bandwidth products. HP offers related products that act as loop-switching hubs and fabric-attach switches. These switches provide connectivity between attached FC-AL devices, and between FC-AL devices and switched fabric elements.

  • Page 17

    Introduction to HP Fibre Channel Products HP Ethernet hub Shelf-mount HAFM server (HP Omnibook) Three Edge Switch 2/16s Two Director 2/64s Three Edge Switch 2/32s Figure 1: Rack-mount HP products SAN High Availability Planning Guide...

  • Page 18: Directors

    Introduction to HP Fibre Channel Products Directors Directors provide high-performance, dynamic connections between end devices such as servers, mass storage devices, and peripherals in a Fibre Channel switched network. Directors also support mainframe and open systems interconnection (OSI) computing environments and provide data transmission and flow control between device node ports (N_Ports) as dictated by the Fibre Channel Physical and Signaling Interface (FC-PH 4.3).

  • Page 19: Director Performance

    Introduction to HP Fibre Channel Products Director Performance Directors provide the following general performance features: ■ High bandwidth — Each port provides full-duplex serial data transfer at a rate of 2.125 Gbps. ■ High availability — To ensure an availability of 99.999%, director design provides a redundant configuration of critical components with automatic failure detection and notification.

  • Page 20

    Introduction to HP Fibre Channel Products ■ Multiple topology support — Directors support both point-to-point and multi-switch fabric topologies, and indirectly support arbitrated loop topology. — Point-to-point topology provides a single direct connection between two device N_Ports. This topology supports bidirectional transmission between source and destination ports.

  • Page 21: Director 2/64, Director 2/64 (front View)

    Introduction to HP Fibre Channel Products Director 2/64 The Director 2/64 is a second-generation, enterprise-class switch that provides switched fabric connectivity for to up to 64 Fibre Channel devices. Figure 2 illustrates the front of the director. Each UPM card provides four 2.125 Gbps Fibre Channel port connections through duplex small form factor pluggable (SFP) fiber-optic transceivers.

  • Page 22: Director 2/64 (rear View)

    Introduction to HP Fibre Channel Products Figure 3 illustrates the rear of the director. Redundant fan modules Redundant serial crossbar (SBAR) assemblies Power module assembly with AC power switch Figure 3: Director 2/64 (rear view) The director provides a modular design that enables quick removal and replacement of FRUs.

  • Page 23: Director 2/140, Director 2/140 (front View)

    Introduction to HP Fibre Channel Products Director 2/140 The Director 2/140 is a third-generation, enterprise-class switch that provides switched fabric connectivity for to up to 140 Fibre Channel devices. Figure 4 illustrates the front of the director. Each UPM card provides four 2.125 Gbps Fibre Channel port connections through duplex small form factor pluggable (SFP) fiber-optic transceivers.

  • Page 24: Director 2/140 (rear View)

    Introduction to HP Fibre Channel Products Figure 5 illustrates the rear of the director. Fan modules SBAR assemblies UPM cards (3) AC modules Maintenance port Power supplies Figure 5: Director 2/140 (rear view) The director provides a modular design that enables quick removal and replacement of FRUs.

  • Page 25: Edge Switches, Edge Switch Performance

    Introduction to HP Fibre Channel Products Edge Switches Like directors, edge switches also provide high-performance, dynamic connections between end devices in a Fibre Channel switched network. Edge switches also support mainframe and OSI computing environments. Through non-blocking architecture and limited FRU redundancy, edge switches also offer high availability and high-performance bandwidth.

  • Page 26: Edge Switch 2/16, Edge Switch 2/16 (front View)

    Introduction to HP Fibre Channel Products Edge Switch 2/16 The Edge Switch 2/16 provides 2.125 Gbps fabric connectivity for to up to 16 Fibre Channel devices. Figure 6 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic cable.

  • Page 27: Edge Switch 2/16 (rear View)

    Introduction to HP Fibre Channel Products Figure 7 illustrates the rear of the switch. Cooling fans (6) Power switches on power supplies (2) Power supplies (2) RS-232 maintenance port Figure 7: Edge Switch 2/16 (rear view) SAN High Availability Planning Guide...

  • Page 28: Edge Switch 2/24, Edge Switch 2/24 (front View)

    Introduction to HP Fibre Channel Products Edge Switch 2/24 The Edge Switch 2/24 provides 2.125 Gbps fabric connectivity for to up to 24 Fibre Channel devices. Figure 8 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic cable.

  • Page 29: Edge Switch 2/24 (rear View)

    Introduction to HP Fibre Channel Products Figure 9 illustrates the rear of the switch. Power supplies with internal Maintenance Port cooling fans Figure 9: Edge Switch 2/24 (rear view) SAN High Availability Planning Guide...

  • Page 30: Edge Switch 2/32 (front View)

    Introduction to HP Fibre Channel Products Edge Switch 2/32 The Edge Switch 2/32 provides 2.125 Gbps fabric connectivity for to up to 32 Fibre Channel devices. Figure 10 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic cable.

  • Page 31: Edge Switch 2/32 (rear View)

    Introduction to HP Fibre Channel Products Figure 11 illustrates the rear of the switch. The FRUs on the rear panel include two power supplies and four individual cooling fan FRUs. Cooling fans (4) Power switches on power supplies (2) Power supplies (2) RS-232 maintenance port Figure 11: Edge Switch 2/32 (rear view) SAN High Availability Planning Guide...

  • Page 32: Product Features, Connectivity Features

    Introduction to HP Fibre Channel Products Product Features In addition to the characteristics and performance features described in this chapter, HP-managed directors and switches also provide a variety of: ■ Connectivity features. ■ Security features. ■ Serviceability features. Connectivity Features Directors, switches, and the associated HAFM and Product Manager applications support the following Fibre Channel connectivity features: ■...

  • Page 33: Security Features

    Introduction to HP Fibre Channel Products ■ State change notification — Directors and switches support a state change notification function that allows attached N_Ports to request notification when other N_Ports change operational state. ■ Port binding — Directors and switches support a feature that binds an attached Fibre Channel device to a specified port through the device’s World Wide Name (WWN).

  • Page 34: Serviceability Features

    Introduction to HP Fibre Channel Products Serviceability Features Directors, switches, and the associated HAFM and Product Manager applications support the following serviceability features: ■ LEDs that provide visual indicators of hardware status or malfunctions. LEDs are provided on: — Director and switch FRUs. —...

  • Page 35

    Introduction to HP Fibre Channel Products ■ Redundant FRUs (logic cards, port transceivers, power supplies, and cooling fans) that can be removed or replaced without disrupting director, switch, or Fibre Channel link operation. ■ A modular design that enables quick removal and replacement of FRUs without the use of special tools or equipment.

  • Page 36

    Introduction to HP Fibre Channel Products SAN High Availability Planning Guide...

  • Page 37: Product Management

    Product Management This chapter describes management of Hewlett-Packard (HP) directors and edge switches. The chapter specifically describes: Out-of-band and inband product management. ■ ■ The High Availability Fabric Manager (HAFM) server, HAFM server specifications, Ethernet hub, and optional workstation support. ■...

  • Page 38

    Product Management Product Management Out-of-band (non-Fibre Channel) management access to HP products is provided through two Ethernet LAN connections to director control processor (CTP) cards or a single connection to a director front panel. The following out-of-band management access methods are provided: ■...

  • Page 39: Out-of-band Product Management

    Product Management Figure 12 illustrates an example of out-of-band product management. In the figure, the managed product is a Director 2/64. The customer intranet could be an HP Ethernet hub providing device connectivity. Customer Intranet Customer Intranet (10/100 Mbps) (10/100 Mbps) Stora geWo rks SAN Internet...

  • Page 40: Inband Product Management

    Product Management ■ Management through the product’s Fibre Connection (FICON) management server (FMS) that communicates with the IBM System Automation for OS/390 (SA OS/390) operating system. The operating system resides on an IBM System/390 or zSeries 900 Parallel Enterprise server attached to a director or switch port, and communicates through a FICON channel.

  • Page 41: Hafm Server Description, Hafm Server

    Product Management HAFM Server Description The HAFM server is a notebook personal computer (PC) that provides a central point of control for up to 48 LAN-connected directors or switches. However, note that the maximum number of switches per storage area network (SAN) fabric is different.

  • Page 42

    Product Management HAFM Note: The HAFM server and application provide a GUI to monitor and manage multiple HP products, and are a dedicated hardware and software solution that should HAFM not be used for other tasks. HP tests the application installed on the HAFM server, but does not compatibility test other third-party software.

  • Page 43: Ethernet Hub, Remote User Workstations, Hp Ethernet Hub

    Product Management Ethernet Hub The HAFM server and managed directors and switches can be connected through a 10/100 Base-T Ethernet hub. Figure 15 illustrates the 12-port hub. The hub can be ordered from HP and is installed at the top front of the equipment rack. ProC urve 10/1 00 Hub 12 HP J3294 A...

  • Page 44: Product Firmware

    Product Management ■ 128 MB or greater RAM. ■ Video card supporting 256 colors at 800 x 600 pixel resolution. ■ Ethernet network adapter. ■ Java-enabled Internet browser, such as Microsoft Internet Explorer (Version 4.0 or later) or Netscape Navigator (Version 4.0 or later). Product Firmware Director or edge switch firmware provides services that manage and maintain Fibre Channel connections between ports.

  • Page 45: Backup And Restore Features

    Product Management ■ Network Services — This function provides TCP/IP transport layers to access management service subsystems from attached management clients. These clients include the HAFM server or an SNMP management station. ■ Application Services — This function supports all software subsystems for system initialization, logging, tracing, debugging, and communicating with the RS-232 maintenance port.

  • Page 46

    Product Management ■ HafmData directory — Critical information (for all managed products) stored in the HafmData directory is backed up or restored using a backup application. The application is configured to automatically back up the contents of the data directory to a removable disk when the HAFM server is rebooted or when directory contents change.

  • Page 47: Product Software, Management Services Application

    Product Management Product Software This section describes the Management Services and HAFM applications. The HAFM application includes the Product Manager application for each product (Director 2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32). The applications provide a GUI and management services for monitoring and controlling directors and switches.

  • Page 48: Graphical User Interface, Hafm Application

    Product Management The HAFM server also provides hypertext transfer protocol (HTTP) server functionality. Use of this protocol with a standard Web server allows the download of client HAFM and Product Manager applications from the HAFM server to remote workstations. The server is configured to limit the maximum number of concurrent connections to eight.

  • Page 49: Products View

    Product Management Products View When the HAFM application opens, the Products tab opens by default and the Products View (Figure 16) displays. All managed products display as rectangular icons in the view window. Figure 16: Products View A label below each icon identifies the managed product by its configured name or network (IP) address.

  • Page 50

    Product Management ■ Alert symbol — A large colored alert symbol behind each product illustration indicates the operational status of the product as follows: — A green circle indicates the product is fully operational. — A yellow triangle indicates a redundant component failure or degraded operational status.

  • Page 51: Fabrics View

    Product Management Fabrics View Select the Fabrics tab at the Products View to open the Fabrics View (Figure 17). When the Fabrics View opens, the Topology tab displays by default. The left panel displays an expandable Fabrics tree that lists managed fabrics, director, and switch elements in each fabric, and nodes (Fibre Channel devices) connected to fabric elements.

  • Page 52

    Product Management By double-clicking (selecting) a fabric icon or right-clicking a fabric icon and selecting from pop-up menu options, a user opens the Product Manager application for the element. Refer to “Product Manager Application” on page 53 for additional information. Select the Zone Set tab at the Fabrics View to display the active zone set for the selected fabric (Figure 18...

  • Page 53: Product Manager Application, Hardware View

    Product Management Product Manager Application The Product Manager application works in conjunction with the HAFM application, and is a Java-based GUI for managing and monitoring multiple directors or switches. The application operates locally on the HAFM server, or through a network connection from a remote PC or workstation. At the Products View (Figure 16 on page 49), double-click (select) a product icon...

  • Page 54: Embedded Web Server Interface

    Product Management The graphical representation of the product emulates the hardware configuration and operational status of the corresponding real product. For example, if a director or switch is fully redundant and fully populated, this configuration is reflected in the Hardware View. Colored symbols display on the graphical FRUs to represent failed or degraded status.

  • Page 55: View Panel (embedded Web Server Interface)

    Product Management ■ Monitor port status, port statistics, and the active zone set, and display the event log and node list. ■ Perform product firmware upgrades and port diagnostics, reset ports, enable port beaconing, and set the product online or offline. The EWS interface can be opened from a standard Web browser running Netscape Navigator 4.6 or higher or Microsoft Internet Explorer 4.0 or higher.

  • Page 56: Command Line Interface

    Product Management The task selection tabs are a function of the menu selected, as follows: ■ View — At the View panel, the Director or Switch (default), Port Properties, FRU Properties, Unit Properties, Operating Parameters, and Fabric task selection tabs display. ■...

  • Page 57: Planning Considerations For Fibre Channel Topologies

    Planning Considerations for Fibre Channel Topologies A storage area network (SAN) is typically defined as a network of shared storage resources that can be allocated throughout a heterogeneous environment. This chapter describes planning considerations for incorporating Hewlett-Packard (HP) switching products into Fibre Channel SAN topologies. This chapter specifically describes: Fibre Channel topologies, including point-to-point, arbitrated loop, and ■...

  • Page 58: Fibre Channel Topologies

    Planning Considerations for Fibre Channel Topologies Fibre Channel Topologies The Director 2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32 support point-to-point and multi-switch fabric topologies, and indirectly support arbitrated loop topology. A combination of these topologies (hybrid topology) is also supported.

  • Page 59: Planning For Point-to-point Connectivity

    Planning Considerations for Fibre Channel Topologies ■ Multiswitch fabric — This topology provides the ability to connect directors and edge switches through expansion ports (E_Ports) or interswitch links (ISLs) to form a Fibre Channel fabric. Director or switch elements receive data from a device;...

  • Page 60: Characteristics Of Arbitrated Loop Operation, Shared Mode Versus Switched Mode

    Planning Considerations for Fibre Channel Topologies Characteristics of Arbitrated Loop Operation When implementing Fibre Channel arbitrated loop topology, consideration must be given to switch operating mode, device connectivity, and loop configuration. This section describes the characteristics of arbitrated loop operation, including: ■...

  • Page 61: Shared Mode Operation

    Planning Considerations for Fibre Channel Topologies Figure 21: Shared mode operation ■ Switched mode — When set to switched mode or by default, the switch bypasses full loop arbitration and enables frame transmission through logical connected device pairs. Connections can be established between H_Port pairs, or between an H_Port and fabric loop port (FL_Port).

  • Page 62: Public Versus Private Devices, Switched Mode Operation

    Planning Considerations for Fibre Channel Topologies Figure 22: Switched mode operation Public Versus Private Devices Arbitrated loop switches support connection of public and private arbitrated loop devices as follows: ■ Public device — A loop device that can transmit a fabric login (FLOGI) command to the switch, receive acknowledgement from the switch’s login server, register with the switch’s name server, and communicate with fabric-attached devices is a public device.

  • Page 63: Public Device Connectivity

    Planning Considerations for Fibre Channel Topologies Figure 23: Public device connectivity Public devices support normal fabric operational requirements, such as fabric busy and reject conditions, frame multiplexing, and frame delivery order. ■ Private device — A loop device that cannot transmit an FLOGI command to the switch nor communicate with fabric-attached devices is a private device.

  • Page 64: Private Device Connectivity

    Planning Considerations for Fibre Channel Topologies Figure 24: Private device connectivity Private devices only communicate with other devices on the same arbitrated loop, and interconnected public and private devices can communicate with each other. Such intermixed devices establish operating parameters and loop topology configuration through a port login (PLOGI) command exchange, rather than through the switch’s name server.

  • Page 65: Public Versus Private Loops, Public Loop Connectivity

    Planning Considerations for Fibre Channel Topologies Public Versus Private Loops Arbitrated loop switches support operation of public and private loops as follows: ■ Public loop — A public loop is connected to a switched fabric (through the switch B_Port) and the switch has an active embedded FL_Port that is user transparent.

  • Page 66: Planning For Private Arbitrated Loop Connectivity, Private Loop Connectivity

    Planning Considerations for Fibre Channel Topologies B_Port Loop Switch Embedded FL_Port H_Ports Figure 26: Private loop connectivity Planning for Private Arbitrated Loop Connectivity Private arbitrated loop topology supports the clustering of isolated servers and storage subsystems into workgroup or departmental SANs. This topology is well suited to small and mid-sized configurations where modest connectivity levels and high data transmission speeds are required.

  • Page 67: Shared Mode Operation And Logical Equivalent, Shared Mode Operation

    Planning Considerations for Fibre Channel Topologies Shared Mode Operation When set to shared mode, a loop switch implements standard Fibre Channel arbitrated loop topology, and distributes the frame routing function through each loop port. Shared mode operation and its simplified logical equivalent are illustrated in Figure Logical Equivalent...

  • Page 68: Device Private Arbitrated Loop

    Planning Considerations for Fibre Channel Topologies Hubs are cascaded through H_Port-to-H_Port connections (one port per switch or hub). Server S communicates with device D through a loop that includes H_Ports on all three hubs and NL_Ports on the remaining 18 devices. Loop Switch Loop Switch H_Ports...

  • Page 69

    Planning Considerations for Fibre Channel Topologies ■ Number of loop tenancies — Each cycle of device arbitration, loop opening, frame transmission, frame reception, and loop closing is called a loop tenancy. A Fibre Channel operation, such as a small computer system interface (SCSI) write command, may require several tenancies to complete.

  • Page 70: Switched Mode Operation, Switched Mode Operation And Logical Equivalent

    Planning Considerations for Fibre Channel Topologies Switched Mode Operation When set to switched mode (default setting), a loop switch enables frame transmission through multiple point-to-point connected pairs. Switched mode operation and its simplified logical equivalent are illustrated in Figure Part (A) of Figure 29 shows server S connected to device D...

  • Page 71: Switched Mode Operation With Eight Independent Looplets

    Planning Considerations for Fibre Channel Topologies Loop Switch H_Ports H_Ports Figure 30: Switched mode operation with eight independent looplets When communication within two or more looplets ceases, a device attached to one looplet can be switched to communicate with a device attached to another looplet.

  • Page 72

    Planning Considerations for Fibre Channel Topologies ■ Consider the data traffic capacity of the department or workgroup (normal and peak load) as part of the switch planning and installation process. Such capacity planning: — Ensures loop traffic is distributed and balanced across servers and storage devices.

  • Page 73: Planning For Fabric-attached Loop Connectivity, Connecting A San To A Switched Fabric

    Planning Considerations for Fibre Channel Topologies Planning for Fabric-Attached Loop Connectivity Public arbitrated loop topology supports the connection of workgroup or departmental FC-AL devices to a switched fabric through a loop switch B_Port. This topology is well suited for: ■ Providing connectivity between a workgroup or departmental SAN and a switched fabric, thus implementing connectivity of FC-AL devices to fabric devices at the core of the enterprise.

  • Page 74: Arbitrated Loop To Switched Fabric Connectivity

    Planning Considerations for Fibre Channel Topologies The switch B_Port provides a single 1.0625 Gbps ISL to an E_Port on a director or edge switch. Direct ISL connectivity between loop switches (with or without a redundant B_Port connection to a director or edge switch) is generally not supported.

  • Page 75: Isl Bandwidth Limitation

    Planning Considerations for Fibre Channel Topologies ■ Although the B_Port connection (ISL) between the director and switch is a 1.0625 Gbps serial connection, burst transmissions from multiple FC-AL devices are multiplexed and buffered (the link BB_Credit value is eight), and may coexist in the link.

  • Page 76: Server Consolidation, Server Consolidation

    Planning Considerations for Fibre Channel Topologies Server Consolidation Providing fabric connectivity for multiple low-bandwidth servers (Windows NT or UNIX-based) by attaching them individually to an expensive Fibre Channel director is not a cost-effective solution. A practical solution is to consolidate the servers on an inexpensive loop switch, then connect the switch to a single director or edge switch E_Port.

  • Page 77: Tape Device Consolidation, Tape Drive Consolidation

    Planning Considerations for Fibre Channel Topologies Tape Device Consolidation Providing fabric connectivity for multiple FC-AL tape drives by attaching them individually to a Fibre Channel director is likewise not a cost-effective solution. A practical solution is to consolidate the tape drives on an inexpensive loop switch, then connect the switch to a single director or edge switch E_Port.

  • Page 78: Planning For Multi-switch Fabric Support, Example Multi-switch Fabric

    Planning Considerations for Fibre Channel Topologies Planning for Multi-Switch Fabric Support A Fibre Channel topology that consists of one or more interconnected director or switch elements is called a fabric. The product operational software provides the ability to interconnect directors and switches (through E_Port connections) to form a multi-switch fabric.

  • Page 79: Fabric Topology Limits

    Planning Considerations for Fibre Channel Topologies Fabric elements cooperate to receive data from the N_Port of an attached device, route the data through the proper director or switch fabric ports (F_Ports), and deliver the data to the N_Port of a destination device. The data transmission path through the fabric is typically determined by the fabric elements and is transparent to the user.

  • Page 80: Factors To Consider When Implementing A Fabric Topology

    Planning Considerations for Fibre Channel Topologies ■ Hop count — The Fibre Channel theoretical limit of ISL connections traversed (hop count) in a single path through the fabric is seven. The maximum hop count supported by a fabric is based on current design rules. For information, refer to http://h18000.www1.hp.com/products/storageworks/san/documentation.html or contact your local HP sales representative.

  • Page 81

    Planning Considerations for Fibre Channel Topologies ■ Distance requirements — The distance between elements in a fabric affects the type of optical port transceiver and cabling required. In addition, variables such as the number of connections, grade of fiber-optic cable, device restrictions, application restrictions, buffer-to-buffer credit limits, and performance requirements can affect distance requirements.

  • Page 82: Isl Transfer Rate Versus Fabric Port Availability (two-director Fabric)

    Planning Considerations for Fibre Channel Topologies Table 2: ISL Transfer Rate versus Fabric Port Availability (Two-Director Fabric) Number ISL Data Transfer ISL Data Transfer Rate Available of ISLs Rate (at 1.0625 Gbps) (at 2.125 Gbps) Fabric Ports 1.0625 Gbps 2.1250 Gbps 2.1250 Gbps 4.2500 Gbps 3.1875 Gbps...

  • Page 83

    Planning Considerations for Fibre Channel Topologies Special consideration must also be given to applications with high data transfer rates or devices that participate in frequent or critical data transfer operations. For example, in Figure 35 on page 78, suppose device D is a server and device D is a storage unit and both devices participate in a critical...

  • Page 84

    Planning Considerations for Fibre Channel Topologies Note that at least one director or switch in a multi-switch fabric needs to be set as Principal or Default. If all the fabric elements are set to Never Principal, all ISLs will segment. If all but one element are set to Never Principal and the element that was Principal goes offline, then all of the other ISLs will segment.

  • Page 85

    Planning Considerations for Fibre Channel Topologies When assigning preferred domain IDs in an open fabric with directors and switches supplied by multiple OEMs, be aware of the following: — For directors and switches, the firmware adds a base offset of 96 (hexadecimal 60) to the numerically assigned preferred domain ID.

  • Page 86

    Planning Considerations for Fibre Channel Topologies When multiple minimum-hop paths (ISLs) between fabric elements are detected, firmware balances the data transfer load and assigns ISLs as follows: — The director or switch assigns an equal number of device entry ports (F_Ports) to each E_Port connected to an ISL.

  • Page 87

    Planning Considerations for Fibre Channel Topologies — Incompatible zoning configurations — Zoning configurations for the two fabric elements are not compatible. For an explanation, refer to “Configuring Zones” on page 133. — Build fabric protocol error — A protocol error is detected during the process of forming the fabric.

  • Page 88

    Planning Considerations for Fibre Channel Topologies ■ Zoning configurations for joined fabrics — In a multi-switch fabric, zoning is configured on a fabric-wide basis, and any change to the active zone set is applied to all directors and switches. To ensure zoning is consistent across a fabric, the following rules are enforced when two fabrics (zoned or unzoned) join through an ISL.

  • Page 89: Fabric Topologies, Cascaded Fabric

    Planning Considerations for Fibre Channel Topologies Fabric Topologies Several topologies exist from which to build a Fibre Channel fabric infrastructure. This section describes the most effective fabric topologies, and provides guidance on when to deploy each topology. The topologies are effective for a wide variety of applications, are extensively tested by HP, and are deployed in several customer environments.

  • Page 90: Cascaded Fabric

    Planning Considerations for Fibre Channel Topologies Interswitch Link Fabric Connection Figure 36: Cascaded fabric One design variation is to use more than one ISL between fabric elements. This eliminates ISLs as a single point of failure and greatly increases the fabric design reliability.

  • Page 91: Ring Fabric, Ring Fabric

    Planning Considerations for Fibre Channel Topologies Ring Fabric A ring fabric consists of a continuous string of directors or switches connected by one or more ISLs. Each fabric element is connected to the next fabric element (like a cascaded fabric, but with the end-point fabric elements connected). Figure 37 illustrates a ring fabric topology.

  • Page 92: Mesh Fabric, Full Mesh Fabric

    Planning Considerations for Fibre Channel Topologies Mesh Fabric There are two types of mesh fabrics: full mesh and modified (or partial) mesh. In a full-mesh topology, every director or switch is directly connected to all directors and switches in the fabric. The maximum hop count between fabric-attached devices is one hop.

  • Page 93

    Planning Considerations for Fibre Channel Topologies When using low port-count fabric elements, mesh fabrics are best used when the fabric is not expected to grow beyond four or five switches. The cost of ISLs becomes prohibitive for larger mesh fabrics. In addition, full-mesh fabrics do not scale easily because the addition of a switch requires that at least one additional ISL be added from every existing switch in the fabric.

  • Page 94: Core-to-edge Fabric, By-14 Core-to-edge Fabric

    Planning Considerations for Fibre Channel Topologies Core-to-Edge Fabric A core-to-edge fabric consists of one or more Fibre Channel directors or switches acting as core elements that are dedicated to connecting other directors and switches (edge elements) in the fabric. Core directors act as high-bandwidth routers with connectivity to edge fabric elements.

  • Page 95: By-12 Core-to-edge Fabric

    Planning Considerations for Fibre Channel Topologies Subject to large fabric design constraints, core-to-edge fabrics are easy to scale through the addition of core elements. Figure 40 illustrates a core-to-edge fabric topology with four core directors and twelve edge directors and switches (4-by-12 topology).

  • Page 96: Fabric Island

    Planning Considerations for Fibre Channel Topologies The simplest core-to edge fabric has two or more core switching elements that may or may not be connected (simple or complex). In a simple core topology, as shown in Figure 39 on page 94, core switches are not connected. In a complex core topology, as shown in Figure 40 on page 95, core switches are connected.

  • Page 97: Planning A Fibre Channel Fabric Topology, Fabric Performance

    Planning Considerations for Fibre Channel Topologies Planning a Fibre Channel Fabric Topology To be effective, the fabric topology design must: ■ Solve the customer’s business problem and provide the required level of performance. ■ Meet the customer’s requirements for high availability. ■...

  • Page 98: I/o Requirements, Application I/o Profiles

    Planning Considerations for Fibre Channel Topologies I/O Requirements HP directors and switches are designed with non-blocking architecture; therefore, any two switch ports can communicate at the full Fibre Channel bandwidth of 2.125 Gbps without impact to other switch ports. Because most SAN-attached devices are not capable of generating I/O traffic at the full bandwidth, there is little potential for congestion between two devices attached through a single director or switch.

  • Page 99: Isl Oversubscription, Isl Oversubscription

    Planning Considerations for Fibre Channel Topologies Prior to fabric design, application I/O profiles should be estimated or established that classify the application bandwidth requirements. Bandwidth consumption is classified as light, medium, or heavy. These classifications must be considered when planning ISL and device connectivity. For information about application I/O (in Gbps) and fabric performance problems due to ISL connectivity, refer to “ISL Oversubscription.”...

  • Page 100: Device Locality

    Planning Considerations for Fibre Channel Topologies Depending on fabric performance requirements and cost, there are several options to solve ISL oversubscription problems, including: ■ Employ device locality — NT server 1 and its associated storage device can be connected through one director. NT server 2 and its associated storage device can be connected through the other director.

  • Page 101: Device Fan-out Ratio, Device Locality

    Planning Considerations for Fibre Channel Topologies High Device Locality Low Device Locality Low Traffic High Traffic Figure 42: Device locality Although it is possible to design a SAN that delivers sufficient ISL bandwidth in a zero-locality environment, it is preferable to design local, one-to-one connectivity for heavy-bandwidth applications such as video server, seismic data processing, or medical 3D imaging.

  • Page 102: Performance Tuning, Device Fan-out Ratio

    Planning Considerations for Fibre Channel Topologies Device Fan-Out Ratio: 10 to 1 1,000 IOPS 1,000 IOPS 1,000 IOPS 1,000 IOPS 10,000 IOPS 1,000 IOPS 1,000 IOPS 1,000 IOPS 1,000 IOPS 1,000 IOPS Interswitch Link Fabric Connection 1,000 IOPS Figure 43: Device fan-out ratio Performance Tuning When designing or tuning a fabric for performance, it is critical to understand application I/O characteristics so that:...

  • Page 103: Fabric Performance Tuning

    Planning Considerations for Fibre Channel Topologies Figure 44 illustrates performance tuning for a simple fabric using appropriate ISL connectivity, device locality, and fan-out regions for device connectivity. Tier 2 Storage 11 to 1 Fan-Out Region 6 to 1 Fan-Out Region 3 to 1 Fan-Out Region 11,000 IOPS 9,000 IOPS...

  • Page 104: Fabric Availability

    Planning Considerations for Fibre Channel Topologies ■ 11 to 1 fan-out region — Eleven NT servers with I/O capabilities of 10 MBps and 1,000 IOPS are fabric-attached through a 32-port edge switch. The primary applications are e-mail and online transaction processing (OLTP). Because bandwidth use is light and noncritical, the servers are connected to the core director with a single ISL that is intentionally oversubscribed (1.1 Gbps plus Class F traffic).

  • Page 105: Redundant Fabrics

    Planning Considerations for Fibre Channel Topologies Fibre Channel fabrics are classified by four levels of resiliency and redundancy. From least available to most available, the classification levels are: ■ Nonresilient single fabric — Directors and switches are connected to form a single fabric that contains at least one single point of failure (fabric element or ISL).

  • Page 106

    Planning Considerations for Fibre Channel Topologies Figure 45 illustrates simple redundant fabrics. Fabric “A” and fabric “B” are symmetrical, each containing one core director and four edge switches. All servers and storage devices are connected to both fabrics. Fabric Fabric “A”...

  • Page 107: Fabric Scalability, Obtaining Professional Services, Fabric Topology Design Considerations, Large Fabric Design Implications

    Planning Considerations for Fibre Channel Topologies Fabric Scalability A scalable fabric allows for nondisruptive addition of fabric elements (directors and switches) or ISLs to increase the size or performance of the fabric. Scalability also relates to investment protection. If a core edge switch is replaced with a newer or higher port count switch, it is often valuable to use the existing switch elsewhere in the fabric (at the edge).

  • Page 108: Fcp And Ficon In A Single Fabric

    Planning Considerations for Fibre Channel Topologies ■ Employ a routing protocol to establish the shortest path through the fabric and program route tables for each fabric element. ■ Exchange the active zone set to ensure uniform zoning is enforced between all fabric elements.

  • Page 109: Director Or Switch Management

    Planning Considerations for Fibre Channel Topologies In addition to OEM limitations not discussed in this publication, the considerations that need to be evaluated when intermixing FCP and FICON protocols are: ■ Director or switch management. ■ Port numbering versus port addressing. ■...

  • Page 110: Port Numbering Versus Port Addressing, Director 2/64 Port Numbers And Logical Port Addresses

    Planning Considerations for Fibre Channel Topologies Port Numbering Versus Port Addressing Consideration must be given to the implications of port numbering for the FCP protocol versus logical port addressing for the FICON protocol. FCP configuration attributes are implemented through zoning. Zones are configured through the associated Product Manager application by authorizing or restricting access to name server information associated with device N_Ports that attach to director or switch F_Ports.

  • Page 111: Management Limitations

    Planning Considerations for Fibre Channel Topologies Although Figure 46 depicts a UPM card map only for the Director 2/64, physical port numbers and logical port addresses can be extrapolated for the Director 2/140 (140 ports), Edge Switch 2/16 (16 ports), Edge Switch 2/24 (24 ports), and Edge Switch 2/32 (32 ports).

  • Page 112: Protocol Intermix Recommendations

    Planning Considerations for Fibre Channel Topologies ■ When employing inband (Fibre Channel) director or switch management, the open-systems management server (OSMS) is associated with the FCP protocol, and the FICON management server (FMS) is associated with the FICON protocol. Management server differences tend to complicate security and control issues.

  • Page 113

    Planning Considerations for Fibre Channel Topologies ■ Intermix operation in Open Systems management style — When the director or switch is set to Open Systems management style, a traditional Fibre Channel fabric consisting of multiple domains (fabric elements) is supported. Inband management through the OSMS is also supported. The key concern in this environment is to avoid disrupting installed FCP devices when connecting FICON devices to a director or switch, and modifying configurations to facilitate FICON communication.

  • Page 114: Multiple Data Transmission Speeds In A Single Fabric

    Planning Considerations for Fibre Channel Topologies Multiple Data Transmission Speeds in a Single Fabric The Director 2/64, Edge Switch 2/16, and Edge Switch 2/32 support auto-sensing of 1.0625 and 2.125 Gbps device connections. The introduction of a higher data transmission speed to the SAN design provides several benefits and alternatives: ■...

  • Page 115: Physical Planning Considerations

    Physical Planning Considerations This chapter describes the physical planning considerations for incorporating Hewlett-Packard (HP) Director 2/64s, Edge Switch 2/16s, and Edge Switch 2/32s into storage area networks (SANs) and Fibre Channel fabric topologies. The chapter provides planning considerations and recommendations for: ■...

  • Page 116: Port Connectivity And Fiber-optic Cabling, Port Requirements

    Physical Planning Considerations Port Connectivity and Fiber-Optic Cabling This section provides planning recommendations for director and switch port connectivity and fiber-optic cabling. Recommendations are provided for: ■ Port requirements (number and type of ports). ■ Small form factor pluggable (SFP) optical transceivers. ■...

  • Page 117: Optical Transceivers

    Physical Planning Considerations ■ Director 2/140 — The director is configured from a minimum of 16 universal port module (UPM) cards (64 ports total), to a maximum of 35 UPM cards (140 ports total). UPM cards provide four 2.125 Gbps port connections, and can be configured with shortwave transceivers, longwave transceivers, and extended longwave laser transceivers, or a combination of all three.

  • Page 118: Data Transmission Distance, Cost Effectiveness, Device Or Cable Restrictions

    Physical Planning Considerations Consider the following when determining the number and type of each transceiver to use: ■ Distance between a director or switch and the attached Fibre Channel device, or between fabric elements communicating through an ISL. ■ Cost effectiveness. ■...

  • Page 119: Extended-distance Ports, High-availability Considerations

    Physical Planning Considerations Extended-Distance Ports Through longwave laser transceivers and repeaters or dense wavelength division multiplexing (DWDM) equipment, directors and edge switches support Fibre Channel data transmission distances of up to 100 km at 1 Gbps, or 50 km at 2 Gbps.

  • Page 120: Cables And Connectors, Cables

    Physical Planning Considerations Cables and Connectors This section provides Fibre Channel cable and connector planning information as follows: ■ Cables for all directors and switches. ■ Optical connectors for Director 2/64, Director 2/140, Edge Switch 2/16, Switch 2/24, and Edge Switch 2/32. Cables Fiber-optic jumper cables are required to connect director and switch ports to servers, devices, distribution panels, or other elements in a multi-switch fabric.

  • Page 121: Director And Switch Connectors, Routing Fiber-optic Cables, Sfp Transceiver And Lc Duplex Connector

    Physical Planning Considerations Director and Switch Connectors Multimode or single-mode cables attach to Director 2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32 ports with SFP optical transceivers with LC duplex connectors. Figure 47 illustrates an SFP transceiver and LC duplex connector.

  • Page 122: Hafm Server, Lan, And Remote Access Support, Hafm Server

    Physical Planning Considerations The need for additional fiber-optic cabling could grow rapidly. More cables may be required for connections to additional servers or storage devices, or for connections to additional fabric elements as a multi-switch fabric is developed. The director or switch may need to be moved for more efficient connection to other units, but still maintain its original connections.

  • Page 123: Hafm Server Connectivity

    Physical Planning Considerations HAFM Server Connectivity The HAFM server provides an auto-detecting 10/100 Base-T Ethernet interface that connects to a hub. Each director CTP card or switch front panel also provides an auto-detecting 10/100 Base-T Ethernet interface that connects to a hub. A 12-port hub can be ordered from HP and installed at the top front of the equipment rack.

  • Page 124: Connectivity Planning Considerations, Remote User Workstations

    Physical Planning Considerations Connectivity Planning Considerations Directors, switches, and the HAFM server can be delivered in an HP-supplied equipment rack in accordance with customer specifications. Consider the following Ethernet connectivity issues when: ■ Installing additional rack-mount products — When installing an additional director or switch, the length of Ethernet cable required to provide LAN connectivity is a function of rack position (top, bottom, or adjacent to the slide-out drawer).

  • Page 125

    Physical Planning Considerations The LAN interface can be: ■ Part of the customer’s public 10/100 Mbps LAN segment that provides access to managed directors and switches. This product-to-HAFM server Ethernet connection is part of the equipment rack installation and is required. Connection of remote workstations through the hub is optional.

  • Page 126: Typical Network Configuration (one Ethernet Connection)

    Physical Planning Considerations Two Director 2/64s HAFM server (laptop or rack mount) HP Ethernet hub Remote user workstation Figure 48: Typical network configuration (one Ethernet connection) ■ Part of a second HAFM server interface that connects to the customer’s private intranet and allows operation of the HAFM and Product Manager applications from remote user PCs or workstations.

  • Page 127: Typical Network Configuration (two Ethernet Connections)

    Physical Planning Considerations Figure 49: Typical network configuration (two Ethernet connections) SAN High Availability Planning Guide...

  • Page 128: Snmp Management Workstations, Web Browser Access

    Physical Planning Considerations SNMP Management Workstations An SNMP agent that runs on the HAFM server can be configured through the HAFM application. This agent implements Version 3.1 of the Fibre Alliance management information base (MIB). The agent can be configured to send SNMP trap messages to up to 12 recipients.

  • Page 129: Inband Management Access (optional)

    Physical Planning Considerations Inband Management Access (Optional) Inband management console access (through a Fibre Channel port) is provided by enabling user-specified features that allow Open Systems or FICON host control of a director or switch. The features are mutually exclusive; only one can be installed at a time.

  • Page 130

    Physical Planning Considerations When the FICON management server (FMS) feature key is enabled at the Product Manager application, host control and management of the director or switch is provided through an IBM server attached to a product port. The server communicates with the product through a FICON channel.

  • Page 131: Security Provisions, Password Protection, Types Of User Rights

    Physical Planning Considerations Security Provisions Security provisions are available to restrict unauthorized access to a director, switch, or attached Fibre Channel devices. Access to the director or switch (through the HAFM application, Product Manager application, and Web server interface) is restricted by implementing password protection. Access to attached computing resources (including applications and data) is restricted by implementing name server zoning.

  • Page 132: Name Server Zoning, Product Zoning

    Physical Planning Considerations The system administrator can also use the HAFM application to assign remote workstation access to directors and switches. Remote sessions can be allowed for anyone on a customer intranet, disallowed completely, or restricted to specific workstations. Remote users must log into the HAFM application with a user name and password, just as when logging in to the local HAFM server.

  • Page 133: Benefits Of Zoning, Configuring Zones

    Physical Planning Considerations Benefits of Zoning System administrators create zones to increase network security measures, differentiate between operating systems, and prevent data loss or corruption by controlling access between devices (such as servers and data storage units), or between separate user groups (such as engineering or human resources). Zoning allows an administrator to establish: ■...

  • Page 134

    Physical Planning Considerations ■ The domain identification (ID) and physical port number of the director or switch port to which the device is attached. Caution: If zoning is implemented by port number, a change to the director or switch fiber-optic cable configuration disrupts zone operation and may incorrectly include or exclude a device from a zone.

  • Page 135: Joining Zoned Fabrics

    Physical Planning Considerations ■ Default zone — The default zone consists of all devices not configured as members of a zone in the active zone set. If there is no active zone set, all devices attached to the fabric are in the default zone. For the default zone: —...

  • Page 136: Factors To Consider When Implementing Zoning, Server And Storage-level Access Control

    Physical Planning Considerations Factors to Consider When Implementing Zoning Consider the following factors when planning to implement zoning for one or more directors or switches in the enterprise. In particular, consider the implications of zoning within a multi-switch fabric. ■ Reasons for zone implementation —...

  • Page 137: Obtaining Professional Services

    Physical Planning Considerations For persistent binding: ■ Each server HBA is explicitly bound to a storage volume or LUN, and access is explicitly authorized (access is blocked by default). ■ The process is compatible with OSI standards. The following are transparently supported: —...

  • Page 138: Optional Features

    Physical Planning Considerations Optional Features HP offers several operating features that are available for the switch as customer-specified options. Available features include: ■ Open Systems Management Server or FICON Management Server — Inband director or switch management is provided through purchase of the OSMS or FMS feature.

  • Page 139: Inband Management Console Access, Open Systems Management Server, Ficon Management Server

    Physical Planning Considerations Inband Management Console Access Inband management console access (through a Fibre Channel port) is provided by enabling user-specified features that allow Open Systems (OSMS) or FICON (FMS) host control of a director or switch. The features are mutually exclusive; only one can be installed at a time.

  • Page 140: Flexport Technology, Santegrity Binding

    Physical Planning Considerations ■ The minimum OS/390 level for a director or switch without the control unit port (CUP) feature is Version 2.6, plus service listed in PSP bucket upgrade 2032, device subset 2032OS390G5+. The minimum OS/390 level for a director or switch with the CUP feature is Version 2.1, plus service listed in the preceding PSP bucket for that function.

  • Page 141: Enterprise Fabric Mode

    Physical Planning Considerations ■ Switch binding — Using the switch binding feature, an administrator allows only specified devices and fabric elements to connect to specified director or fabric switch ports. This provides security in environments that include a large number of devices by ensuring that only the intended set of devices attaches to a director or switch.

  • Page 142: Santegrity Binding Planning Considerations, Open Trunking, Open Trunking Configuration

    Physical Planning Considerations SANtegrity Binding Planning Considerations Fabric and switch binding enhance data security by controlling and monitoring director, fabric switch, and device connectivity. The name server zoning feature also provides data security by partitioning devices into restricted-access zones. Use of the SANtegrity Binding and zoning features in conjunction with each other must be carefully planned and coordinated.

  • Page 143

    Physical Planning Considerations The figure illustrates two Director 2/64 directors connected by two ISLs. Three servers use the ISLs to communicate with two storage devices. Without trunking, servers 1 through 3 route Fibre Channel traffic to director B without regard to any data rates.

  • Page 144

    Physical Planning Considerations SAN High Availability Planning Guide...

  • Page 145: Configuration Planning Tasks

    Configuration Planning Tasks This chapter describes configuration planning tasks to be performed before installing the High Availability Fabric Manager (HAFM) server and one or more Director 2/64s, Director 2/140s, Edge Switch 2/16s, Edge Switch 2/24s, or Edge Switch 2/32s in a storage area network (SAN) configuration. The following planning tasks are described in the chapter.

  • Page 146: Task 1: Prepare A Site Plan

    Configuration Planning Tasks Task 1: Prepare a Site Plan For each director, switch, or equipment rack installed, design a site plan that provides efficient work flow, operator convenience and safety, and adequate service clearances for the equipment rack. A customer manager should review the site plan with a service representative and consider: ■...

  • Page 147

    Configuration Planning Tasks ■ Security necessary to protect the installation’s physical integrity, while maintaining accessibility to the director or switch. ■ Equipment rack front and rear service clearances, operator clearances, and maintenance access clearances. ■ Weight of an equipment rack. Either multiple persons or a lift must be available during installation to remove the rack from the packing crate.

  • Page 148: Physical Planning And Hardware Installation Tasks

    Configuration Planning Tasks Table 4 lists physical planning and hardware installation tasks, and includes the activity, task owner, due date, and comments. Table 4: Physical Planning and Hardware Installation Tasks Activity Comments Task Owner Date Locate the physical facilities. Connect the facility alternating If more than one director or current (AC) power circuits.

  • Page 149: Operational Setup Tasks

    Configuration Planning Tasks Table 5 lists operational setup tasks, and includes the task owner, due date, and comments. Table 5: Operational Setup Tasks Task Activity Owner Date Comments Obtain IP address and subnet HAFM server (if installing on a LAN mask.

  • Page 150

    Configuration Planning Tasks Table 5: Operational Setup Tasks (Continued) Task Activity Owner Date Comments Determine SNMP access to Obtain SNMP trap recipient IP directors and switches. addresses. Determine SNMP information required (generic and product- specific). Determine if write permission is required for modifying SNMP variables.

  • Page 151: Task 2: Plan Fibre Channel Cable Routing

    Configuration Planning Tasks Task 2: Plan Fibre Channel Cable Routing Plan for sufficient single-mode fiber-optic and multimode fiber-optic cabling to meet the connectivity requirements for all Fibre Channel servers and devices. If a multi-switch fabric is to be enabled, plan for sufficient fiber-optic cabling to meet interswitch link (ISL) connectivity requirements.

  • Page 152: Task 3: Consider Interoperability With Fabric Elements And End Devices

    Configuration Planning Tasks Task 3: Consider Interoperability with Fabric Elements and End Devices HP conducts a substantial level of testing to ensure director and switch interoperability with fabric elements and end devices provided by multiple original equipment manufacturers (OEMs). New devices are tested and qualified on a continual basis.

  • Page 153: Task 4: Plan Console Management Support

    Configuration Planning Tasks Task 4: Plan Console Management Support Plan to implement one or more of the following methods to provide console management and support for directors and switches: ■ HAFM server — The rack-mounted HAFM server is used for product installation, initial software configuration, changing the configuration, and monitoring product operation.

  • Page 154: Task 5: Plan Ethernet Access

    Configuration Planning Tasks If director or switch management through an IBM host is planned, ensure the FMS feature key is ordered with the Product Manager application. This feature key enables host control of the product from an IBM System/390 or zSeries 900 Parallel Enterprise server attached to a Fibre Channel port.

  • Page 155: Task 6: Plan Network Addresses

    Configuration Planning Tasks Task 6: Plan Network Addresses Depending on the configuration of the LAN on which directors, switches, and the HAFM server are installed, plan network addressing as follows: ■ If installing products and the HAFM server on a dedicated (private) LAN segment, there is no requirement to change any default network addresses.

  • Page 156: Task 7: Plan Snmp Support (optional)

    Configuration Planning Tasks ■ HAFM server: — MAC address is unique. — IP address of the Ethernet adapter is 10.1.1.1. — Subnet mask is 255.0.0.0. — Gateway address is blank. Task 7: Plan SNMP Support (Optional) As an option, network administrators can use the HAFM application to configure an SNMP agent that runs on the HAFM server.

  • Page 157: Task 8: Plan E-mail Notification (optional), Task 9: Establish Product And Hafm Server Security Measures

    Configuration Planning Tasks Task 8: Plan E-Mail Notification (Optional) As an option, network administrators can configure director and switch e-mail support. The following support considerations are required if the e-mail notification feature is used: ■ Determine if e-mail notification is to be configured and used for significant system events.

  • Page 158: Task 10: Plan Phone Connections, Task 11: Diagram The Planned Configuration

    Configuration Planning Tasks Task 10: Plan Phone Connections Plan for one or more telephone connections near the HAFM server for service personnel use. While performing a diagnostic or repair action, a service representative or network administrator at the HAFM server may require voice technical support through a telephone connection.

  • Page 159: Rules For Port Names, Rules For Nicknames, Task 13: Complete The Planning Worksheet

    Configuration Planning Tasks Rules for Port Names Port names can be up to 24 alphanumeric characters in length. Spaces, hyphens ( - ), and underscores ( _ ) are allowed within the name. Each port name must be unique for a director; however, the same port name can be used on separate directors and switches.

  • Page 160

    Configuration Planning Tasks Product Planning Worksheet (Page 1 of 4) Director or Switch Name: Attached Devices ____________________________ IP Address: ____________________________ Unit Name: ____________________________ Port Port Name Location Type Model IP Address Zone SAN High Availability Planning Guide...

  • Page 161

    Configuration Planning Tasks Product Planning Worksheet (Page 2 of 4) Director or Switch Name: Attached Devices ____________________________ IP Address: ____________________________ Unit Name: ____________________________ Port Port Name Location Type Model IP Address Zone SAN High Availability Planning Guide...

  • Page 162

    Configuration Planning Tasks Product Planning Worksheet (Page 3 of 4) Director or Switch Name: Attached Devices ____________________________ IP Address: ____________________________ Unit Name: ____________________________ Port Port Name Location Type Model IP Address Zone SAN High Availability Planning Guide...

  • Page 163

    Configuration Planning Tasks Product Planning Worksheet (Page 4 of 4) Director or Switch Name: Attached Devices ____________________________ IP Address: ____________________________ Unit Name: ____________________________ Port Port Name Location Type Model IP Address Zone SAN High Availability Planning Guide...

  • Page 164: Task 14: Plan Ac Power

    Configuration Planning Tasks Task 14: Plan AC Power Plan for facility power sources for each equipment rack. Directors and switches in the rack operate at 50 to 60 Hertz (Hz) and 100 to 240 volts alternating current (VAC), and require a minimum dedicated 5-ampere service. If two power sources are supplied (optional but recommended for high availability), the equipment rack contains two customer-specified external power cords.

  • Page 165: Task 15: Plan A Multi-switch Fabric (optional)

    Configuration Planning Tasks Task 15: Plan a Multi-Switch Fabric (Optional) If a multi-switch fabric topology is to be implemented, carefully plan the physical characteristics and performance objectives of the topology. Include the proposed number of fabric elements, characteristics of attached devices, cost, nondisruptive growth requirements, and service requirements.

  • Page 166: Task 16: Plan Zone Sets For Multiple Products (optional)

    Configuration Planning Tasks Task 16: Plan Zone Sets for Multiple Products (Optional) If name server zoning is to be implemented, carefully plan the characteristics and security objectives (differentiation of operating systems, data sets, user groups, devices, or processes) of zone members, zones, and zone sets. If a fabric topology is implemented, zoning is configured on a fabric-wide basis.

  • Page 167: Index

    index binding fabric addresses switch director broadcast support gateway address IP address MAC address capacity planning subnet mask cascaded fabric topology HAFM server CD-ROM drive gateway address CLI, command line interface IP address congestion, ISL MAC address connectivity subnet mask fabric-attached loop arbitrated loop switch, see FC-AL switch FC-AL devices to fabric devices...

  • Page 168

    Index domain ID, assignment dual fabric data access type dual-fabric solution data collection default director network addresses E_Port segmentation HAFM server network addresses Edge Switch 2/16, description 26, definition Edge Switch 2/32, description arbitrated loop Embedded Web Server interface director 2/64 Enterprise Fabric mode FC-AL switch equipment symbols...

  • Page 169

    Index fabric island topology description fabric switch FMS, product management description FMS feature, description performance frame delivery order fabric-attached loop connectivity FRUs Fabrics View Hardware View Topology tab high availability Zone Set tab fan-out ratio FC-AL gateway address fabric attached-loop connectivity director default feature key HAFM server default...

  • Page 170

    Index I/O block size MAC address I/O profile director default I/O traffic requirements HAFM server default inband management access methods management inband product management HAFM application feature keys out-of-band incorporating switching products SNMP agent introduction web server director 21, management information bases IP address director-specific MIB director default...

  • Page 171

    Index notifications, state changes private arbitrated loop connectivity number of loop tenancies planning considerations planning tasks assign port names and nicknames complete planning worksheet Open Trunking feature consider interoperability with end devices description open-system management server diagram planned configuration description establish security measures open-system management server, see OSMS plan AC power...

  • Page 172

    Index service rate serviceability features rack stability, warning beaconing data collection ration, fan-out diagnostic software read/write mixture director-specific MIB redundant fabric Fabric Element MIB related documentation Fibre Alliance MIB remote user workstations redundant FRUs PC platforms RS-232 maintenance port UNIX workstations services requirements fabric...

  • Page 173

    Index hybrid multiswitch fabric tape drives, consolidation point-to-point technical support, HP overview tenancy, loop planning text symbols Tier 1 Tier 2 user workstation, planning support Tier 3 utilization, loop topology cascaded fabric core-to-edge fabric fabric island warning Fibre Channel rack stability mesh fabric symbols on equipment private arbitrated loop...

  • Page 174

    Index SAN High Availability Planning Guide...

This manual also for:

316095-b21 - storageworks edge switch 2/24 Storageworks 2/140 - director switch Storageworks 2/24 - edge switch Storageworks 64 - san director switch 316095-b21 - storageworks edge switch 2/24 Storageworks 2/140 - director switch... Show all

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