Sun Microsystems StorEdge 3000 Series Best Practices Manual
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Sun Microsystems StorEdge 3000 Series Best Practices Manual

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Sun StorEdge
3000 Family
™
Best Practices Manual
Sun StorEdge 3510 FC and 3511 SATA Arrays
Sun Microsystems, Inc.
www.sun.com
Part No. 816-7325-22
March 2007, Revision A
Submit comments about this document at:
http://www.sun.com/hwdocs/feedback

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  • Page 1 Sun StorEdge 3000 Family ™ Best Practices Manual Sun StorEdge 3510 FC and 3511 SATA Arrays Sun Microsystems, Inc. www.sun.com Part No. 816-7325-22 March 2007, Revision A Submit comments about this document at: http://www.sun.com/hwdocs/feedback...
  • Page 2 All rights reserved. Sun Microsystems, Inc. and Dot Hill Systems Corporation may have intellectual property rights relating to technology embodied in this product or document. In particular, and without limitation, these intellectual property rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent applications in the U.S.

  • Page 3: Table Of Contents

    Contents Preface xi Introduction 1 Executive Summary 1 RAS Features of Sun StorEdge 3000 Family Arrays 1 Additional RAS Features You Can Use With FC and SATA Arrays 2 Differences Between Sun StorEdge 3510 FC Array and Sun StorEdge 3511 SATA Array 4 Underlying Concepts and Practices 7 Fibre Channel Protocols 7...
  • Page 4 Saving and Restoring Configuration Information 16 Planning Your Storage Architecture 17 Direct-Attached Storage 18 Storage Area Networking 19 Scaling Capacity 21 First Steps in Designing a Solution 22 Designing a Storage Solution for an Existing Environment 22 Designing a New Storage Solution 22 General Configuration Considerations 23 DAS Configurations 25 Single-Controller DAS Configurations 25...
  • Page 5 Connecting One Expansion Unit 45 Connecting Two Expansion Units 46 Connecting Three Expansion Units 47 Connecting Four Expansion Units 48 Connecting Five Expansion Units 49 Connecting Six Expansion Units 51 Connecting Seven Expansion Units 53 Connecting Eight Expansion Units 55 Sun StorEdge 3511 SATA Array High-Capacity Configurations 57 Connecting One Expansion Unit 58 Connecting Two Expansion Units 59...
  • Page 6 Sun StorEdge 3000 Family Best Practices Manual • March 2007...
  • Page 7 Figures DAS and SAN Storage Architectures 17 FIGURE 3-1 Two DAS Configurations 18 FIGURE 3-2 Three Single-Controller DAS Configurations 26 FIGURE 4-1 Sample Single-Controller Sun StorEdge 3510 FC DAS Connections 27 FIGURE 4-2 Sample Single-Controller Sun StorEdge 3511 SATA DAS Connections FIGURE 4-3 Sample Dual-Controller Multipath DAS Configurations 29 FIGURE 4-4...
  • Page 8 Sun StorEdge 3510 FC Array Configuration with Seven Expansion Units 54 FIGURE 6-7 Sun StorEdge 3510 FC Array Configuration with Eight Expansion Units 56 FIGURE 6-8 Sun StorEdge 3511 SATA Array Configuration with One Expansion Unit 58 FIGURE 7-1 Sun StorEdge 3511 SATA Array Configuration with Two Expansion Units 59 FIGURE 7-2 Sun StorEdge 3511 SATA Array Configuration with Three Expansion Units 61 FIGURE 7-3...
  • Page 9 Tables Maximum Number of Disks per Logical Drive 9 TABLE 2-1 Maximum Number of Supported Physical and Logical Drives, Partitions, and LUN TABLE 2-2 Assignments 10 Actual Capacities per Drive 11 TABLE 2-3 Maximum Usable Storage Capacity Determined by RAID Level 11 TABLE 2-4 Default Stripe Size Per Optimization Mode (Kbyte) 13 TABLE 2-5...
  • Page 10 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 11: Preface

    Preface ™ This manual gives an overview of Sun StorEdge 3510 Fibre Channel (FC) arrays and Sun StorEdge 3511 SATA arrays, and presents several sample storage solutions for entry-level, mid-range, and enterprise servers. Caution – You should read the Sun StorEdge 3000 Family Safety, Regulatory, and Compliance Manual before beginning any procedure in this manual.
  • Page 12 Chapter 8 describes a sample high-capacity configuration that includes both Sun StorEdge 3510 FC expansion units and Sun StorEdge 3511 SATA expansion units connected to a Sun StorEdge 3510 FC RAID array in a way that maximizes reliability, availability, and serviceability. Using UNIX Commands ®...
  • Page 13 Typographic Conventions Typeface Meaning Examples The names of commands, files, Edit your.login.login file. AaBbCc123 and directories; on-screen Use ls -a to list all files. computer output % You have mail. What you type, when contrasted AaBbCc123 with on-screen computer output Password: AaBbCc123 Book titles, new words or terms,...
  • Page 14 Title (Continued) Part Number Sun StorEdge 3000 Family RAID Controller Firmware Migration Guide 819-6573 Sun StorEdge 3000 Family Safety, Regulatory, and Compliance Manual 816-7930 Accessing Sun Documentation All Sun StorEdge 3000 family documentation is available online in both PDF and HTML format at the following location: http://www.sun.com/products-n- solutions/hardware/docs/Network_Storage_Solutions/Workgroup/...
  • Page 15 508 Accessibility Features Sun StorEdge 3000 family documentation is available in Section 508-compliant HTML files that can be used with assistive technology programs for visually impaired personnel. These files are provided on the Documentation CD for your product as well as on the websites identified in the previous “Accessing Sun Documentation”...
  • Page 16 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 17: Introduction

    C H A P T E R Introduction This Best Practices Manual describes the use of Sun StorEdge 3510 FC arrays and Sun StorEdge 3511 SATA arrays, as well as the use of their corresponding expansion units. It complements the Sun StorEdge 3000 Family Installation, Operation, and Service Manual for these products.

  • Page 18: Additional Ras Features You Can Use With Fc And Sata Arrays

    Logical drives ■ The best practice for creating logical drives is to add them evenly across the primary and secondary controllers. With at least one logical drive assigned to each controller, both controllers are active. This configuration is known as an active-active controller configuration and allows maximum use of a dual- controller array's resources.
  • Page 19 It is prudent to use other RAS best practices, such as traditional backup-and-restore strategies and host-based multipathing and clustering, to ensure network reliability. Sun Microsystems makes available a wide variety of white papers and product documentation that provide specific information to help you plan or upgrade the architecture of your systems.

  • Page 20: Differences Between Sun Storedge 3510 Fc Array And Sun Storedge 3511 Sata Array

    A more basic article for less experienced system administrators who are setting ■ up file servers, “Introduction to Creating a File Server,” provides a useful overview of mirroring boot disks and using advanced RAID levels to distribute data across multiple physical disks in an array: http://www.sun.com/bigadmin/features/articles/file_server.html Performance issues and strategies are described in considerable detail in “Storage ■...
  • Page 21 Sun StorEdge 3511 SATA Expansion Units” on page Sun StorEdge 3510 FC arrays use Fibre Channel (FC) disk drives, and are supported by Sun Microsystems in primary online applications as well as secondary and near- line applications. Sun StorEdge 3511 SATA arrays are supported by Sun Microsystems in either near-line applications, such as backing up and restoring data, or secondary applications such as static storage.
  • Page 22 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 23: Underlying Concepts And Practices

    C H A P T E R Underlying Concepts and Practices This chapter provides a brief overview of important concepts and practices that underlie the configurations you can use. These concepts and practices are described in greater detail in other books in the Sun StorEdge 3000 family documentation set. Refer to “Related Documentation”...

  • Page 24: Supported Raid Levels

    There are several ways that 1024 LUNs can be configured. For example: 4 (host channels) x 8 (IDs per channel) x 32 (LUNs per ID) = 1024 maximum addressable LUNs in a FC-AL environment. However, configuring the maximum number of LUNs increases overhead and can have a negative impact on performance.

  • Page 25: Maximum Drive Configurations Per Array

    Supporting large storage capacities requires advanced planning since it requires using large logical drives with several partitions each or many logical drives. For maximum efficiency, create logical drives larger than 2 Tbyte and partition them into multiple LUNs with a capacity of 2 Tbyte or less. The largest supported logical drive configuration depends largely upon the cache optimization setting.

  • Page 26: Maximum Number Of Disks And Maximum Usable Capacity Per Logical Drive

    Maximum Number of Supported Physical and Logical Drives, Partitions, and LUN TABLE 2-2 Assignments Array Physical Logical Partitions per Partitions per LUN Assignments Drives Drives Logical Drive Logical Volume Sun StorEdge 108 (1 array and 8 128 (point-to-point mode) 3510 FC array expansion units) 64 (point-to-point mode, redundant configuration)

  • Page 27: Table 2-3 Actual Capacities Per Drive

    Caution – In FC and SATA configurations with large drive capacities, the size of the logical drive might exceed the device capacity limitation of your operating system. Be sure to check the device capacity limitation of your operating system before creating the logical drive.

  • Page 28: Cache Optimization

    Once the logical drives have been created, assigned to a controller, and partitioned, the partitions must be mapped to host channels as LUNs in order for them to be seen by a host. It is usually desirable to map each partition to two host channels for redundant pathing.

  • Page 29: Table 2-5 Default Stripe Size Per Optimization Mode (Kbyte)

    Transaction-based and database update applications read and write small files in ■ random order. Since the cache block size works in conjunction with the default stripe size set by the cache optimization mode for each logical drive you create, these default stripe sizes are consistent with the cache block size setting.

  • Page 30: Configuring An Array's Rccom Channel

    Configuring an Array’s RCCOM Channel Redundant controller communication (RCCOM) provides the communication channels by which two controllers in a redundant RAID array communicate with one another. This communication allows the controllers to monitor each other, and includes configuration updates, and control of cache. By default, channels 2 and 3 are configured as DRV + RCCOM (Drive and RCCOM).

  • Page 31: Array Management Tools

    Array Management Tools Sun StorEdge 3000 family arrays use the same management interfaces and techniques. They can be configured and monitored through any of the following methods: Using the out-of-band serial port connection (RAID only), a Solaris tip session or ■...

  • Page 32: Saving And Restoring Configuration Information

    Note – Do not use both in-band and out-of-band connections at the same time to manage the array. Otherwise conflicts between multiple operations might occur. Saving and Restoring Configuration Information An important feature of these management tools is the ability to save and restore configuration information in a number of ways.

  • Page 33: Planning Your Storage Architecture

    C H A P T E R Planning Your Storage Architecture There are two popular methods for connecting storage to servers. Direct attached storage (DAS) uses a direct connection between a server and its ■ storage system. The DAS solution of connecting each server to its own dedicated storage system is straightforward, and the absence of storage switches can minimize costs in some instances.

  • Page 34: Direct-Attached Storage

    The challenge of selecting between DAS and SAN is often further complicated by the need to choose between different storage systems, one designed for DAS or another intended for SAN. Fortunately, Sun StorEdge 3510 FC arrays and Sun StorEdge 3511 SATA arrays inherently support both DAS Sun StorEdge 3510 FCnd SAN.

  • Page 35: Storage Area Networking

    Storage Area Networking Combining storage switches with a Sun StorEdge 3000 series array configuration creates a SAN, increasing the number of servers that can be connected. Essentially, the maximum number of servers that can be connected to the SAN becomes equal to the number of available storage switch ports.
  • Page 36 Sun StorEdge 3510 FC arrays and Sun StorEdge 3511 SATA arrays are designed to be deployed in SANs based on switched Fibre Channel fabrics. In a SAN scenario, the server HBAs are connected to one side of the fabric and storage is connected to the other.

  • Page 37: Scaling Capacity

    Scaling Capacity Sun StorEdge 3510 FC arrays and Sun StorEdge 3511 SATA arrays are available in a number of configurations to address a broad range of storage capacities. The Sun StorEdge 3510 FC array is available with 15,000 RPM FC disks to address ■...

  • Page 38: First Steps In Designing A Solution

    First Steps in Designing a Solution There are two simple yet effective approaches for designing a Sun StorEdge 3510 FC array or Sun StorEdge 3511 SATA array solution into your environment. Both methods allow for the rapid estimation of an appropriate DAS or SAN solution. Regardless of which method is used, the storage needs of each application and server involved must be identified to establish the total amount of storage capacity required.

  • Page 39: General Configuration Considerations

    environment. For environments with different server configurations, choose the solution that best matches the servers whose applications are mission-critical or most important. General Configuration Considerations The entry-level configuration for a Sun StorEdge 3510 FC array or Sun StorEdge 3511 SATA array uses only one RAID controller. If this configuration is used, two single- controller arrays should use host-based mirroring to ensure high reliability, availability, and serviceability.
  • Page 40 Use dual pathing for each LUN and use Sun StorEdge Traffic Manager software to ■ provide load balancing across controller ports for increased performance. The maximum number of LUNs when using point-to-point protocol is 128 for ■ single-path configurations and 64 for dual-path configurations. Power-up the equipment in the following order: ■...

  • Page 41: Das Configurations

    C H A P T E R DAS Configurations This chapter presents several DAS configurations you can use. Single-Controller DAS Configurations Note – Using single connections between Fibre Channel arrays and servers creates single points of failure (SPOF) that can cause interruptions in the event a connection becomes unreliable or fails.

  • Page 42: Single-Controller Das Tips And Techniques

    Dual Servers Single Server Quad Servers Three Single-Controller DAS Configurations FIGURE 4-1 Note – Do not use a Sun StorEdge 3511 SATA array to store single instances of data. It is more suitable for use in configurations where the array has a backup or archival role.

  • Page 43: Single-Controller Das Setup Details

    This single-controller configuration offers no redundancy. Consider mirroring ■ single controllers or using dual controllers instead to achieve redundancy and increase reliability, availability, and serviceability. See “General Configuration Considerations” on page 23 for more information. Single-Controller DAS Setup Details shows a single-controller Sun StorEdge 3510 FC array in a DAS FIGURE 4-2 configuration.

  • Page 44: Figure 4-3 Sample Single-Controller Sun Storedge 3511 Sata Das Connections

    Server 1 Server 4 Server 3 Server 2 H/D/RCC Sample Single-Controller Sun StorEdge 3511 SATA DAS Connections FIGURE 4-3 The general procedure for creating this configuration follows. 1. Check the position of installed SFP modules. Move or add SFP modules as necessary to support the connections needed.

  • Page 45: Dual-Controller Multipath Das Configurations

    10. Connect the second server (if needed) to controller port FC5. 11. Connect the third server (if needed) to controller port FC 1. 12. Connect the fourth server (if needed) to controller port FC4. 13. After completing the configuration, save the configuration using the “Save nvram to disks”...

  • Page 46: Dual-Controller Multipath Das Tips And Techniques

    Note – Do not use a Sun StorEdge 3511 SATA array to store single instances of data. It is more suitable for use in configurations where the array has a backup or archival role. Dual-Controller Multipath DAS Tips and Techniques A Sun StorEdge 3510 FC array with two controllers can be configured to support ■...

  • Page 47: Sample Dual-Controller Multipath Das Setup Details

    Sample Dual-Controller Multipath DAS Setup Details shows a Sun StorEdge 3510 FC array in a dual-controller multipath DAS FIGURE 4-5 configuration. shows a Sun StorEdge 3511 SATA array in a dual-controller FIGURE 4-6 multipath DAS configuration. Server 2 Server 1 Server 3 Server 4 Sample Dual-Controller Multipath Sun StorEdge 3510 DAS Connections...

  • Page 48: Figure 4-6 Sample Dual-Controller Multipath Sun Storedge 3511 Das Connections

    Server 4 Server 3 Server 1 Server 2 H/D/RCC H/D/RCC Sample Dual-Controller Multipath Sun StorEdge 3511 DAS Connections FIGURE 4-6 The general procedure for creating this configuration follows. 1. Check the position of installed SFP modules. Move them as necessary to support the connections needed.
  • Page 49 9. Map Logical Drive 2 (if created) to channels 0 and 5 of the primary controller. 10. Map Logical Drive 3 (if created) to channels 1 and 4 of the secondary controller. 11. Connect the first server (Server 1) to port FC 0 of the upper controller and port FC 5 of the lower controller.
  • Page 50 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 51: San Configurations

    C H A P T E R SAN Configurations This chapter presents several SAN configurations you can use. Full-Duplex SAN Configurations Typical Full-Fabric SAN Configuration FIGURE 5-1 Note – Do not use a Sun StorEdge 3511 SATA array to store single instances of data. It is more suitable for use in configurations where the array has a backup or archival role.

  • Page 52: Full-Duplex San Tips And Techniques

    Full-Duplex SAN Tips and Techniques In a full-duplex SAN configuration, the switches communicate with the array host ■ ports using a fabric point-to-point (F_port) mode. This enables transparent controller fail-over and fail-back without server-resident software. However, supporting hot-swap servicing of a failed controller requires the use of multipathing software, such as the Sun StorEdge Traffic Manager, on the connected servers.

  • Page 53: Sample Full-Duplex San Setup Details

    Sample Full-Duplex SAN Setup Details shows a Sun StorEdge 3510 FC array in a full-duplex SAN configuration. FIGURE 5-2 shows a Sun StorEdge 3511 SATA array in a full-duplex SAN FIGURE 5-3 configuration. Server 1 Server 2 Switch 2 Switch 1 Sample Sun StorEdge 3510 FC Full-Duplex SAN Connections FIGURE 5-2 Chapter 5 SAN Configurations...

  • Page 54: Figure 5-3 Sample Sun Storedge 3511 Sata Full-Duplex San Connections

    Server 2 Server 1 Switch 1 Switch 2 H/D/RCC H/D/RCC Sample Sun StorEdge 3511 SATA Full-Duplex SAN Connections FIGURE 5-3 The general procedure for creating this configuration follows. 1. Check the position of installed SFP modules. Move them as necessary to support the connections needed.

  • Page 55: Redundant Point-To-Point San Configurations

    9. Map Logical Drive 1 to channels 1 and 5 of the secondary controller. 10. If more than two logical drives were created, map even-numbered logical drives to channels 0 and 4 of the primary controller and odd-numbered logical drives to channels 1 and 5 of the secondary controller.

  • Page 56: Redundant Point-To-Point Tips And Techniques

    Note – Do not use a Sun StorEdge 3511 SATA array to store single instances of data. It is more suitable for use in configurations where the array has a backup or archival role. Redundant Point-to-Point Tips and Techniques In the redundant point-to-point SAN configuration, the switches communicate ■...

  • Page 57: Figure 5-5 Sample Redundant Point-To-Point Sun Storedge 3510 San Connections

    Server 2 Server 1 Switch 1 Switch 2 Sample Redundant Point-to-Point Sun StorEdge 3510 SAN Connections FIGURE 5-5 Server 2 Server 1 Switch 1 Switch 2 H/D/RCC H/D/RCC Sample Redundant Point-to-Point Sun StorEdge 3511 SAN Connections FIGURE 5-6 Chapter 5 SAN Configurations...
  • Page 58 The general procedure for creating this configuration follows. 1. Check the position of installed SFP modules. Move them as necessary to support the connections needed. 2. Connect expansion units if needed. For information about connecting multiple expansion units, see “Sun StorEdge 3510 FC Array High-Capacity Configurations”...

  • Page 59: Using Multiple Expansion Units In High Capacity Configurations

    C H A P T E R Using Multiple Expansion Units in High Capacity Configurations High-capacity configurations using multiple expansion units are appropriate for some situations, although using multiple arrays connected to the same SAN generally offers significantly better performance than a single high-capacity configuration.

  • Page 60: Limitations

    “Sun StorEdge 3511 SATA Array High-Capacity Configurations” on page 57 information about adding expansion units to a Sun StorEdge 3511 SATA array. These configurations work best when you select the highest-capacity disk available without exceeding maximum limits set by the firmware. Refer to the Sun StorEdge 3000 Family FRU Installation Guide for information about supported disk drives, cables, SFPs, and other user-replaceable items.

  • Page 61: Connecting One Expansion Unit

    Connecting One Expansion Unit Sun StorEdge 3510 FC Array Configuration with One Expansion Unit FIGURE 6-1 Chapter 6 Using Multiple Expansion Units in High Capacity Configurations...

  • Page 62: Connecting Two Expansion Units

    Connecting Two Expansion Units Sun StorEdge 3510 FC Array Configuration with Two Expansion Units FIGURE 6-2 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 63: Connecting Three Expansion Units

    Connecting Three Expansion Units Sun StorEdge 3510 FC Array Configuration with Three Expansion Units FIGURE 6-3 Chapter 6 Using Multiple Expansion Units in High Capacity Configurations...

  • Page 64: Connecting Four Expansion Units

    Connecting Four Expansion Units Sun StorEdge 3510 FC Array Configuration with Four Expansion Units FIGURE 6-4 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 65: Connecting Five Expansion Units

    Connecting Five Expansion Units This high-capacity configuration using five expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Use four expansion units or fewer when possible. Note –...

  • Page 66: Figure 6-5 Sun Storedge 3510 Fc Array Configuration With Five Expansion Units

    Sun StorEdge 3510 FC Array Configuration with Five Expansion Units FIGURE 6-5 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 67: Connecting Six Expansion Units

    Connecting Six Expansion Units This high-capacity configuration using six expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Use four expansion units or fewer when possible.

  • Page 68: Figure 6-6 Sun Storedge 3510 Fc Array Configuration With Six Expansion Units

    Sun StorEdge 3510 FC Array Configuration with Six Expansion Units FIGURE 6-6 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 69: Connecting Seven Expansion Units

    Connecting Seven Expansion Units This high-capacity configuration using seven expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Use four expansion units or fewer when possible. Note –...

  • Page 70: Figure 6-7 Sun Storedge 3510 Fc Array Configuration With Seven Expansion Units

    Sun StorEdge 3510 FC Array Configuration with Seven Expansion Units FIGURE 6-7 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 71: Connecting Eight Expansion Units

    Connecting Eight Expansion Units This high-capacity configuration using eight expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Use four expansion units or fewer when possible. Note –...

  • Page 72: Figure 6-8 Sun Storedge 3510 Fc Array Configuration With Eight Expansion Units

    Sun StorEdge 3510 FC Array Configuration with Eight Expansion Units FIGURE 6-8 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 73: Sun Storedge 3511 Sata Array High-Capacity Configurations

    C H A P T E R Sun StorEdge 3511 SATA Array High-Capacity Configurations Sun StorEdge 3511 SATA arrays allow the connection of up to five expansion units to support a maximum of 72 disks. You can create large configurations beyond 12 disks if you use the guidelines in this section.

  • Page 74: Connecting One Expansion Unit

    Connecting One Expansion Unit H/D/RCC H/D/RCC Sun StorEdge 3511 SATA Array Configuration with One Expansion Unit FIGURE 7-1 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 75: Connecting Two Expansion Units

    Connecting Two Expansion Units H/D/RCC H/D/RCC Sun StorEdge 3511 SATA Array Configuration with Two Expansion Units FIGURE 7-2 Chapter 7 Sun StorEdge 3511 SATA Array High-Capacity Configurations...

  • Page 76: Connecting Three Expansion Units

    Connecting Three Expansion Units This high-capacity configuration using three expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Note – Other “daisy-chained” cable connections are possible that do not require reconfiguring RAID channels 4 and 5 as drive channels.

  • Page 77: Figure 7-3 Sun Storedge 3511 Sata Array Configuration With Three Expansion Units

    H/D/RCC H/D/RCC Sun StorEdge 3511 SATA Array Configuration with Three Expansion Units FIGURE 7-3 Chapter 7 Sun StorEdge 3511 SATA Array High-Capacity Configurations...

  • Page 78: Connecting Four Expansion Units

    Connecting Four Expansion Units This high-capacity configuration using four expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Note – Other “daisy-chained” cable connections are possible that do not require reconfiguring RAID channels 4 and 5 as drive channels.

  • Page 79: Figure 7-4 Sun Storedge 3511 Sata Array Configuration With Four Expansion Units

    H/D/RCC H/D/RCC Sun StorEdge 3511 SATA Array Configuration with Four Expansion Units FIGURE 7-4 Chapter 7 Sun StorEdge 3511 SATA Array High-Capacity Configurations...

  • Page 80: Connecting Five Expansion Units

    Connecting Five Expansion Units This high-capacity configuration using five expansion units requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1, affecting supported host configurations. Note – Other “daisy-chained” cable connections are possible that do not require reconfiguring RAID channels 4 and 5 as drive channels.

  • Page 81: Figure 7-5 Sun Storedge 3511 Sata Array Configuration With Five Expansion Units

    H/D/RCC H/D/RCC Sun StorEdge 3511 SATA Array Configuration with Five Expansion Units FIGURE 7-5 Chapter 7 Sun StorEdge 3511 SATA Array High-Capacity Configurations...
  • Page 82 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

  • Page 83: Combining Sun Storedge 3510 Fc Arrays And Sun Storedge 3511 Sata Expansion Units

    C H A P T E R Combining Sun StorEdge 3510 FC Arrays and Sun StorEdge 3511 SATA Expansion Units You can connect both Sun StorEdge 3510 and 3511 expansion units to a Sun StorEdge 3510 RAID array. This makes it possible to combine fast, reliable online data processing with less expensive near-line storage and backup.

  • Page 84: Connecting Two Fc Expansion Units And Three Sata Expansion Units To A Sun Storedge 3510 Raid Array

    Do not combine Sun StorEdge 3510 FC drives and Sun StorEdge 3511 SATA drives ■ on the same Fibre Channel loop. Use them only on separate loops. Manage and monitor SATA arrays and expansion units out-of-band. Due to the ■ slower performance of SATA drives, managing and monitoring Sun StorEdge 3511 SATA arrays and expansion units using in-band connections may result in contention between I/O operations and monitoring operations.

  • Page 85: Figure 8-1 Sun Storedge 3510 Fc Array With Two Fc Expansion Units And Three Sata Expansion Units

    Sun StorEdge 3510 FC Array with Two FC Expansion Units and Three SATA Expansion Units FIGURE 8-1 Chapter 8 Combining Sun StorEdge 3510 FC Arrays and Sun StorEdge 3511 SATA Expansion Units...
  • Page 86 Sun StorEdge 3000 Family Best Practices Manual • March 2007...

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