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HP D5970A - NetServer - LCII Configuration Manual

Integrated hp netraid controller configuration guide.
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HP Part Number 5967-5210
Printed in June 1998

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   Summary of Contents for HP D5970A - NetServer - LCII

  • Page 1: Integrated Hp Netraid Controller

    Integrated HP NetRAID Controller Configuration Guide HP Part Number 5967-5210 Printed in June 1998...

  • Page 2: Audience Assumptions

    Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett-Packard.

  • Page 3: Table Of Contents

    Contents 1 Introduction....................1 Integrated HP NetRAID Controller..............1 Features of the Integrated HP NetRAID Controller .........1 Channels and Devices ................1 Controller Hardware ...................2 SCSI Firmware ..................3 Array Spanning ..................3 O Support....................3 Physical Disk Roaming ................3 Multiple Adapters ..................3 Fault-Tolerance and Management Features..........4 Changing Capacity and RAID Levels ............4 About This Guide ...................5 Other Information Sources ................5...

  • Page 4: Table Of Contents

    Contents Custom Configuration ................28 5 Configuration ..................... 39 Overview ..................... 39 Step C. Verify Hardware Setup ..............39 Step D. Enable Integrated HP NetRAID Controller ........39 Step E. Boot HP NetServer Navigator to Launch HP NetRAID Assistant..41 Boot HP NetServer Navigator CD-ROM...........

  • Page 5: Table Of Contents

    Contents 7 Preparing for Online Capacity Expansion ..........65 Step M. Prepare for Online Capacity Expansion........... 65 Online Capacity Expansion Under Novell NetWare........66 Theory of Operation................. 66 Preparing for Online Capacity Expansion..........68 Setting Up Your Array for Capacity Expansion ......... 68 Online Capacity Expansion Under Windows NT...........

  • Page 6: Table Of Contents

    Contents HP NetRAID Config .................. 101 HP NetRAID Config Menus ..............102 HP NetRAID Express Tools............... 103 HP NetRAID Express Tools Menus ............104 11 Troubleshooting..................105 Power-up (Boot) Error Messages............... 105 Other BIOS Error Messages..............109 Other Troubleshooting ................109 Troubleshooting Management Over the Network........

  • Page 7: Introduction, Integrated Hp Netraid Controller, Features Of The Integrated Hp Netraid Controller, Channels And Devices

    1 Introduction Integrated HP NetRAID Controller The integrated HP NetRAID controller on the HP NetServer LH 3 and LH 3r provides an integral disk array storage system. The controller uses the PCI (Peripheral Component Interconnect) standard to control data transfers on one or two SCSI channels.

  • Page 8: Controller Hardware

    Chapter 1 Introduction For each HP NetRAID channel, you can have either one internal, or one external connection. The HP NetServer LH 3/LH 3r hot-swap mass storage cage supports up to six Ultra2 disk drive modules. A second hot-swap mass storage cage can be installed in your HP NetServer LH 3/LH 3r which supports an additional six Ultra2 disk drive modules.

  • Page 9: Scsi Firmware, Array Spanning, Physical Disk Roaming, Multiple Adapters

    Chapter 1 Introduction SCSI Firmware The integrated HP NetRAID controller firmware handles all RAID and SCSI command processing and also supports the following functions: Disconnect/Reconnect feature optimizes SCSI Bus seek. Tagged Command Queuing allows multiple commands to be sent to the controller, thus improving random access.

  • Page 10: Fault-tolerance And Management Features, Changing Capacity And Raid Levels

    Chapter 1 Introduction modules to be moved to an HP NetRAID-3Si adapter without losing data readability. Be sure to check your system’s PCI I/O slot availability and any slot restrictions before purchasing another adapter. Fault-Tolerance and Management Features Fault-Tolerance features include the following: Automatic failed-drive detection with Autorebuild (automatic rebuild with a hot spare or when a drive is replaced) Manual hot-swap replacement...

  • Page 11: About This Guide, Other Information Sources

    Chapter 1 Introduction About This Guide This Integrated HP NetRAID Controller Configuration Guide helps you plan and configure your HP NetRAID system. It guides you through power-up, launching the HP NetServer Navigator software, configuring the HP NetRAID system, and installing a NOS-specific configuration utility. It contains a glossary, and an appendix contains worksheets to use in planning the configuration of physical and logical drives.

  • Page 13: Raid Overview, Physical Drives, Arrays

    2 RAID Overview This chapter summarizes concepts and terminology used to describe RAID systems. It describes the different RAID levels available with the integrated HP NetRAID controller. For definitions of terms not introduced here, see the Glossary. RAID Overview The integrated HP NetRAID controller lets you link multiple hard disk drives together and write data across them as if they were one large drive.

  • Page 14: Hot Spares, Logical Drives

    Chapter 2 RAID Overview Arrays can combine disk drives that are all on one channel, or they can combine disk drives from one or two different channels. Hot Spares A hot spare is a powered-on, stand-by disk drive that is ready for use should another disk drive fail.

  • Page 15: Understanding Raid Levels

    Chapter 2 RAID Overview The nine physical drives are in three arrays (A0, A1, and A2) with one global hot spare. Figure 2-3. Sample Configuration with Three Arrays and Three Logical Drives Understanding RAID Levels During installation, you configure your logical drives by running a disk array configuration utility.

  • Page 16: Arrays With No Redundancy: Raid Level 0

    Chapter 2 RAID Overview Arrays with No Redundancy: RAID Level 0 RAID 0: Striping In RAID 0 configurations, data is distributed among hard disks in the array via an algorithm called striping. Data written to a logical drive is divided into pieces called blocks.

  • Page 17: Non-spanned Arrays With Redundancy: Raid Levels 1, 3, And 5

    Chapter 2 RAID Overview Non-spanned Arrays with Redundancy: RAID Levels 1, 3, and 5 RAID 1: Mirroring In RAID 1 configurations, data on one disk is completely duplicated on another disk. This is called mirroring. RAID 1 must be configured on a two-disk array. (The array cannot contain more than two disk drives.) With this algorithm, if either of the two disks fail, data is available from the duplicate disk.

  • Page 18

    Chapter 2 RAID Overview RAID 3: Striping with Dedicated Parity In RAID 3 configurations, each data stripe generates one parity block to provide redundancy and data protection. The parity block is encoded information that can be used to reconstruct the data on that stripe if one of the disks fails. RAID 3 configurations dedicate one disk in the array to store all parity blocks.

  • Page 19

    Chapter 2 RAID Overview RAID 5: Striping with Distributed Parity RAID 5 is the most common configuration because it provides good overall performance and data protection with a minimum loss of storage capacity. RAID 5 distributes the parity blocks equally among all disk drives to achieve better overall performance than if a dedicated parity disk is used (RAID 3).

  • Page 20: Spanned Arrays: Raid Levels 10, 30, And 50

    Chapter 2 RAID Overview Spanned Arrays: RAID Levels 10, 30, and 50 Array spanning allows the capacity of two, three, or four arrays to be combined into a single storage space. A spanned array configuration must have the same number of disk drives in each array: each array can have two disks, three disks, four disks, and so on.

  • Page 21

    Chapter 2 RAID Overview RAID 30: Spanning with Dedicated Parity Drives In RAID 30 configurations, parity blocks provide redundancy to a logical drive that spans two, three, or four arrays. (RAID 30 is a RAID 3 configuration with array spanning.) If your RAID 30 logical drive has two arrays with four physical drives each, data blocks are written as follows: Array 1 Array 2...

  • Page 22

    Chapter 2 RAID Overview RAID 50: Spanning with Distributed Parity In RAID 50 configurations, parity blocks are distributed throughout the logical drive that spans two, three, or four arrays. (RAID 50 is a RAID 5 configuration with array spanning.) If your RAID 50 logical drive has two arrays with four physical drives each, data blocks are written as follows: Array 1 Array 2...

  • Page 23

    Chapter 2 RAID Overview Table 2-1. RAID Level Summary for RAID Levels 0 to 5 RAID Level RAID 0 RAID 1 RAID 3 RAID 5 striping mirroring striping with striping with Also Known As dedicated parity distributed parity Fault Tolerance Redundancy none duplicate...

  • Page 24

    Chapter 2 RAID Overview Table 2-2. RAID Level Summary for Spanned Arrays RAID Level RAID 10 RAID 30 RAID 50 striping with striping with striping with Also Known As mirrored arrays dedicated parity drives distributed parity Fault Tolerance Redundancy duplicate parity parity Type...

  • Page 25

    Chapter 2 RAID Overview Figure 2-4. Decision Tree for Choosing a RAID Level...

  • Page 27: Configuration Overview

    3 Configuration Overview To configure your integrated HP NetRAID controller, you need to perform the following steps. Steps A through M are described in Chapters 4 through 7 of this guide. Step A. Plan Your Hardware (Chapter 4 Step H. Decide Which HP NetRAID and Worksheet A) Driver You Need (Chapter 6) Step B.

  • Page 29: Planning, Overview, Step A. Plan Your Hardware, Gather Information

    4 Planning Overview Before attempting to configure your disk array subsystem, you should invest some time in planning the configuration that best suits your computing environment. The options you choose depend on factors such as the host operating system used and your requirements for data protection, performance, and capacity.

  • Page 30: Sample Worksheet A

    Chapter 4 Planning Sample Worksheet A Figure 4-1 shows a sample Configuration Worksheet A. (See Appendix B for a complete explanation of this example.) Figure 4-1. Sample Worksheet A for Integrated HP NetRAID Controller...

  • Page 31: Channels

    Chapter 4 Planning Channels In this section you determine which physical devices will connect to each SCSI channel. As explained in Chapter 1, "Introduction," for each channel, you have either one internal or one external connection. The integrated HP NetRAID controller supports both internal and external connectors for Channels 0 and 1.

  • Page 32

    Chapter 4 Planning enable HP NetRAID for SCSI B, you must connect the device to a SCSI controller accessory board. HP NetRAID Channels The integrated HP NetRAID controller refers to channels as 0 and 1. If only one HP NetRAID channel is enabled, it becomes Channel 0. If both HP NetRAID channels are enabled, then SCSI A is Channel 0 and SCSI B is Channel 1.

  • Page 33: Step B. Plan Arrays And Logical Drives, Automatic Configuration

    Chapter 4 Planning SCSI Transfer Rate On Worksheet A, record the SCSI transfer rate for each channel. The default SCSI transfer rate is Ultra2, because the internal hot-swap mass storage cage supports Ultra2 disk drive modules. However, you can change the SCSI transfer rate to Fast or Ultra if the channel is connected to an external mass storage enclosure.

  • Page 34: Custom Configuration

    Chapter 4 Planning For each array, the system looks to see if you have asked to implement redundancy (checked the Redundancy box). If you are not using redundancy, all logical drives are assigned RAID level 0. If an array contains two drives, and you checked Redundancy, the logical drive is assigned RAID level 1.

  • Page 35

    Chapter 4 Planning Plan Your Non-Hot-Swap Devices If you plan to enable integrated HP NetRAID on SCSI B, you need to decide how to use the non-hot-swap SCSI devices. For each non-hot-swap device log its array number in Worksheet A. Non-hot-swap drives can be used alone, as the only disk in the array.

  • Page 36

    Chapter 4 Planning Consider what RAID levels you will need. Different RAID levels require different minimum numbers of physical drives. For example, RAID 1 requires exactly two physical drives, RAID levels 3 and 5 require at least three physical drives, and arrays with only one physical drive must be assigned RAID 0.

  • Page 37

    Chapter 4 Planning Figure 4-2. Two Logical Drives Where Whole Arrays Appear on Different Channels Figure 4-3 shows the same configuration, except Array A0 contains physical drives from both Channel 0 and Channel 1. Figure 4-3. Two Logical Drives Where Array A0 Contains Drives on More than One Channel...

  • Page 38

    Chapter 4 Planning Plan Hot Spares (Optional) On Worksheet A, log any hot spare disk modules and indicate whether each is global or dedicated to a particular array. A hot spare is a powered-on, stand-by disk that is ready for use should another disk fail.

  • Page 39

    Chapter 4 Planning Plan Logical Drives Logical drives are virtual drives configured within an array or across arrays. Logical drives can take three forms: A logical drive can use all of the storage capacity of one array. A logical drive can use less than the available storage capacity of one array.

  • Page 40

    Chapter 4 Planning Although each drive in an array must have the same capacity, one logical drive can span two or more arrays with different capacities. For example, one array might contain three drives of 4 MB each, and the second array might contain three drives of 12 MB each.

  • Page 41

    Chapter 4 Planning Logical Drives, RAID Levels, and Array Spanning On Worksheet B, logical drives are numbered LD0 through LD7. For each logical drive you plan to create, record the following information: Array number to which the logical drive is assigned Whether the logical drive spans up to four sequentially-numbered arrays RAID level For each logical drive, you also need to define the logical drive size (capacity),...

  • Page 42

    Chapter 4 Planning Write Policy When the IOP writes to disk, the data is first written to the cache on the assumption that the IOP will read it again soon. The two Write policies are: Write-Through: In a write-through cache, data is written to disk at the same time it is cached.

  • Page 43

    Chapter 4 Planning Cache Policy HP NetRAID lets you choose one of two cache policies: Cached I/O: Reads are always cached regardless of randomness. The selected Read policy (Read-Ahead, Normal, or Adaptive) and Write policy (Write-Through and Write-Back) always applies. This is the default setting.

  • Page 45: Configuration, Overview, Step C. Verify Hardware Setup, Step D. Enable Integrated Hp Netraid Controller

    5 Configuration Overview This chapter covers Steps C, D, E, F, and G of the installation procedure. You should already have completed Step A, "Plan Your Hardware," and Step B, "Plan Arrays and Logical Drives" in Chapter 4. Step C. Verify Hardware Setup Verify that your hardware setup matches the plans you sketched in Worksheet A.

  • Page 46

    Chapter 5 Configuration CAUTION If you ever use the Setup (F2) utility to reset to system defaults, your HP NetRAID configuration will also be reset to its default value. The default HP NetRAID configuration enables integrated HP NetRAID and includes SCSI A only. If you have changed the HP NetRAID configuration in the Setup utility, and then you reset to system defaults, you must re-enable the correct HP NetRAID channels before you exit...

  • Page 47: Step E. Boot Hp Netserver Navigator To Launch Hp Netraid Assistant

    Chapter 5 Configuration 5. If necessary, you can use the Setup utility to change settings such as IRQs or MP specification settings. 6. Press the F10 function key to save and exit. 7. In the Setup Configuration dialog box, press the Enter key to answer "Yes"...

  • Page 48: Hp Netraid Assistant

    Chapter 5 Configuration HP NetRAID Assistant Figure 5-1. HP NetRAID Assistant Figure 5-1 shows a typical configuration where SCSI A is included in the HP NetRAID subsystem and SCSI B is excluded. If you include both SCSI A and SCSI B, you see two channel columns of physical devices. The HP NetRAID Assistant, shown in Figure 5-1, is an object-oriented graphical user interface (GUI) with conventions similar to those in Microsoft Windows.

  • Page 49

    Chapter 5 Configuration Toolbar: The toolbar icons are separated into four categories of functions: Configuration, Properties, Miscellaneous, and Other. They provide shortcuts to access the menu options. Figure 5-2. HP NetRAID Assistant Main Menu Toolbar Options Adapter box: The Adapter box shows the number of the current adapter that is being configured.

  • Page 50: Select Adapter To Configure, Clear Configuration, Check Rebuild Rate

    Chapter 5 Configuration Rebuilding: The physical drive is involved in a rebuild process to recover data that was on a failed drive. Logical Devices box: When arrays, logical drives, and hot spares have been defined, they are displayed here. Clicking on Logical View or Physical View switches between showing logical drives and physical drives.

  • Page 51: Assign Global Hot Spares, Select Wizard

    Chapter 5 Configuration NOTE Clearing the configuration does not affect the rebuild rate. Assign Global Hot Spares NOTE Refer to Worksheet A when assigning hot spares. To assign any physical drives to the global hot spare pool: 1. Click on a Ready physical drive in the Physical Devices box. This drive must have capacity that is at least as great as any drive it will replace.

  • Page 52

    Chapter 5 Configuration Figure 5-3. HP NetRAID Assistant Wizard Starting Window 3. Click one of the following configuration modes: Select Custom if you want to define the arrays and logical drives and set their parameters. Select Automatic if you want the HP NetRAID Assistant Wizard to define the arrays and logical drives (and set their parameters) for you automatically.

  • Page 53: Define Physical Arrays And Dedicated Hot Spares

    Chapter 5 Configuration 4. Click the Next button. 5. If you chose Automatic mode, skip to "Preview Configuration" later in this chapter. Define Physical Arrays and Dedicated Hot Spares NOTE Refer to Worksheet A when defining arrays. The HP NetRAID Assistant Wizard Array Definition window appears, displaying the Physical Devices and Logical Devices configured on your system.

  • Page 54

    Chapter 5 Configuration To assign physical drives to the first array: 1. Select all the Ready physical drives that you want to put into the first array. Clicking on a drive either selects or deselects it. 2. Click the Add to Array button. Physical drives show "A:new"...

  • Page 55: Define Logical Drives

    Chapter 5 Configuration 3. Click the Dedicated to button, and then click on the down arrow to display a list of valid arrays. 4. Click the array to which you want to dedicate the hot spare. 5. Click OK. 6. Continue defining arrays and hot spares. To reclaim (undo) one or more hot spares: 1.

  • Page 56

    Chapter 5 Configuration Figure 5-5. HP NetRAID Assistant Wizard Logical Drive Definition Window The Logical Drive Parameters box shows the number of the logical drive being defined and has boxes to set its RAID level and size. The Span Arrays check box turns array spanning on or off. The Advanced button leads to more parameters, which are preset but can be changed.

  • Page 57

    Chapter 5 Configuration To define a logical drive that does not span arrays: 1. Make sure that the Span Arrays box does not have a check mark in it; if it does, click on it to remove the check. 2. Set the RAID level by clicking the arrow and selecting the RAID level from the pull-down menu.

  • Page 58: Preview Configuration

    Chapter 5 Configuration 1. Click the Span Arrays box to mark it with a check. An array labeled with a hyphenated number, such as A0-1 or A0-3, appears in the Logical Devices box. 2. If you know the exact size of the logical drive you want, enter it in the Size (MB) box.

  • Page 59

    Chapter 5 Configuration Figure 5-6. HP NetRAID Assistant Wizard Configuration Preview Window NOTE The RAID level of a logical drive that spans arrays lacks the terminal zero. Mentally add it to make RAID 1 into RAID 10, RAID 3 into RAID 30, and RAID 5 into RAID 50. To switch between showing logical drives and physical drives: Click Logical View or Physical View.

  • Page 60

    Chapter 5 Configuration To display the properties of a physical drive: Double-click the physical drive in the Physical Devices box. To change a logical drive: 1. Click the Back button to back up to the previous screen. 2. Delete the last logical drive defined (accepted) by clicking the Undo button.

  • Page 61: Step G. Save Configuration And Initialize, Save To Binary File, Print Configuration, Initialize Logical Drives

    Chapter 5 Configuration Step G. Save Configuration and Initialize In this step, you will do the following: Save the configuration to a binary file Print a copy of the configuration Initialize the logical drives if you have not done so already Save to Binary File To save the configuration to a binary file: 1.

  • Page 62: Exit Hp Netraid Assistant

    Chapter 5 Configuration To initialize the logical drives you defined for the adapter in the HP NetRAID Assistant Wizard: 1. If you installed one or more HP NetRAID-3Si adapters, click the Adapter pull-down list and select the adapter. 2. Select the logical drives to be initialized. 3.

  • Page 63: Hp Netraid Software, Overview, Step H. Decide Which Hp Netraid Drivers You Need

    6 HP NetRAID Software Overview In this chapter you will complete the next five steps of the configuration: In Step H, you choose whether you want to use I O or non-I HP NetRAID drivers In Step I, you use the HP NetServer Navigator CD-ROM to prepare the diskettes needed to install the NOS, HP NetRAID drivers, and the HP NetRAID NOS-specific utilities In Step J, you install the network operating system (NOS) if necessary and...

  • Page 64: Step I. Use The Hp Netserver Navigator Cd-rom To Prepare Disks, Check Latest Versions

    Chapter 6 HP NetRAID Software Step I. Use the HP NetServer Navigator CD-ROM to Prepare Disks In this step, you will use the HP NetServer Navigator CD-ROM to create the diskettes you need to install the non-I O HP NetRAID drivers and the HP NetRAID configuration utility specific to your NOS.

  • Page 65: Make Nos-specific Configuration Utility Diskette

    Chapter 6 HP NetRAID Software 1. Turn on the HP NetServer and monitor, and insert the HP NetServer Navigator CD-ROM into the drive. Turn off the HP NetServer power, wait 10 seconds, and turn it back on again. 2. From the HP Navigator Main Menu, choose Configuration and Installation Assistant.

  • Page 66: Print The Network Operating System Instructions, Step J. Install Nos And Hp Netraid Drivers

    Chapter 6 HP NetRAID Software For Windows NT, create the utility diskette by selecting NetRAID Assistant for WindowsNT and Windows95 in the diskette library. For NetWare, select NetRAID Utilities for NetWare in the diskette library. 4. Follow the onscreen instructions to create the NOS-specific diskette. 5.

  • Page 67: Step K. Install Nos-specific Configuration Utility

    Chapter 6 HP NetRAID Software Step K. Install NOS-specific Configuration Utility In this step, you install the configuration utility specific to Windows NT or Novell NetWare. If you are using Microsoft Windows NT, you install the HP NetRAID Assistant utility. This is the Windows NT version of the utility you used to configure your system in Chapter 5.

  • Page 68: Step L. Run Hp Netraid Express Tools (optional)

    Chapter 6 HP NetRAID Software Novell NetWare 3.2 1. Exit to the DOS prompt. 2. Insert the diskette called "NetRAID Utilities for NetWare." 3. Type Copy <d1>:\NetRAID\*.* <d2>:\server.312, where <d1> is the drive letter for the diskette drive and <d2> is the hard disk where NetWare is installed.

  • Page 69

    Chapter 6 HP NetRAID Software To change the SCSI transfer rate: 1. If you have installed one or more HP NetRAID-3Si adapters, select the integrated controller or adapter controlling the SCSI channel on which Fast/Wide or Ultra SCSI support is to be enabled: Choose Select Adapter from the Tools Management menu.

  • Page 71: Preparing For Online Capacity Expansion, Step M. Prepare For Online Capacity Expansion

    7 Preparing for Online Capacity Expansion Step M. Prepare for Online Capacity Expansion The HP NetRAID Online Capacity Expansion feature allows you to add new storage capacity to drives controlled by an integrated HP NetRAID controller without rebooting the server. Online Capacity Expansion has these restrictions: You can use Online Capacity Expansion with any logical drive of RAID level 0, 3, or 5.

  • Page 72: Online Capacity Expansion Under Novell Netware, Theory Of Operation

    Chapter 7 Preparing for Online Capacity Expansion This chapter is divided into two sections: See "Capacity Expansion Under Novell NetWare" if you are using Novell NetWare. See "Capacity Expansion Under Windows NT" if you are using Microsoft Windows NT. Online Capacity Expansion Under Novell NetWare Theory of Operation Normally, to add capacity you must shut down the server to reconfigure and then restore data, or you must add the new storage space as a new volume.

  • Page 73

    Chapter 7 Preparing for Online Capacity Expansion installation occurs. As long as the physical capacity is not exceeded, the installation will be successful. Although undesirable, NetWare allows you to create volumes into the virtual space. (This is because during volume creation, NetWare only looks at the beginning of the volume and if there is real storage space there, the volume will be created.) However, when writing to this volume, you cannot write beyond the physical limit and write errors will be generated when the physical space is filled.

  • Page 74: Setting Up Your Array For Capacity Expansion, Preparing For Online Capacity Expansion

    Chapter 7 Preparing for Online Capacity Expansion Preparing for Online Capacity Expansion This section describes how to enable Virtual Sizing and set up your partitions to permit easy capacity expansion. For NetWare installations, plan ahead and consider your storage use. Since NetWare permits only one NetWare partition per logical drive, make the NetWare partition the size of the virtual logical drive in advance so that you can expand that volume.

  • Page 75

    Chapter 7 Preparing for Online Capacity Expansion NOTE It is important to initialize your logical drives. If the drives have been previously configured under an operating system, there can sometimes be residual partition/format information which subsequently causes misrepresentation of logical drives under NetWare's Install module.

  • Page 76

    Chapter 7 Preparing for Online Capacity Expansion 11. If you have installed one or more HP NetRAID-3Si adapters, press Esc to return to the Objects menu. Enable Virtual Sizing on the logical drives of all adapters as necessary. 12. To exit, press Esc until you see the Exit? box, then choose Yes. NOTE Clearing a previous configuration does not reset the Virtual Sizing setting for a logical drive.

  • Page 77: Online Capacity Expansion Under Windows Nt, Theory Of Operation

    Chapter 7 Preparing for Online Capacity Expansion At this point, the logical drive has a NetWare partition of 144 GB with a 12-GB segment set as a volume. The 12-GB volume is mounted and ready for use. Be sure not to exceed the actual physical capacity when creating the 12-GB volume and include other uses such as a Hot Fix area.

  • Page 78

    Chapter 7 Preparing for Online Capacity Expansion NOTE The additional capacity will have a different drive letter than the original logical drive. If the expanded capacity and the original capacity must share the same drive letter, you cannot expand capacity online and you must reboot NT. For more information about drive letters, see "Capacity Expansion"...

  • Page 79

    Chapter 7 Preparing for Online Capacity Expansion Setting Up Your Array for Capacity Expansion This section makes the following assumptions: You have already configured your HP NetRAID system as discussed in Chapter 5. You should have created only one logical drive per array. For example, you might have four physical drives of 4 GB.

  • Page 80

    Chapter 7 Preparing for Online Capacity Expansion 6. From the Logical Drive menu, choose the logical drive you want to prepare for expansion. 7. From the Logical Drive menu for the drive you want to prepare, choose Properties. 8. Choose Virtual Sizing. 9.

  • Page 81

    Chapter 7 Preparing for Online Capacity Expansion Partition and Format Drives that do not Contain Windows NT Follow these instructions for drives that do not contain Windows NT. 1. Create a partition equal to (or less than) the real storage capacity. In our ongoing example, you would create a 12 GB partition.

  • Page 83: Managing Servers Over The Network, Adapter Management, Features

    8 Managing Servers Over the Network This chapter describes the installation and use of software to manage the integrated HP NetRAID controller and other HP NetRAID Series adapters over a network. It lists features of the software, identifies the operating systems it supports, details installation instructions, and shows how to get started.

  • Page 84: Nos Requirements, Other Requirements

    Chapter 8 Managing Servers Over the Network NOS Requirements The sections that follow identify the NOS requirements for different clients and servers on the network. Requirements for Clients that Manage HP NetRAID Over the Network Microsoft Windows NT or Windows 95 must be installed. If the client will manage NetWare servers, you must install "Client Service for NetWare,"...

  • Page 85: Understanding Hp Netraid Network Utilities, Determine Where To Install Hp Netraid Assistant

    Chapter 8 Managing Servers Over the Network NOS-specific drivers are installed in all servers. (See Chapter 6 of this guide for instructions.) TCP/IP is configured and operational on all clients and servers. You must know the server names and their IP addresses. Understanding HP NetRAID Network Utilities The software that lets you manage integrated HP NetRAID controllers (and HP NetRAID Series adapters) over a network is built on remote procedure calls...

  • Page 86: Identify The Registration Server/client, Hp Netraid Network Utilities To Install

    Chapter 8 Managing Servers Over the Network Identify the Registration Server/Client Only one server or client on the network can be identified as the Registration Server. The Registration Server does not have to be the same server or client that is running HP NetRAID Assistant.

  • Page 87

    Chapter 8 Managing Servers Over the Network Table 8-1. NetRAID Network Utilities Installation HP NetRAID HP NetRAID HP NetRAID Management Registration Access HP NetRAID Functions Server Service Assistant Server: - is the Registration Server - has no HP NetRAID controller - cannot run HP NetRAID Assistant Server:...

  • Page 88: Make The Installation Disk If Necessary, Microsoft Windows Nt Client Or Server Installation Instructions

    Chapter 8 Managing Servers Over the Network Make the Installation Disk if Necessary The files needed to install the HP NetRAID Network utilities can be found on the following utilities diskette(s) created by the HP NetServer Navigator CD-ROM: For Microsoft Windows NT and Windows 95, there are two diskettes titled "NetRAID Assistant for Windows NT and Windows 95."...

  • Page 89: Run Setup

    Chapter 8 Managing Servers Over the Network Run Setup To run the Setup program, follow the steps listed below for either Microsoft Windows NT 4.0 or Windows 95: 1. Select Start from the taskbar. Then choose Run from the Start menu. 2.

  • Page 90: Edit The Regserv.dat And Hosts Files

    Chapter 8 Managing Servers Over the Network 9. When Setup asks for the next diskette, remove Diskette 1 and insert Diskette 2 of "NetRAID Assistant for Windows NT and Windows 95." Setup copies various files. 10. In the Setting Password window, type the password that must be given for Full Access mode to manage this server.

  • Page 91: Finishing Up, Novell Netware Server Installation Instructions

    Chapter 8 Managing Servers Over the Network NOTE HP recommends that all servers and clients that manage integrated HP NetRAID controllers (or HP NetRAID Series adapters) over the network have the same hosts file content. This prevents problems in resolving server names and addresses.

  • Page 92: Using Hp Netraid Assistant To Manage Servers, Before Starting Hp Netraid Assistant

    Chapter 8 Managing Servers Over the Network 8. Edit the regserv.dat file located at sys:\etc\regserv.dat Replace localhost with the name of the server that will be the Registration Server for this network. 9. Edit the hosts file located at sys:\etc\hosts. It should contain the IP address and name of each server with integrated HP NetRAID controllers (or HP NetRAID Series adapters) to be managed over the network.

  • Page 93: Start Hp Netraid Assistant

    Chapter 8 Managing Servers Over the Network 3. HP NetRAID Access Service: Start it by double-clicking on its Windows icon or by loading NetWare module raidserv.nlm. NOTE To change the password for a server using Windows NT, run setpass.exe under \netraid\dll\. To change the password for a server using NetWare, reinstall the HP NetRAID management software, as described in this chapter, with the new password.

  • Page 94: Select Another Server-adapter Pair

    Chapter 8 Managing Servers Over the Network If HP NetRAID Assistant is started on a client or server that can access integrated HP NetRAID controllers (or HP NetRAID Series adapters) over the network, you must select the server you want to access. The HP NetRAID Assistant Main window has a Server pull-down list next to the Adapter pull- down list.

  • Page 95

    Chapter 8 Managing Servers Over the Network NOTE You cannot leave the current server-adapter pair if any operations--such as Performance Monitor or the rebuilding or reconstruction of a drive--are running in Full Access mode. You cannot change from View Only mode to Full Access mode.

  • Page 97: Configuring A Second Integrated Hp Netraid Channel

    9 Configuring a Second Integrated HP NetRAID Channel If you have already configured, and are operating, a one-channel integrated HP NetRAID system, you can add a second HP NetRAID channel at any time. This chapter provides instructions on adding a second HP NetRAID channel after one channel has been operating for a time.

  • Page 98: Options For Adding A Second Channel

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel Options for Adding a Second Channel How you enable a second HP NetRAID channel depends on where you installed your network operating system (NOS). Option A. Your NOS is installed on an HP NetRAID logical drive. In this case, you will not have to reinstall your NOS.

  • Page 99

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel 3. Plan the configuration of your second channel as described in Chapter 4 of this guide. Be sure to note that all non-hot-swap devices on SCSI B will become part of your HP NetRAID channel. For performance reasons, non-hot-swap devices and hot-swap disk drives should not be combined in the same array.

  • Page 100

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel 11. Save your configuration and initialize your new logical drives on Channel 1 as described in "Step G" in Chapter 5 of this guide. Exit HP NetRAID Assistant. CAUTION Do not initialize the existing logical drives on Channel 0! If you initialize your existing drives, you will lose all of your data.

  • Page 101

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel 6. Enable HP NetRAID on SCSI A using the Setup (F2) utility. See "Step D. Enable Integrated HP NetRAID Controller" in this guide for complete instructions. Integrated HP NetRAID should be set to Enable. Included SCSI_A Channel should be set to Yes.

  • Page 102: Option B: Your Nos Is Installed On A Non-raid Hard Disk Module

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel CAUTION Do not initialize the existing logical drives on Channel 1! If you initialize your existing drives, you will lose all of your data. 16. Set your SCSI Transfer Rate if necessary, as described in "Step L" in Chapter 6 of this guide.

  • Page 103

    Chapter 9 Configuring a Second Integrated HP NetRAID Channel 7. Select the Configuration menu, and choose Clear Configuration. 8. Exit HP NetRAID Assistant and reboot the HP NetServer. 9. Enable HP NetRAID on the second SCSI channel using the Setup (F2) utility.

  • Page 105: Understanding Hp Netraid Utilities, Hp Netraid Assistant

    10 Understanding HP NetRAID Utilities After you have configured your arrays and logical drives, there are three utilities that help you manage HP NetRAID systems. Two of these utilities are available to specific network operating systems. The three utilities are: HP NetRAID Assistant (used with Windows NT) HP NetRAID Config (used with Novell NetWare) HP NetRAID Express Tools (used with all network operating systems)

  • Page 106: Hp Netraid Assistant Menus

    Chapter 10 Understanding HP NetRAID Utilities HP NetRAID Assistant Menus Figure 10-1. HP NetRAID Assistant Menu Chart...

  • Page 107: Hp Netraid Config

    Chapter 10 Understanding HP NetRAID Utilities HP NetRAID Config HP NetRAID Config performs the same functions as HP NetRAID Assistant, but it runs under Novell NetWare. HP NetRAID Config allows you to reconfigure and manage your RAID system and monitor its status. You do not need to reboot your HP NetServer to use HP NetRAID Config.

  • Page 108: Hp Netraid Config Menus

    Chapter 10 Understanding HP NetRAID Utilities HP NetRAID Config Menus Figure 10-2. HP NetRAID Configuration Menu Chart...

  • Page 109: Hp Netraid Express Tools

    Chapter 10 Understanding HP NetRAID Utilities HP NetRAID Express Tools HP NetRAID Express Tools is a text-based configuration utility that is contained in the controller firmware and available to all network operating systems. HP NetRAID Express Tools contains some advanced management and diagnostic features that are not available with HP NetRAID Assistant or HP NetRAID Config.

  • Page 110: Hp Netraid Express Tools Menus

    Chapter 10 Understanding HP NetRAID Utilities HP NetRAID Express Tools Menus Figure 10-3. HP NetRAID Express Tools Menu Chart...

  • Page 111: Troubleshooting, Power-up (boot) Error Messages

    11 Troubleshooting Power-up (Boot) Error Messages Adapter BIOS Disabled. No Logical Drives Handled by BIOS Problem: The HP NetRAID BIOS is disabled. (This is not a problem if the BIOS is intentionally disabled to prevent booting from the adapter.) Suggested solution: Enable the BIOS by using HP NetRAID Express Tools, as described in "Step L, Run HP NetRAID Express Tools"...

  • Page 112

    Chapter 11 Troubleshooting No HP NetRAID Adapter Problem: The HP NetRAID BIOS cannot communicate with the firmware on the adapter. Suggested solutions: Remove any HP NetRAID adapters from the PCI slots. If the error message persists, see the Service and Support chapter of the HP NetServer LH 3/LH 3r User Guide.

  • Page 113

    Chapter 11 Troubleshooting 3. Use View/Add Configuration to examine both configurations. 4. Resolve the configuration mismatch by selecting and saving one of the two configurations. Unresolved configuration mismatch between disk(s) and NVRAM on the adapter Problem: The configuration stored in NVRAM does not match the configuration stored on the drives, and configuration information on some drives conflict with configuration information on other drives.

  • Page 114

    Chapter 11 Troubleshooting x Logical Drives Degraded Problem: x number of logical drives signed on in the degraded (critical) state. Suggested solution: 1. Use a utility, such as HP NetRAID Assistant or HP NetRAID Config, to determine which physical drive(s) is not responding and thereby makes the logical drives degraded.

  • Page 115: Other Bios Error Messages, Other Troubleshooting

    Chapter 11 Troubleshooting Other BIOS Error Messages Error: Following SCSI Disk not found and No Empty Slot Available for mapping it Problem: The physical disk roaming feature failed to find the physical drive with the listed SCSI ID, and no slot is available in which to map the physical drive. The controller cannot resolve the physical drives into a current configuration.

  • Page 116

    Chapter 11 Troubleshooting Hard Drive Fails Often Problem: One of the hard drives in the array fails often. Suggested solutions: Check the drive error counts using HP NetRAID Assistant Physical Drive Properties. Be aware that the drive error counter clears if the drive is moved or powered off while the adapter remains powered on.

  • Page 117: Troubleshooting Management Over The Network

    Chapter 11 Troubleshooting HP NetRAID BIOS Banner Not Displayed Problem: The HP NetRAID BIOS and firmware banner does not appear. Suggested solution: Use the Setup utility to ensure that integrated HP NetRAID has been enabled for the appropriate channels. See Step D in Chapter 5 for information.

  • Page 118

    Chapter 11 Troubleshooting Can't unload raidserv.nlm If an integrated HP NetRAID controller (or HP NetRAID Series adapter) in a NetWare server is being accessed by a configuration utility (HP NetRAID Assistant in Full Access mode or HP NetRAID Config), the raidserv.nlm module cannot be unloaded until the controller or adapter is no longer being accessed.

  • Page 119: Warranty And Support, Hardware Warranty, Obtaining Hp Repair And Telephone Support

    Please follow the installation instructions in this guide before calling for service. U.S. and Canada: 1-970-635-1000 Europe: +31-20-581-3330 Hewlett-Packard has offices in over 100 countries. If you are located outside these areas, check your local telephone directory for a Hewlett-Packard sales and service office, or authorized service representative.

  • Page 121: A Product Specifications, Integrated Hp Netraid Controller Specifications

    A Product Specifications Integrated HP NetRAID Controller Specifications Parameter Specification Processor Intel i960RD™ @ 66 MHz Bus Type PCI 2.1 Bus Data Transfer Rate Up to 132 MB BIOS HP NetRAID BIOS Cache Configuration 16 MB using 50 ns EDO DRAM Firmware 1 MB flash ROM Nonvolatile RAM...

  • Page 123: B Worksheets, Configuration Worksheets

    B Worksheets Configuration Worksheets Figures B-1 and B-2 are worksheets for you to record your configuration choices for the hardware and logical drives. We recommend that you log your configuration selections on photocopies of these worksheets.

  • Page 124

    Appendix B Worksheets Figure B-1. Worksheet A...

  • Page 125

    Appendix B Worksheets Figure B-2. Worksheet B...

  • Page 126: Sample Configuration Worksheet

    Appendix B Worksheets Sample Configuration Worksheet Figure B-3. Sample Worksheet A...

  • Page 127

    Appendix B Worksheets Figure B-4. Sample Worksheet B...

  • Page 128: Physical Arrays And Hot Spares, Logical Drives

    Appendix B Worksheets Figures B-3 and B-4 are samples of Worksheets A and B for an HP NetRAID adapter with ten physical drives, three arrays, and three logical drives. It has a 50% rebuild rate. Physical Arrays and Hot Spares Array 0 on Channel 0 contains three 9-GB physical drives (SCSI ID # 0, 1, 3).

  • Page 129: Glossary, Disk Array Terms And Technologies

    Glossary Disk Array Terms and Technologies Array: An array of disk modules combines the storage space on the disk modules into a single segment of contiguous storage space. The integrated HP NetRAID controller can group disk modules on one or more of its SCSI channels into an array.

  • Page 130

    Glossary Channel: An electrical path for the transfer of data and control information between a disk and a disk controller. Format: The process of writing zeros to all data fields in a physical drive (hard drive) and to map out unreadable or bad sectors. Because most hard drives are factory formatted, formatting is usually only done if a hard disk generates several media errors.

  • Page 131

    Glossary Logical Drive: A virtual drive within an array, which may consist of more than one physical disk. Logical drives divide up the contiguous storage space of an array of disk modules or a spanned group of arrays of disks. The storage space in a logical drive is spread across all the disks in the array or spanned arrays.

  • Page 132

    Glossary Physical Disk Roaming: The ability of a controller to keep track of a hot swap disk module that has been moved to a different slot in the hot swap cages. Both slots must be controlled by the same controller. Power Fail Safeguard: When this setting is enabled, during a reconstruction process (not a rebuild) a copy of the data that is being restructured will always be stored on disk, so that if a power failure occurs during the reconstruction, there...

  • Page 133

    Glossary RAID levels 10, 30, and 50 result when logical drives span arrays. Table 2-2 in Chapter 2 describes RAID levels for logical drives that span arrays. RAID 10 results when a RAID 1 logical drive spans arrays. RAID 30 results when a RAID 3 logical drive spans arrays. RAID 50 results when a RAID 5 logical drive spans arrays.

  • Page 134

    Glossary Online: a powered-on and operational disk that has been configured. Hot Spare: a powered-on, stand-by disk ready for use should a disk fail. Failed: errors on the disk have caused it to fail, or you have used an HP NetRAID utility to take the drive offline.

  • Page 135

    Glossary memory read. Write-back is efficient, because an entry may be written many times in the cache without a disk access. Write Through: In a write-through cache, data is written to disk at the same time as it is cached. Write-through is simpler than write-back, because an entry that is to be replaced can be overwritten in the cache, as it will already have been copied to disk.

  • Page 137: Index

    Index channels. See SCSI channels clear (reset) configuration, 44 Abort button, 56 configuration overview, 21 Accept Array button, 48 Configuration Preview window, 53 Accept button, 51 configuration utilities, 57 adapter Configuration Wizard. See HP setting current adapter, 44 NetRAID Assistant Wizard Adapter box configuration worksheets, 117 HP NetRAID Assistant, 43...

  • Page 138

    Index exiting HP NetRAID Express Tools, 63 HP NetRAID channels, 26 expansion, capacity, 4 HP NetRAID Config, 101 menu map, 102 HP NetRAID driver installation, 60 failed HP NetRAID Express Tools, 103 status of SCSI disk, 128 exiting, 63 failed state of SCSI disk, 43 menu map, 104 fault tolerance starting, 62...

  • Page 139

    Index in arrays, 31 Online Capacity Expansion feature, 65 initializing, 55 online state of physical drive, 43 planning, 33, 35 properties, 53 setting parameters, 51 parity, 125 states of, 125 performance undoing, 52, 54 RAID levels, 17, 18 Physical Devices box logical volume, 125 HP NetRAID Assistant, 43 physical disk roaming, 3, 126...

  • Page 140

    Index ready state of physical drive, 43 Step B. Plan Arrays and Logical Ready status of SCSI disk, 127 Drives, 27 rebuild Step C. Verify Hardware Setup, 39 Step D. Enable Integrated HP NetRAID operation, 127 status of SCSI disk, 128 Controller, 39 rebuild rate, 32, 127 Step E.

  • Page 141

    Index configuration, 57 HP NetRAID Assistant, 42, 99 Wizard. See HP NetRAID Assistant HP NetRAID Config, 101 Wizard HP NetRAID Express Tools, 103 Worksheet A, 118 installing NOS-specific, 61 Worksheet B, 119 latest versions, 58 write policy, 128 planning, 36 setting, 51 virtual sizing, 51, 123, 128...

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