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HP Array Configuration Utility User Guide January 2006 (First Edition) Part Number 416146-001

Getting started 10 The main ACU configuration screen appears. GUI operating modes The GUI format of ACU has three configuration modes: • Standar

Getting started 11 Typical Configuration Wizards mode screen The Configuration Wizards mode screen consists of four regions: the Devices list, the

Getting started 12 Typical Express Configuration mode screen NOTE: Express mode is listed as a configuration option only if the controller that y

Configuring a new controller 13 Configuring a new controller In this section Using Standard Configuration mode...

Configuring a new controller 14 Menu item Possible tasks Array Assign Spare Create Logical Drive Delete Expand Re-Mirror Array Remove Spare Split M

Configuring a new controller 15 3. Select a RAID level, and then click Next. 4. If you select a fault-tolerant RAID method and an unassigned ph

Configuring a new controller 16 The Configuration View panel displays a placeholder for the array that you are about to create. (If there are many p

Configuring a new controller 17 7. Click Finish to confirm the configuration. The drives are now configured as unused space on the new array. To cr

Configuring a new controller 18 6. Set the size that you want the logical drive to be, and then click Next. If the controller has an array accelera

Modifying an existing configuration 19 Modifying an existing configuration In this section Choices available after opening ACU...

© Copyright 2006 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties

Modifying an existing configuration 20 Modifying a configuration using Express mode NOTE: Express mode is listed as a configuration option only i

Modifying an existing configuration 21 Controller settings The default controller settings that ACU provides are adequate for many purposes. When ne

Modifying an existing configuration 22 • For better system performance, use physical drives that are attached to different ports on the controller.

Modifying an existing configuration 23 The next screen enables you to set the size of the logical drive. The default size shown is the largest possi

Modifying an existing configuration 24 Delete logical drives This task deletes the selected logical drive and converts it into unused drive space. Y

Modifying an existing configuration 25 To check the progress of an array expansion, click the icon for that array in the Configuration View panel. A

Modifying an existing configuration 26 6. Click Finish to accept the changes. At this point (before clicking Save in the next step), you can arrange

Modifying an existing configuration 27 NOTE: Be sure that every HBA in the system has access to the logical drives for which multi-path will be u

Modifying an existing configuration 28 Configuring switches If the selected controller supports switch configuration, the menu link for this feature

Modifying an existing configuration 29 The screen now displays a URL for launching the Switch Configuration Utility. This utility is a Java™ applet

Contents 3 Contents Getting started...

Modifying an existing configuration 30 3. Insert the CD that contains ACU into the CD-ROM drive. 4. Open ACU, and stay in Standard configuration mo

Scripting in ACU 31 Scripting in ACU In this section Introduction to scripting in ACU ...

Scripting in ACU 32 If you do not specify a capture file name, ACU gives the file the default name of ACUCAPT.INI and places it in the ACU working d

Scripting in ACU 33 * ArrayAccelerator = Enable|Disable * LogicalDriveSSPState = Enable|Disable * SSPAdaptersWithAccess = [N],[N]...|None PreferredP

Scripting in ACU 34 Category Options Comments Logical Drive LogicalDrive RAID Size Sectors StripeSize ArrayAccelerator LogicalDriveSSPState SSPAdap

Scripting in ACU 35 Controller You must enter a value for this option because it identifies the controller that is to be configured. • All—Configu

Scripting in ACU 36 Read:write ratio RA4x00 with 16MB cache RA4x00 with 48MB cache All other controllers with battery-backed cache All other control

Scripting in ACU 37 Array category These options are available under the Array category: • Array (on page 37) • OnlineSpare (on page 37) • Drive

Scripting in ACU 38 • SSPAdaptersWithAccess (on page 39) • PreferredPath (on page 39) • HBA_WW_ID (on page 39) • ConnectionName (on page 39) • H

Scripting in ACU 39 In Reconfigure mode, the default setting is the existing stripe size for the specified logical drive. If you specify a stripe si

Contents 4 Controller category...

Scripting in ACU 40 HostMode This option specifies the HostMode for a selected HBA. Setting the Host Mode optimizes the storage array for the select

Scripting in ACU 41 Message Comment or explanation (if not self-explanatory) Cannot create array. The controller either has no unassigned physical

Scripting in ACU 42 Message Comment or explanation (if not self-explanatory) Internal error. An internal ACU error has occurred, and some error is

Scripting in ACU 43 Message Comment or explanation (if not self-explanatory) New array ID already exists. This error occurs in Configure mode when

Using the Command Line Interface 44 Using the Command Line Interface In this section Overview of the ACU CLI...

Using the Command Line Interface 45 The remaining examples in this chapter are described as if entered in Console mode. CLI syntax Whether entered

Using the Command Line Interface 46 Keyword Abbreviation in ACU CLI Keyword Abbreviation in ACU CLI chassisname* ch* preferredpathmode ppm chassiss

Using the Command Line Interface 47 Creating a logical drive When you use the CLI to create a logical drive, the array that holds the logical drive

Using the Command Line Interface 48 physicaldrive 1:13 (box 1:bay13, Parallel SCSI, 9.1 GB, OK) physicaldrive 1:14 (box 1:bay14, Parallel SCSI, 9.1

Using the Command Line Interface 49 logicaldrive 1 (33.9 GB, RAID 0, OK) array B logicaldrive 2 (298 MB, RAID 1+0, OK) logicaldrive 3 (896 MB, RAID

Getting started 5 Getting started In this section Features and system requirements ...

Using the Command Line Interface 50 => ctrl ch="Lab 4" show ssp A typical screen response could be: MSA1000 at Lab 4 Adapter ID: 210000

Using the Command Line Interface 51 Syntax: <target> modify ai=# cn="connection name" where <target> is a controller that supp

Using the Command Line Interface 52 Expanding an array You can increase the storage space on an array by adding physical drives. However, the added

Using the Command Line Interface 53 Syntax: <target> add spares=[#:]#:#,[#:]#:#,[#:]#:#–[#:]#:#,...|allunassigned [forced] <target> rem

Using the Command Line Interface 54 • At the medium setting, rebuilding occurs for half of the time, and normal system operations occur for the rest

Using the Command Line Interface 55 <target> modify ssd=# where <target> is a controller and # is a number between 1 and 30. This number

Using the Command Line Interface 56 <target> modify redundantcontroller=disable where <target> is a controller that has an enabled redun

Using the Command Line Interface 57 Setting the preferred path mode The preferred path mode determines how I/O traffic to the logical drives is mana

Probability of logical drive failure 58 Probability of logical drive failure In this section Factors involved in logical drive failure ...

Probability of logical drive failure 59 Probability of logical drive failure vs. number of drives in array

Getting started 6 Setting the execution mode for Microsoft Windows During the installation process on a server using a supported Microsoft® Windows®

Drive arrays and fault-tolerance methods 60 Drive arrays and fault-tolerance methods In this section Drive arrays...

Drive arrays and fault-tolerance methods 61 With an array controller installed in the system, the capacity of several physical drives can be combine

Drive arrays and fault-tolerance methods 62 logical drive, the term array is often used as a synonym for logical drive. However, an array can contai

Drive arrays and fault-tolerance methods 63 • RAID 1+0—Drive Mirroring • RAID 5—Distributed Data Guarding • RAID 6 (ADG)—Advanced Data Guarding R

Drive arrays and fault-tolerance methods 64 RAID 1+0—drive mirroring In a RAID 1+0 configuration, data is duplicated to a second drive. When the ar

Drive arrays and fault-tolerance methods 65 • No data is lost when a drive fails, as long as no failed drive is mirrored to another failed drive (up

Drive arrays and fault-tolerance methods 66 and Qx,y in the figure), allowing data to still be preserved if two drives fail. Each set of parity data

Drive arrays and fault-tolerance methods 67 Item RAID 0 RAID 1+0 RAID 5 RAID 6 (ADG) Tolerates simultaneous failure of more than one physical dr

Diagnosing array problems 68 Diagnosing array problems In this section Diagnostic tools ...

Acronyms and abbreviations 69 Acronyms and abbreviations ACR Array Configuration Replicator ADG Advanced Data Guarding (also known as RAID 6) ADU

Getting started 7 NOTE: Some advanced tasks are not available in all operating modes. For further information, refer to "Tasks possible in ea

Index 70 A abbreviations in CLI 45 ADU (Array Diagnostic Utility) 68 array accelerator, disabling 17, 21, 55 array capacity expansion 24 arra

Index 71 POST error messages 68 probability of logical drive failure 58 R RAID level migration 25 RAID levels 62, 63, 64, 65 RAID levels, com

Getting started 8 Opening ACU in Local Application mode 1. Click Start, and navigate to Programs>HP System Tools>HP Array Configuration Utili

Getting started 9 The main ACU configuration screen appears. Opening ACU through Systems Insight Manager 1. On the server that has ACU loaded, co