Note: The information contained in this article is structured as help information for the System Management Interface Tool (SMIT) and is not intended for general reading.
Lists the current configuration of your disk array subsystem (specifically. subsystems, disk array controllers and associated hdisks).
Allows you to view or change the parameters associated with your RAIDiant disk array subsystem. These parameters include:
The Disk Array Router selected on the previous screen.
Lists all of the RAIDiant disk array controllers associated with your system.
Allows you to select a SCSI adapter and a connection address by which a new Disk array controller can be added to your system.
Allows you to select the desired SCSI host adapter device from the list. All communications to the new disk array controller will be via the SCSI host adapter you select.
The parent SCSI host selected on the prior screen.
The SCSI ID Connection location through which the SCSI host adapter will communicate with the new disk array controller.
Allows you to delete all logical devices associated with the selected subsystem.
If you select yes, the selected disk array router and its associated disk array controllers and hdisks will no longer be available to the system but will remain defined in the database.
If you select no, the selected disk array router and its associated disk array controller and hdisks will no longer be available to the system and it will also be deleted from the system database.
Typically, the selection should be yes unless the disk array subsystem is being removed permanently.
Allows you to configure a system defined disk array controller. When a device (for example, disk array controller) is defined, an instance of that particular device is recorded in the customized configuration database. All of the device's attributes are known and recorded, but the device is not yet usable by the system. After the device is configured, it is said to be available.
Allows you to switch a particular disk group's LUN ownership from the selected disk array controller to the other disk array controller on the subsystem.
The disk array controller selected on the previous screen.
Allows you to create, service, and maintain the 7135 Disk Array hdisks for your system.
Lists all existing RAIDiant arrays associated with your system.
The specific logical device that you selected.
Use the Delete SCSI RAID Array option to delete logical units when you want to do the following:
Before deleting the logical unit, you must back up all data in all logical volumes and file systems on the logical unit and remove the logical unit from its volume group. Once the logical unit is deleted, you cannot access the logical unit; the data is lost.
Allows you to display or modify a specific RAIDiant disk drive.
This is primarily used to reconstruct a failed drive.
Allows you to create a RAIDiant array.
Select this to create a new LUN which will become part of an existing RAIDiant array . This new LUN uses the same set of drives and the same RAID level as the existing RAIDiant array. You should create more than one logical unit in an existing RAIDiant array only if creating a single logical unit would exceed the maximum logical unit size your system can support.
Select the desired logical device from the list.
Select the desired logical device from the list.
The specific logical device that you selected.
This selection allows you to configure a system defined disk array controller. When a device (for example, disk array controller) is defined, an instance of that particular device is recorded in the Customized Configuration Database. All of the device's attributes are known and recorded, but the device is not yet usable by the system. After the device is configured, it is said to be available.
The specific logical device that you selected.
Allows you to display or modify parameters associated with a specific RAIDiant array.
Allows you to display or modify parameters associated with a specific RAIDiant array.
Allow you remove an existing RAIDiant array.
The current status of the drive you have chosen. Use the LIST feature to select the new status.
The disk array controller which is currently associated with managing this hdisk. If you desire to change control to the other disk array controller in this subsystem, please use the 'Change/Show Disk Array Ownership' option under the 'Disk Array Controller Configuration' menu.
Allows you to service and maintain your RAIDiant disk array controller configuration. This includes listing the current array controllers, adding newly added controllers, removing a subsystem, configuring a defined controller, changing controller settings, and changing disk array ownership between controllers.
Allows you to configure disk array elements of your RAIDiant system. This includes listing disk arrays, creating new disk arrays, changing settings for a disk array, deleting a disk array, and displaying or changing drive status.
Allows automatic I/O load balancing between the two controllers in a dual-active RAIDiant array. This option should never be used in a configuration where multiple hosts are doing I/O to the RAIDiant array.
Allows display or modification of disk array controller attributes.
The location code of this device.
The SCSI id of this device.
The user-defined location label for this controller. This can be any string of 255 characters or less and is used to help you find the controller.
This is the Fibre-Channel World Wide Name of the controller.
Use the options on this menu to service and maintain your RAID Subsystem.
Use the options on this menu to create, service, and maintain the disk array hdisks for your system.
Configures a system defined RAID controller. When a device is defined, an instance of that device is recorded in the Customized Configuration Database. All of the device's attributes are known and recorded, but the system cannot use the device until it is configured. After the device is configured, it is available.
Use the options on this menu to view and change the parameters associated with your RAID Controller.
Lists information about disk arrays and disk drives associated with your system.
Creates a disk array.
Deletes the selected disk array.
ATTENTION: Use with caution. Before you delete a disk array, you MUST back up all data in all logical volumes and filesystems on the disk array and remove the disk array from its volume group. Once the disk array is deleted, you cannot access it and the data is lost.
Configures a system defined disk array. When a device is defined, an instance of that device is recorded in the Customized Configuration Database. All of the device's attributes are known and recorded, but the system cannot use the device until it is configured. After the device is configured, it is available.
Use the options on this menu to view and change parameters associated with a specific disk array.
Reconstructs a failed disk that is part of a degraded disk array. You should replace the original failed disk with a new disk before you attempt this procedure.
Provides a menu of diagnostic and recovery options. Typically, you should invoke recovery options only if an error log entry has been detected or your controller has been replaced.
Use the options on this menu to transition a disk from array candidate to hot spare. A hot spare disk is used to automatically replace (and reconstruct) a failed disk in a redundant (RAID Level 5 or 10) disk array. Hot spare disks are useful only if their capacity is greater than or equal to that of the smallest capacity disk in an array that becomes degraded.
Displays the Vital Product Data about a particular disk, for example, model and serial number.
The number of contiguous Kbytes that are written to a single disk before switching to the next disk in the disk array. It provides the host with a method to tune data striping to the typical IO request size.
Use the options in this screen to select disks to be included in the new disk array. The screen might also list disks that are that are not currently available to be included in the array. These disks can be made available by using the "Create an Array Candidate pdisk and Format to 522 Byte Sectors" option in the PCI-X SCSI Disk Array Manager screen.
NOTE: Adding disks to an existing array results in performance that is not optimal because the new devices do not contain parity and the data will not be striped.
Select a RAID Controller from the list.
Upgrades the controller's microcode.
Prepares disks to use in disk arrays.
Use the options on this menu to add disks to an existing disk array.
NOTE: Performance will not be optimal. The new disks will not contain parity and the data will not be striped.
Use the options on this menu to view and manage disk drives.
Select one or more RAID Controllers from the list.
Select the desired logical device from the list.
The disks selected to be formatted to 522 bytes per sector and prepared to use in disk arrays.
The level of data protection; also, how data and parity are written to the disk array.
The name of the selected RAID Controller.
The name of the selected disk array.
The name of the selected disk or disks.
The name of the selected disk.
The name of the selected disk arrays.
The selected RAID Level.
The selected stripe size.
Select a disk array to delete.
ATTENTION: Use with caution. Before deleting the disk array, you MUST backup all data in all logical volumes and filesystems on the disk array and remove the disk array from its volume group. Once the disk array is deleted, you CANNOT access it and the data is lost.
Select a disk array.
Select array candidate pdisks to use in the new disk array.
The disks to be included in the array.
If the disk is a physical volume, this is its unique physical volume identifier. If the disk is not a physical volume, the value of this field is "none".
The depth of the command queue used for this disk array.
The capacity of the disk array. This value depends on the capacities of the disks included in the array and the level of array protection.
Select the desired logical devices from the list.
Use the options on this menu to view and change the parameters associated with a pdisk.
Use the options on this menu to transition a hot spare disk to an array candidate disk.
Formats disks to 512 bytes per sector. The disks will no longer be available to use in disk arrays.
Cleans up stale data in the Object Data Manager (ODM). You can select any missing pdisks that were once connected to a RAID controller and delete them from the ODM.
Select this option to display the vital product data for a pdisk.
The capacity of the selected disk.
The serial number of the selected disk.
The vendor and product ID of the selected disk.
The Service Level of the disk.
Certifies a disk.
Downloads microcode to a disk.
Formats 522 bytes per sector pdisks.
NOTE: To format AND prepare disks for use in disk arrays, run the "Create an Array Candidate pdisk and Format to 522 byte sectors" option in the PCI-X SCSI Disk Array Manager menu screen.
Formats 512 bytes per sector disks.
NOTE: These disks cannot be used in PCI-X SCSI Disk Arrays. To make them available, run the "Create an Array Candidate pdisk and Format to 522 Byte Sectors option" in the PCI-X SCSI Disk Array Manager menu screen.
Displays the microcode level of a disk.
Starts the SCSI Hot Swap Manager. This tool can do the following:
ATTENTION: Proceed with this function only if you are directed to from a service procedure.
Data in the controller's cache will be discarded. The system's filesystem may be corrupted. By proceeding, you will be allowing UNKNOWN data loss.
Use the following options on this menu for battery maintenance:
Displays the following rechargeable battery information for a selected RAID controller:
NOTE: Some rechargeable cache battery packs are negatively affected by higher temperatures and are prorated based on the amount of time they spend at various ambient temperatures.
Forces a controller rechargeable battery error. Forcing a cache battery error does the following:
Make sure that you have the correct type and quantity of cache battery packs to do the replacement on the selected controller. You must replace the cache battery pack in the selected controller to resume normal operations.
Forces battery packs into error state.
ATTENTION: This service function should be run only under the direction of the IBM Hardware Service Support.
Forcing a cache battery error does the following:
Make sure that you have the correct type and quantity of cache battery packs to do the replacement on the selected controller. You must replace the cache battery pack in the selected controller to resume normal operations.
Select the controller to configure.
Select the disk from the list.
Select the disks from the list.
Select the desired RAID controller bus from the list.
The RAID level indicates the way the array controller reads and writes data and parity to the disks. Select a RAID level from the list.
The location code format is AA-BB which indicates the location of the controlling adapter.
The location of the controlling adapter and the controller's SCSI bus that the device is attached to. The location code format is AA-BB-CC-S,L.
The AA-BB fields identify the location of the controlling adapter. The CC value identifies the controller's SCSI bus that the device is attached to. For a disk array, this value is "ff", which indicates a logical bus for RAID devices. The "S,L" values are the SCSI ID and LUN of the device.
The option to allow unknown data loss. Choose "yes" only if directed to from a service procedure. Data in the controller's cache will be discarded.
The serial number of the disk array.
Information about the disk array that might be important to the administrator or another user.
The current ODM status of the disk array. Possible values are "available", which indicates that the hdisk is configured in the system and ready to be used, and "defined", which indicates that the hdisk is defined to the system, but not configured.
Information about the disk that might be important to the administrator or another user.
The current ODM status of the disk. Possible values are "available", which indicates that the pdisk is configured in the system and ready to be used, and "defined", which indicates that the pdisk is defined to the system, but not configured.
The maximum amount of time the system will wait when formatting this device.
NOTE: Setting this value too short may prevent this device from completing a format, which may cause the disk to be unusable.
Enables the controller's cache after concurrently replacing the cache battery pack.
Indicates the current status of the adapter. Possible values are Available, indicating that the adapter is configured in the system and ready to be used, and Defined, indicating that the adapter is defined to the system but not configured.
Indicates the current operating mode of the adapter. Possible values are Standalone Adapter, Primary Adapter, Secondary Adapter, or Aux Write Cache Adapter.
Standalone Adapter indicates this adapter is running without a Dual Initiator High-Availability (HA) connection with another RAID controller. It may or may not have a connection with an Aux Write Cache Adapter.
Primary Adapter indicates this adapter is running in a Dual Initiator High-Availability (HA) connection with another RAID controller sharing a common set of disk expansion drawers. This adapter is performing direct management of the physical devices.
Secondary Adapter indicates this adapter is running in a Dual Initiator High-Availability (HA) connection with another RAID controller sharing a common set of disk expansion drawers. This adapter serves as a client of the Primary controller and does not perform reads or writes to devices directly.
Aux Write Cache Adapter indicates this adapter is providing a duplicate, non-volatile copy of write cache data of the RAID controller to which it is connected.
Indicates the preferred operating mode for this adapter when connected in a Dual Initiator High-Availability (HA) connection with another RAID controller. Possible values are Primary Adapter or No Preference.
Primary Adapter indicates this adapter should assume the role of Primary controller when connected in a Dual Initiator HA connection unless there are other reasons this adapter can not assume the primary role. This may be beneficial for performance and usability reasons.
No Preference indicates the adapter will determine Primary or Secondary role through a negotiation process during adapter boot.
The current operating mode of the adapter may be different than the preferred mode.
Indicates the mode for this adapter to operate in when connected to shared disk expansion drawers with another initiator. This should only be changed after reviewing the Multi-Initiator and High-Availability section in the IBM SAS RAID Controller Reference Guide for AIX.
Default indicates that this adapter may be run in a Dual Initiator High-Availability connection and coordinate the control of shared disk expansion drawers with the other controller.
JBOD Single Path HA indicates that this adapter must be run in a HA Two System JBOD configuration. The adapter will not perform any RAID function and the adapter's operation mode will be Standalone.
Identifies the serial number of the adapter.
Identifies the IEEE unique World Wide Identifier (WWID) or sometimes called World Wide Name (WWN) of this adapter.
Indicates if the HA link (or connection) between this adapter and another Dual Initiator High-Availability (HA) RAID controller is currently operational. Possible values are Yes or No.
Identifies the serial number of the attached Dual Initiator High-Availability (HA) RAID controller.
Identifies the IEEE unique World Wide Identifier (WWID) or sometimes called World Wide Name (WWN) of the attached Dual Initiator High-Availability (HA) RAID controller.
Indicates if the Auxiliary Write Cache (AWC) link (or connection) between this adapter and another AWC capable controller is currently operational. Possible values are Yes or No.
Identifies the serial number of the attached controller on the Auxiliary Write Cache (AWC) link.
Identifies the IEEE unique World Wide Identifier (WWID) or sometimes called World Wide Name (WWN) of the attached controller on the Auxiliary Write Cache (AWC) link.