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HP OpenVMS Systems Documentation |
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HP OpenVMS Version 8.3--1H1
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Modifies the attributes of existing units.
SET UNIT <unit_n> / <qualifiers>
unit_n
The unit number can be in the range of 0-31.
/ADG
Specifies that the RAID type for the existing unit is Advanced Data Guard (ADG). Use only with the /MIGRATE qualifier to migrate from any existing RAID level to ADG./CACHE
Specifies whether to use the controller's cache for the unit. Caching is On by default. To disable caching, use the /NOCACHE qualifier to the SET UNIT or ADD UNIT command./DISK
Specifies the disks to be used to form the unit. Multiple disks must be enclosed in parentheses. Use only with the /EXPAND qualifier to expand the disks used by the existing unit, as shown in the following format:
/DISKS=(disk-numbers[,...])
Note
The /DISK qualifier can only be used with the /EXPAND qualifier./EXPAND
Allows the specified logical unit and all units in the disk/disk group to utilize more disks. The /EXPAND qualifier does not increase the size of the logical unit; rather, it adds more disks and increases space on individual disks.To increase the size of the logical unit use the /EXTEND qualifier after you expand the unit.
During expansion of units in a drive group, the RAID level of certain units might change. For example, if a RAID 1 unit with 2 disks is expanded to 3 disks, then the RAID level must change to RAID 5 because the RAID 1 unit does not support an odd number of disks.
When you expand a unit with other units present on the same set of drives, all units undergo volume expansion. Use the following format:
SET UNIT <unit_n>/EXPAND/DISKS=<disk range>
Note
The value for disk range must include both pre-expansion disks and the additional disks, for example, 101, (101,112,314, ...).
Only the /DISK qualifier should be used with the /EXPAND qualifier.
Note
The /EXTEND, /EXPAND, and /MIGRATE qualifiers can be used only with the SET UNIT command to change the attributes of an existing unit./EXTEND
Increases the size of an existing logical unit. To specify a new size for the unit, use the /SIZE qualifier along with the /EXTEND qualifier. The size specified must be greater than the current unit size. When extending a unit with other units present on the same set of drives, some units might be moved (that is, undergo volume expansion) to make space for the additional size required.Note that even though the SET UNIT/EXTEND command increases the unit size, you complete other command completing successfully, the increased size takes effect only after you complete other steps (such as SET VOLUME/EXTENSION) successfully at the DCL prompt. For more information, see the HP OpenVMS System Manager's Volume 1: Essentials manual.
Use the following format:
SET UNIT <unit_n> /EXTEND/SIZE=value
Note
The /EXTEND, /EXPAND, and /MIGRATE qualifiers can be used only with the SET UNIT command to change the attributes of an existing unit./IDENTIFIER
Specifies the unit number to be used by OpenVMS. The value of the identifier is between 0 and 9999.
Note
The /IDENTIFIER qualifier is not required for Smart Array controllers./JBOD
Specifies the RAID type to be JBOD. This is synonymous with RAID 0./MIGRATE
Migrates the fault tolerance (RAID) level or stripe size, or both, of an existing logical unit. When migrating a unit with other units present on the same set of drives, some units might undergo volume expansion.
SET UNIT <unit_n>/MIGRATE [/RAID_LEVEL=R] [/STRIPE_SIZE=S]where unit_n = (0-31), R=(0,1,5), and S =(8,16,32,64,128,256)
Note
The /ADG or /JBOD qualifier can also be used instead of the /RAID_LEVEL qualifier.
Only RAID level and stripe size can be modified using the /MIGRATE qualifier.
Cannot migrate any RAID units (RAID 1, RAID 5 and so on) that have spare disks to RAID 0 or JBOD units.
Note
The /EXTEND, /EXPAND, and /MIGRATE qualifiers can be used only with the SET UNIT command to change the attributes of an existing unit./RAID_LEVEL=level
Specifies the RAID type of the unit. The supported values for this qualifier are 0 (data stripe), 1 (disk memory), and 5 (data striping with striped parity).
Note
The /RAID_LEVEL qualifier can be used only with the /MIGRATE qualifier.See the following example for the correct format:
/RAID_LEVEL=[(0 | 1 | 5 )]/SIZE=size
Specifies the new size of a unit.Use the following format:
/SIZE=size (GB | MB | KB | %)
Note
The /SIZE qualifier can only be used with the /EXTEND qualifier./SPARE
/SPARE specifies the disks to be designated as the spare disks. Multiple disks must be enclosed in parentheses. Assigning a spare disk to an unit in a drive group will assign the spare disk to all the configured units in the drive group. If an unit is created on a disk group to which a spare disk is assigned, then the spare disk will be configured to the new unit (if it is not a RAID 0 unit). One spare disk can be assigned to multiple drive groups. Ensure that the size of the spare disk is at least equal to the size of the smallest drive in the drive group.See the following example for the correct format:
/SPARE=(disk_number[,...])/STRIPE_SIZE=size
Specifies the new stripe size for a given RAID volume. Stripe size must be one of the following values: 8, 16, 32, 64, 128, and 256. Raid 5 and ADG are limited to a maximum 64 KB stripes.
Note
The /STRIPE_SIZE qualifier can be used only with the /MIGRATE qualifier./VERBOSE
Provides logging that can be interpreted by engineering.
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MSA> SET UNIT 0/CACHE
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This command modifies unit 0 and enables the use of the array accelerator for unit 0.
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SET UNIT 0/EXPAND/DISK=(0,1,2,3)
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This command increases the number of disks used by unit 0 and all the other units on the disk group.
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MSA> SET UNIT 0/SPARE=(100,101)
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This command specifies that unit 0 and all the other units on the disk group are spares.
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MSA> SET UNIT 0/MIGRATE/RAID_LEVEL=1/STRIPE_SIZE=64
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This command migrates the RAID level and the stripe size to 64 KB.
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MSA> SET UNIT 0/EXTEND/SIZE=6GB
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This command increases the size of unit 0 to 64 KB.
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MSA> SET UNIT 0/ID=100
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This command sets the identifier for unit 0 to 100.
SHOW CONNECTIONS / <qualifiers>
Displays the worldwide name, connection name, and profile of each host bus adapter (HBA) attached to the controller. If connections between the HBAs and the MSA utility have been given user-defined names, these names are also displayed.
Note
The SHOW CONNECTIONS command is applicable only to the MSA utility and not Smart Array controllers.
Use the SHOW CONNECTIONS command to verify that all connections to the MSA utility are recognized and defined.
None
/VERBOSE
Provides logging that can be interpreted by engineering.
MSA> SHOW CONNECTIONS
Connection Name: abc
Host WWNN = 50060b00-001d25b5
Host WWPN = 50060b00-001d25b4
Profile Name = Default
Unit Offset = 0
Controller 1 Port 1 Status = Online
Controller 2 Port 1 Status = Online
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This command shows the name of a specific connection to display.
Displays information about the specified controller. If the controller name is not provided, then information of all the connected controllers is displayed.The SHOW CONTROLLER command is synonymous with the SHOW ADAPTER command.
Note
If the context is set to a specific controller and the controller name is not provided, then SHOW CONTROLLER displays information about only the controller to which the context is set.
SHOW CONTROLLER (controller_name:) / <qualifiers>
controller_name:
/BUS
Displays the bus number of the controller./BRIEF
Displays limited information about the controller./DEFAULT
Displays information about the default controller./NODEFAULT
Displays information about all the controllers./FULL
Displays extensive information about the controller./REVISION
Displays the firmware version of the controller, along with the default information for the controller./SUBSYSTEM
Displays the subsystem ID of the controller./VERBOSE
Provides logging that can be interpreted by engineering.
MSA> SHOW CONTROLLER
A default controller is not set. All matching controllers
displayed
Controller: _$1$GGA201:
MSA1000 (c) COMPAQ P56350B9IN2021 Software 4.42
Controller Identifer: 201
NODE_ID = 500805f3-0001b660
SCSI_VERSION = SCSI-3
Supported Redundancy Mode: Active/Standby
Current Redundancy mode: Active/Standby
Current Role: Standby
Device Port SCSI address 6
Host Port_1:
REPORTED PORT_ID = 500805f3-0001b669
PORT_1_TOPOLOGY = Not available to this program
Cache:
102 megabyte read cache 154 megabyte write cache
Cache is GOOD, and Cache is enabled.
No unflushed data in cache.
Battery:
Battery is fully charged.
Controller: _$1$GGA300:
MSA CONTROLLER (c) HP P56350GX3QN152 Software 6.72
Controller Identifier: 300
NODE_ID = 500508b3-00905ed0
SCSI_VERSION = SCSI-3
Supported Redundancy Mode: Asym Active/Active Active/Standby
Current Redundancy mode: Asymmetrical Active/Active
Current Role: Active
Device Port SCSI address 7
Host Port_1:
REPORTED PORT_ID = 500508b3-00905ed1
PORT_1_TOPOLOGY = Not available to this program
Cache:
128 megabyte read cache 128 megabyte write cache
Cache is GOOD, and Cache is enabled.
No unflushed data in cache.
Battery:
Battery is fully charged.
Controller: _$1$GGA301:
MSA CONTROLLER (c) HP P56350GX3QN0FS Software 6.72
Controller Identifier: 301
NODE_ID = 500508b3-00905ed0
SCSI_VERSION = SCSI-3
Supported Redundancy Mode: Asym Active/Active Active/Standby
Current Redundancy mode: Asymmetrical Active/Active
Current Role: Active
Device Port SCSI address 6
Host Port_1:
REPORTED PORT_ID = 500508b3-00905ed9
PORT_1_TOPOLOGY = Not available to this program
Cache:
128 megabyte read cache 128 megabyte write cache
Cache is GOOD, and Cache is enabled.
No unflushed data in cache.
Battery:
Battery is fully charged.
Controller: _$1$GGA1002:
MSA1000 (c) COMPAQ P56350A9IMN06M Software 4.42
Controller Identifier: 1002
NODE_ID = 500805f3-0001b660
SCSI_VERSION = SCSI-3
Supported Redundancy Mode: Active/Standby
Current Redundancy mode: Active/Standby
Current Role: Active
Device Port SCSI address 7
Host Port_1:
REPORTED PORT_ID = 500805f3-0001b661
PORT_1_TOPOLOGY = Not available to this program
Cache:
102 megabyte read cache 154 megabyte write cache
Cache is GOOD, and Cache is enabled.
No unflushed data in cache.
Battery:
Battery is fully charged.
Adapter: _PKD0:
SA6400 (c) HP P57820FDAPHJE7 Software 1.92
SCSI_VERSION = X3.131:1994 (SCSI-2)
Not currently Redundant
Current Role: Active
(No redundant controller installed)
Cache:
128 megabyte read/write cache
Cache is not configured, and Cache is disabled.
No unflushed data in cache.
Battery:
Battery is not fully charged.
Adapter: _PKE0:
SA6400 EM (c) HP P577C0EDAPH3JK Software 1.92
SCSI_VERSION = X3.131:1994 (SCSI-2)
Not currently Redundant
Current Role: Active
(No redundant controller installed)
Cache:
128 megabyte read/write cache
Cache is not configured, and Cache is disabled.
No unflushed data in cache.
Battery:
Battery is not fully charged.
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This command displays information about all the controllers because a
default controller has not been set.
SHOW DISKS
Displays the following information on all available physical disks: disk number, enclosure bus number and ID, disk size, unit created on the disk, and disks assigned as spares.
Note
This command can be used to view information about a particular disk.
For the Smart Array P400 series of controllers, the target ID, connector, and bay are also displayed.
SHOW DISKS / <qualifiers>
None
/AVAILABLE
Lists all the disks on which there are no units configured./FULL
Displays the drive model and the drive serial number in addition to the disk information.
Note
For the Smart Array P400 series of controllers, the following information is displayed:
Connector Location Connector Enclosure Bay WWID Device Type Disk Capacity Device Status Device Vendor ID Device Product ID Device Serial Number Device Firmware Version Reserved Area (cfg/status information) Block Size (bytes/sector) M&P Data Stamped Last Failure Reason Physical Disk Flags/MEMBER
Displays the disks on which the units are configured./SPARE
Displays the disks that are configured as spares for logical units./VERBOSE
Provides logging that can be interpreted by engineering.
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MSA> SHOW DISKS
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This command displays information about all available disks.
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MSA> SHOW DISK/SPARE
MSA> SHOW DISK/AVAILABLE
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These commands display information about designated spare disks and all available disks on which no units are configured.
Displays the following global parameters for the specified controller: system name, rebuild and expand-priority settings, and read and write cache settings.
SHOW GLOBALS / <qualifiers>
None
/BRIEF
Displays the global parameters information about the controller./FULL
Displays the WWID information in addition to the global parameters./VERBOSE
Provides logging that can be interpreted by engineering.
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MSA> SHOW GLOBALS
Global Parameters:
System Name: ABC
Rebuild Priority: high
Expand Priority: high
Total Cache: 256MB
50% Read Cache: 128 MB
50% Write Cache: 128 MB
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This command displays the global parameters for the controller.
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MSA> SHOW GLOBALS/FULL
MSA> SHOW GLOBALS/BRIEF
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These commands display the WWID parameters and the global parameters for the controller.
Displays all the profile names.
SHOW PROFILE [profile_name] / <qualifiers>
profile_name
Displays the specifed profile name.
/VERBOSE
Provides logging that can be interpreted by engineering.
MSA> SHOW PROFILE
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This command displays all profile names.
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