ATTO Technology Diamond Storage Array VT-Class - Manual (Page 54)

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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual
software. The remaining four characters will be entered
by the system automatically to identify the tape number.
See Virtual Tape on page 49 and Optional Hot Spare Sled
on page 50 for more information and examples.
Note
The maximum number of tape volumes and
tape drives for RAID Level 5 is 30.
The maximum number of tape volumes and
tape drives for RAID Level 10 is 15.
Set syntax: set QuickTape [RAID5 | RAID10] [# tape
volumes] [# tape drives] <enabled> <barcode
prefix>
Requires a SaveConfiguration command
Get syntax: get QuickTape
RAID5ClearData
To Zero all drives and parity to make newly created
RAID5 groups ‘coherent’. The parameter ALL clears
data on all RAID5 groups present in the system. Must be
used at initial configuration to ensure parity is valid for all
drives in the RAID Level 5 group by setting all data and
parity to zero. Takes all LUNs offline automatically, then
brings them online. The operation takes 3-6 hours,
depending on drive capacity. Do not interrupt this
process. This is a destructive operation: all information
on these drives is lost. Applies to RAID5 only
Set syntax: RAID5ClearData [ALL | LUN]
Get syntax: DriveCopyStatus or RAID5ClearDataStatus
RAID5ClearDataStatus
Displays the status of RAID5 Clear Data processing. S
represents the sled number, D represents the drive
number. Applies to RAID5 only
Set syntax: RAID5ClearDataStatus
RAIDInterleave
Specifies the Interleave size (in 512 byte blocks) between
members of a RAID group. SPAN indicates that the
interleave size between drives in the group is the
minimum drive size of all members in the group.
RAIDInterleave options are 16, 32, 64, 128, 256 blocks
and span. Span is not available for RAID Level 5. For
RAID Level 10, choices are 16, 32, 64, 128, 256 or
SPAN. For RAID Level 5, choices are: 16, 32, 64, 128,
256.
Default: 128
Set syntax: set RAIDInterleave [1-256] [SPAN]
Requires a SaveConfiguration Restart command
Get syntax: get RAIDInterleave
RAIDHaltRebuild
Stops a RAID Level 5 or 10 rebuild that is in progress.
Immediate command: RAIDHaltRebuild [Sled Number]
RAIDManualRebuild
Initiates a manual rebuild of a RAID Level 5 or 10 LUN.
An error message is returned if the specified LUN is not
a RAID Level 5 or 10 LUN or if the sled number is not
available; no rebuild takes place. Applies to RAID Levels
1, 5 and 10 only
Set syntax: . RAIDManualRebuild . [LUN] . [Sled Number]
RAIDRebuildState
Sets the RAID Level 5 or 10 rebuild status of the specified
sled to OK, degraded or faulted.
Set syntax: . set RAIDRebuildState [Sled Number]
[Degraded | OK | Faulted]
RAIDRebuildStatus
Displays the RAID1, RAID 5 or RAID 10 Rebuild Status
Summary. If no RAID groups are defined, the header
information is displayed with no data. The status
summary contains the RAID1, RAID 5 or RAID 10. The
RAIDRebuildStatus command has no effect on the state
of any rebuild in progress.
Member index and the following fields in tabular form:
Status, Sled Number, Current LBA, Maximum LBA,
Status.
Get syntax: RAIDRebuildStatus
RAIDResumeRebuild
Resumes a RAID Level 5 or 10 rebuild which had been
previously stopped.
Immediate command: RAIDResumeRebuild [Sled
Number]