Sonnet Fusion RAID Storage Systems Operation Manual page 75

Appendix A - CLI ASCII-Based Interface
• RGPrefetch
Sets the prefetch for all or for the specified RAID group.
This command will fail if the RAID group does not exist.
GroupName is the ASCII name of the RAID group for which
the parameter will apply.
set RGPrefetch [GroupName | all] [Value 0 to 6]
get RGPrefetch [GroupName | all]
• R GRebuild (Immediate)
Starts rebuilding the specified existing RAID Group. Optional
parameters MemberN specify the members to rebuild. If no
member is specified, all degraded members will be rebuilt.
Optional parameters BlockDevIDN allows an available block
device to be substituted for the RAID member currently
assigned to the Member Index. RAID 6 RAID groups can
rebuild two members using the optional and.
RGRebuild [GroupName] <Member1> <BlockDevID1>
<and> <Member2> <BlockDevID2>
• R GRecover (Immediate)
Provides mechanisms for assisting in the read-only access of
data in offline RAID groups. Specify rebuild if the RAID group
faulted while rebuilding. Basic forces a RAID group online
with only up-to-date members and returns check condition
on read errors. Extreme forces a RAID group online with older
members and replaces read error data with zeros. Disabled
turns off RGRecover for basic and extreme. Note: Before running
RGRecover, power off and power back on all drives in the affected
RAID group drives to ensure the drives are at a known state and
ready for data recovery.
RGRecover [GroupName] [rebuild | basic |
extreme | disabled]
• R GRecoverWithWrites (Immediate)
Performs the same functions as RGRecover, except writes to the
affected RAID group are allowed to occur normally. Note: Care
must be exercised to minimize write activity. Proceed with writes at
your own risk.
RGRecoverWithWrites [GroupName] [rebuild | basic
| extreme]
• R GResumeConversion (Immediate)
Continues the stopped conversion on the specified existing
RAID group.
RGResumeConversion [GroupName]
• R GResumeErase (Immediate)
Continues the erase on the specified existing RAID group.
RGResumeErase [GroupName]
• R GResumeInitialization (Immediate)
Continues the initialization on the specified existing RAID
group.
RGResumeInitialization [GroupName]
• RGResumeMediaScan (Immediate, Disabled on Error)
Resumes a media scan on the specified existing RAID group.
RGResumeMediaScan [GroupName]
• R GResumeRebuild (Immediate)
Resumes the rebuild(s) on the specified existing RAID group.
Optional parameter MemberIndex specifies the RAID member
whose halted rebuild will be resumed. For RAID 6 RAID groups,
if a MemberIndex is specified, all halted RAID members on
the span with that MemberIndex will resume as well. If no
MemberIndex is specified, all halted rebuilds on that RAID
group will be resumed.
RGResumeRebuild [GroupName] <MemberIndex>
• RGSectorSize
Sets the sector size of the specified RAID group. The desired
RAID group sector size must be evenly divisible by the sector
size of any member disk. 512 bytes is the default size for most
operating systems. Use 4KB sectors to enable large volume
support (greater than 2TB, up to 16TB) in Windows XP (32-bit).
set RGSectorSize [GroupName] [512-8192]
get RGSectorSize [GroupName]
• R GSpanDepth
Regulates the span depth on the specified existing new
RAID group for all RAID configurations except JBOD, which
implicitly supports spanning as members are added.
set RGSpanDepth [GroupName] [SpanDepth [1-16]]
get RGSpanDepth [GroupName]
• R GSpeedRead
Performs look-ahead during reads from RAID group member
disks for all or the specified RAID group. GroupName is the
ASCII name of the RAID group for which look-ahead reads will
be performed. Auto will choose the algorithm based on each
I/O command.
set RGSpeedRead [GroupName | all] [enabled |
disabled | auto]
get RGSpeedRead [GroupName | all]
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