Replace member errors
NOTE:
For more information about the Replace Member features, see
Source disk fails during replace member operation
Issue:
The source disk fails during the
Replace Member
operation.
Corrective Action:
If the source data is available from other disks in the virtual disk, the rebuild begins automatically on the target disk,
using the data from the other disks.
Target disk fails
Issue:
The target disk fails.
Corrective Action:
If the target disk fails, the
Replace Member
operation aborts.
General disk fails
Issue:
A general disk fails.
Corrective Action:
If the target disk fails and the
Replace Member
operation aborts but the source data is still available, then the
Replace Member
operation continues as
Replace Member
.
Linux operating system errors
Virtual disk policy is assumed as write-through error message
Error:
<Date:Time> <HostName> kernel: sdb: asking for cache data failed<Date:Time>
<HostName> kernel: sdb: assuming drive cache: write through
Corrective Action:
The error message is displayed when the Linux Small Computer System Interface (SCSI) mid-layer asks for
physical disk cache settings. The controller firmware manages the virtual disk cache settings on a per controller
and a per virtual disk basis, so the firmware does not respond to this command. The Linux SCSI mid-layer assumes
that the virtual disk's cache policy is
Write-Through
. SDB is the device node for a virtual disk. This value changes
for each virtual disk.
For more information about
Write-Through
cache, see
Virtual Disk Write Cache Policies
Except for this message, there is no effect of this behavior on normal operation. The cache policy of the virtual disk
and the I/O throughput are not affected by this message. The cache policy settings for the PERC SAS RAID
system remain unchanged.
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Troubleshooting
