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126 Troubleshooting
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 Message: <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.
See the section "Physical Disk Management" on page 81 for more information
about Write-Through cache.
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.
Driver Does not Auto-Build into New Kernel
Issue: Driver does not auto-build into new kernel after customer updates.
Corrective Action: This error is a generic problem for Dynamic Kernel
Module Support (DKMS) and applies to all DKMS-enabled driver packages.
This issue occurs when you perform the following steps:
1
Install a DKMS-enabled driver package.
2
Run
up2date
or a similar tool to upgrade the kernel to the latest version.
3
Reboot to the new kernel.