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Hi recently I noticed in the messages log, the following
error May 18 15:59:52 mail kernel: sdb: assuming drive cache:
write through May 18 15:59:52 mail kernel: sdb : READ CAPACITY failed. May 18 15:59:52 mail kernel: sdb : status=0, message=00,
host=1, driver=00 May 18 15:59:52 mail kernel: sdb : sense not available. May 18 15:59:52 mail kernel: sdb: assuming Write Enabled May 18 15:59:52 mail kernel: sdb: assuming drive cache:
write through May 18 15:59:52 mail kernel: sdb:<3>Buffer I/O
error on device sdb, logical block 0 May 18 15:59:52 mail kernel: Buffer I/O error on device sdb,
logical block 0 May 18 15:59:52 mail last message repeated 5 times May 18 15:59:52 mail kernel: unable to read partition
table I’m not sure what sdb is since its not listed on my
partition table [root@mail srvadmin]# fdisk -l Disk /dev/sda: 109.1 GB, 109196476416 bytes 255 heads, 63 sectors/track, 13275 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot
Start
End Blocks Id System /dev/sda1
*
1
13 104391 83 Linux /dev/sda2
14 13275 106527015
8e Linux LVM [root@mail srvadmin]# df -h Filesystem
Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00
99G 42G 52G 45% / /dev/sda1
99M 44M 51M 47% /boot none
3.9G 0 3.9G 0% /dev/shm [root@mail srvadmin]# I looked at the hardware itself and all disk in this raid
system are fine, my question is, is this something I need to worry about and
what is causing this issue. Although everything looking fine, my messages log is full of
sdb complaints. |
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