On May 18, 2009, at 4:04 PM, "P.A" <razor@xxxxxxxxxxx> wrote:
> 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.>What kind of RAID controller is it?
You might want to check to see if a USB memory stick is in a slot.
-Ross
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