<div> </div>
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<div> ~]# ls -la /dev/sdd<br>brw-r----- 1 root disk 8, 48 Dec 14 12:27 /dev/sdd<br> ~]# ls -la /dev/sdc<br>brw-r----- 1 root disk 8, 32 Dec 14 12:27 /dev/sdc<br> ~]#</div>
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<div>looks like they got created yesterday when the server rebooted</div>
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<div> ~]# fdisk -l /dev/sdc</div>
<div>Disk /dev/sdc: 20 MB, 20971520 bytes<br>64 heads, 32 sectors/track, 20 cylinders<br>Units = cylinders of 2048 * 512 = 1048576 bytes</div>
<div> Device Boot Start End Blocks Id System<br> ~]#<br> ~]# fdisk -l /dev/sdd<br> ~]#<br></div>
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<div class="gmail_quote">On Wed, Dec 15, 2010 at 3:59 PM, James Courtier-Dutton <span dir="ltr"><<a href="mailto:james.dutton@gmail.com">james.dutton@gmail.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
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<div class="h5">On 15 December 2010 11:58, Oliver Howe <<a href="mailto:ojhowe@gmail.com">ojhowe@gmail.com</a>> wrote:<br>><br>><br>> I'm seeing the following error messages in my /var/log/messages file<br>
> regarding devices sdc and sdd but I dont see those devices when I do a df,<br>> or look in the mtab file<br>><br>><br>> Buffer I/O error on device sdc, logical block 11<br>> end_request: I/O error, dev sdc, sector 48<br>
> ..<br>> end_request: I/O error, dev sdd, sector 25382150136<br>> end_request: I/O error, dev sdd, sector 0<br>><br>> etc<br>><br>> but, I cant see these discs in /etc/mtab<br>><br>> ~]# grep sdc /etc/mtab<br>
> ~]# grep sdd /etc/mtab<br>> ~]#<br>> or by doing df<br>><br>> ~]# df | grep sdd<br>> ~]# df | grep sdc<br>><br>><br>> does that mean the error is referring to a disc that maybe is in the<br>
> attached disk array and is not being used?<br>> could this bring the system down if the disc failes totally?<br>><br><br></div></div>df only shows mounted devices.<br>sdd could be any block device. E.g. CDROM, USB stick, iPOD etc.<br>
<br>fdisk -l /dev/sdc<br>fdisk -l /dev/sdd<br><br>might give you some idea as to what sort of device it is.<br>But it will give bogus output if the block device does not have a<br>partition table.<br><br>ls -l /dev/disk/by-id<br>
<br>might give you an idea where the sdc and sdd came from.<br><font color="#888888">--<br></font>
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