[CentOS] Strangely slow disk

[Ilyas --]

Just check smart table:

smartctl -a -d ata /dev/sdX

Sometimes disk work very slowly without any visible reason. In this
case just replace your disk.



On Sun, Dec 4, 2011 at 4:46 PM, Timothy Murphy <gayleard at eircom.net> wrote:
> I have a 1.5TB Western Digital hard disk (WD15EADS-00R6B0)
> on my CentOS-5.7 server, which has become incredibly slow
> for some operations, eg rsync, BackupPC archive, e2fsck,
> although it seems to work fine for ordinary file operations,
> and "smartctl -a /dev/sdb" does not report any errors.
>
> For example, running "e2fsck -p /dev/sdb5" on a 250GB partition
> on this disk took over 24 hours to complete,
> as it did on another partition.
>
> I wonder if anyone can offer an explanation,
> or suggest a remedy?
>
>
> --
> Timothy Murphy
> e-mail: gayleard /at/ eircom.net
> tel: +353-86-2336090, +353-1-2842366
> s-mail: School of Mathematics, Trinity College Dublin
>
>
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