Re: [CentOS] Strangely slow disk

Ho Chaw Ming 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.

Check your bios, and make sure that you did not have IDE mode enabled and AHCI is selected .

Thanks for your response, and for the others received.

But I should have pointed out that the slow operation has only started recently, in the last week or so, after working normally since I acquired the disk a year or so ago.