I just had 1 disk fail, so I'm about to replace it:
- Cheat sheet on mdadm: http://www.ducea.com/2009/03/08/mdadm-cheat-sheet/
- HOWTO on replacing a failed drive: http://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array
[Edit: Success!]
Wednesday, November 23, 2011
Software RAID in Linux with mdadm
I run a RAID 1 (mirroring) with 2 disks. Cheap and simple. (And I don't have to fuck around with RAID card support under Linux.)
I just had 1 disk fail, so I'm about to replace it:
[Edit: Success!]
I just had 1 disk fail, so I'm about to replace it:
[Edit: Success!]
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Notes from the second time I did this:
ReplyDeleteBeware newer drives which have larger (4k) physical sector sizes. You can still set logical sector sizes to 512 bytes, but there are some performance penalties.
(Western Digital has a PDF talking about the larger sector sizes here . I haven't read through it. Hopefully it will quantify the performance penalties. I don't know how much I should care.)