[CentOS] fixing partition alignment ?

Laurent Wandrebeck

l.wandrebeck at gmail.com
Wed Dec 12 15:36:55 UTC 2012


Hi there,

I've discovered that most of the hard drives used in our cluster got
misaligned partitions, thus crippling perfs. Is there any way to fix
that without having to delete/recreate properly aligned partitions, then
format it and refill disks ?
I'd be glad not to have to toy with moving several 10s of TB disk by
disk :D (most disks are JBOD as we're using a fault tolerant network
FS, moosefs not to name it).
<insert your favorite search engine> wasn't helpful, unfortunately.
Drives are ext4, driven by C6 x86_64.

Thanks,
Laurent.



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