Quote:
Originally Posted by Impotence
Could you explain why LVM renders journals useless? I'm having a hard time trying to work out why... and unfortunately nobody i have asked knows enough about it to have heard about that problem :/
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On closer look, this was a problem specific to EXT3 and it seems to have been fixed in 2.6.18 kernels and later, and possibly even backported into earlier kernels. I ran into that problem on RHEL 4, as it used a 2.6.9 kernel. XFS seems to uneffected by this issue in either case, though it will automatically disable write barriers if it detects that its running on LVM. See here:
SGI - Developer Central Open Source | XFS