[mythtv-users] Software RAID and ionice
David Brodbeck
gull at gull.us
Tue May 29 17:27:26 UTC 2007
On May 24, 2007, at 3:32 AM, Richard Freeman wrote:
> Also - I'm still leery about xfs until I can find some documentation
> that clearly indicates that it doesn't zero out entire files if they
> were open when the system dies.
I have an XFS-based mythbox that's not on a UPS. I've never seen it
zero out an entire file, unless that file had just started recording
(less than a minute.) I've found XFS to be very robust in this
rather punishing application. I do find I need to run xfs_fsr weekly
to keep fragmentation at bay.
There *were* some problems specific to XFS+LVM+RAID running on
particular kernel stack sizes, though, so be careful. My system is a
straight single-disk system. I stopped using LVM a couple years ago
after some bad experiences with lost data -- in one case the entire
contents of a 1 TB RAID array.
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