Les Mikesell wrote at about 14:58:30 -0600 on Wednesday, March 9, 2011:
> On 3/9/2011 2:04 PM, Jeffrey J. Kosowsky wrote:
> >
> > On the NAS, I upgraded the kernel to a debian kernel, changed from
> > ext2 to lvm2, and changed from RAID1 to non-RAID (which together only
> > slightly affected NFS transfer speeds) - but again since the NFS
> > speeds are reasonable, can any of the changes on the NAS even be a
> > cause?
>
> I've seen big speed drops from lvm in some circumstances although
> everyone says there isn't supposed to be that much overhead.
>
Yes I saw that with snapshots but I removed the snapshots and that
didn't affect the BackupPC speed.
Also, since I'm running over NFS and the NFS speeds for read/write
seem "normal", I'm not understanding how lvm could be the issue in
this case.
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