disk crashes provoked by tahoe-lafs?

[Greg Troxel]

I run tahoe servers on 4 systems in a private grid.  The grid is not
used much, but I run deep-check --repair --add-lease every week or so,
when I remember.  The nodes all have lease expiration turned on, but are
quite unfull.  All are running NetBSD, some -5, some -6.  I do not have
these filesystems mounted noatime.

3 of these nodes are physical machines, with 3 kinds of disks.  All have
turned up bad blocks.  The 4th is a Xen domU; the dom0 is RAID-1.  One
of the dom0's disks also had some bad blocks.  This is a notable
cluster; disk failures are otherwise relatively rare.

So I really wonder if the lease checking code, or something, is churning
the disk.

Has anyone else seen this?
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