Hi all.
A quick question about the checksum error detection routines in ZFS.
Surely ZFS can decide about checksum errors in a redundant environment but
what about an non-redundant one? We connected a single RAID5 array to a
v440 as a NFS server and while doing backups and the like we see the
"zpool status -v" checksum error counters increment once in a while.
Nevertheless the command keeps us telling that applications are not
harmed. How can ZFS detect those? I assume it doesn't to verify after
write as it would kill performance. Is it cause by read errors that vanish
after re-trying the read? Would someone please explain how the mechanism
works in that case?
Of course in the meantime we attached another box in mirror configuration
;)
Thanks in advance
Thomas
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