zfs discuss - Jan 2008 - Order of operations w/ checksum errors

zpool status shows a few checksum errors against 1 device in a raidz1 3 disk
array and no read or write errors against that device. The pool marked as
degraded. Is there a difference if you clear the errors for the pool before you
scrub versus scrubing then clearing the errors? I''m not sure if the
clearing errors prior to a scrub will replicate out any bad blocks that were
identified as checksum errors previously that had since been cleared.
 
 
This message posted from opensolaris.org

Hello Kam,

Friday, January 25, 2008, 9:11:24 AM, you wrote:

K> zpool status shows a few checksum errors against 1 device in a
K> raidz1 3 disk array and no read or write errors against that
K> device. The pool marked as degraded. Is there a difference if you
K> clear the errors for the pool before you scrub versus scrubing then
K> clearing the errors? I''m not sure if the clearing errors prior to
a
K> scrub will replicate out any bad blocks that were identified as
K> checksum errors previously that had since been cleared.
K>  

It doesn''t mater - scrub won''t replicate any errors.
Now if these errors were correctable errors they were corrected by zfs
at the same time it discovered them.

Could you post zpool satus output?

-- 
Best regards,
 Robert Milkowski                            mailto:milek at task.gda.pl
                                       http://milek.blogspot.com