Hello Thomas,

Saturday, March 17, 2007, 11:46:14 AM, you wrote:

TN> On Fri, 16 Mar 2007, Anton B. Rang wrote:
>> It's possible (if unlikely) that you are only getting checksum errors on 
>> metadata. Since ZFS always internally mirrors its metadata, even on 
>> non-redundant pools, it can recover from metadata corruption which does not 
>> affect all copies. (If there is only one LUN, the mirroring happens at 
>> different locations on the same LUN.)

TN> I thought about that but looking at the NFS server the real data should be
TN> much much more than metadata so I would consider it unlikely. Also in the
TN> now redundant setup we see checksum errors on both attached RAIDs

TN> Any hints on how to track down the problem to the HBA, cables, RAID and so
TN> on? We see similar things on all our machines with few exceptions. Talking
TN> to local Sun folks we have been "warned" before that checksum errors will
TN> show up and that it's considered normal. Nevertheless I really want to
TN> know what they are about

I have an opened CR for months now about the same problem - lot of
CKSUM errors all seem to be only meta-data related which is highly
unlikely.

-- 
Best regards,
 Robert                            mailto:[EMAIL PROTECTED]
                                       http://milek.blogspot.com

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