Oracle ZFS Storage Appliance: Performance Issue during Dedupv1 to Dedupv2 Migration after upgrade to OS8.7
(Doc ID 2306637.1)
Last updated on FEBRUARY 19, 2019
Applies to:Sun ZFS Storage 7120 - Version All Versions and later
Oracle ZFS Storage ZS5-2 - Version All Versions and later
Oracle ZFS Storage Appliance Racked System ZS5-2 - Version All Versions and later
Oracle ZFS Storage ZS4-4 - Version All Versions and later
Oracle ZFS Storage Appliance Racked System ZS4-4 - Version All Versions and later
7000 Appliance OS (Fishworks)
Issue after upgrade from 2013.06.05.4.2,1-1.1 (222.214.171.124) to 2013.06.05.7.4,1-1.1 (OS 8.7.4).
No data access from the Exadata system to the ZFS Storage.
Customer rebooted the head. The head took approx 4 hours to rejoin the cluster.
Deduplication was enabled on pool 'pool-0'.
Note: The deduplication algorithms have been changed in the OS 8.7.x Release ("deduplication version 2")
[ 2013.1.6.x and below used "deduplication version 1" ]
Pool status :
Application of optional deferred updates following upgrade to Oracle ZFS Storage Appliance Release OS 8.7.x
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