Forum Discussion
mph999
13 years agoLevel 6
Some more details ...
In general, NetBackup can use any POSIX complaint file system as storage destination for Storage Units of the type BasicDisk and AdvancedDisk.
ZFS has two major POSIX Compliance Issues that will not be addressed by Sun in any release of ZFS.
The details are documented here: http://docs.sun.com/app/docs/doc/820-5245/gcukw?l=en&a=view
These two issues affect NetBackup as follows:
Issue 1: Inability to commit ZFS files system capacity statistics atomically
This affects the capacity managed storage units like AdvancedDisk. As capacity statistics are not available to operating system monitoring tools instantaneously, capacity managed storage units like AdvancedDisk cannot efficiently manage backup images and predict space availability.
ZFS has two major POSIX Compliance Issues that will not be addressed by Sun in any release of ZFS.
The details are documented here: http://docs.sun.com/app/docs/doc/820-5245/gcukw?l=en&a=view
These two issues affect NetBackup as follows:
Issue 1: Inability to commit ZFS files system capacity statistics atomically
This affects the capacity managed storage units like AdvancedDisk. As capacity statistics are not available to operating system monitoring tools instantaneously, capacity managed storage units like AdvancedDisk cannot efficiently manage backup images and predict space availability.
I would suggest you DO NOT use zfs. As the above snippet of TN explains it will NOT be addressed by Sun, there is nothing Symantec will be able to do.
I agree you see the problem in NetBackup, but NetBackup is not the cause of the problem.
Martin
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