+1
Here is the situation:
Primary copy - main site
Secondary Copy - DR site
Tape Copy - DR Site
We are doing Aux copy from Primary > Secondary and Secondary > Tape
We got alot of errors reading chunks when doing Aux to Tape. we noticed that those jobs fail to restore from Secondary copy also , on Primary site , jobs can restore
Can i mark chunks/jobs as bad on secondary copy and have commvault recopy the jobs INCLUDING the bad chunks from Primary copy again and not save bad chunks due to dedup ?
+23
Hi
You should use a DDB verify operation (with option #2) to find and mark the bad blocks as bad, and then you can initiate a recopy operation. You want to do this as future auxcopies are likely to be unrestorable if they reference bad blocks - its not good enough to simply re-copy a job alone as it assumes the blocks are good and does not replace them.
If you suspect there are bad blocks on the primary copy you should verify that first
+1
if i mark job as bad on all copies will it mark its unique blocks bad also for future jobs?
+23
if i mark job as bad on all copies will it mark its unique blocks bad also for future jobs?
Unfortunately that wont do it - all it does is prevent it from being copied - besides, there might be other jobs relying on one or more of the blocks associated with this job that are good - you don't want to mark those bad. The best way is the one I mentioned, its exhaustive but it literally checks each block to make sure its good, and if not, it immediately stops de-duplicating against it to protect future jobs.
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