Issues we have had using disk staing at 5.1MP4 include
   o disk staging jobs returning with errors if
      - no images are found (i.e. staging is complete)
      - an image listed for duplication is not found (maybe it was
expired during the staging activity)
      - configured to do more staging jobs concurrently than there are
drives available (continually produces jobs which fail in error).
   o Exchange backups failing because staging f/s runs out of space &
isn't cleared quickly enough (NBU clears the two oldest duplicated
images regardless of their size).  Not *proved* that this was the
problem...
   o Performance issues due to backup window overrun (out backups often
run on into the day) - and the disk array not being able to cope with
multiple writes and reads.  Still struggling with this one....

-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Justin
Piszcz
Sent: 20 June 2006 17:06
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Fronting backups with disk then bleeding off to
tape.


Does anyone do this with a massive amount of data?  Also, I noticed with

5.1MP4 its possible to use multiple streams to bleed from disk->tape but
I 
was wondering how well this worked practice.

How many people bleed off to tape using 5.1MPx?
Using 6.0?

How well does it work under 6 vs. 5? I know there is a watermark
feature. 
Also, how come when I bled data off to tape under 5.1MP4, it did not 
remove the images from disk?  Must I manually purge that data?

Thanks,

Justin.
_______________________________________________
Veritas-bu maillist  -  Veritas-bu at mailman.eng.auburn.edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu

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