[Veritas-bu] NetBackup 7.1 - Windows Slow duplication Tape to Tape
2015-01-29 07:30:00
-- How do I check for the -mpx on my bpduplicate? The entire job is run through
a GUI interface so I have never seen that option.
I first backup to tape and that is multiplexing so lots of jobs run at the same
time. Then, I start duplication from the current tapes to new tapes. For some
of the server images, it goes pretty quickly and I can actually watch the file
size go up as it duplicates.
Are you specifying -mpx on your bpduplicate? If you don't, the backups
will be "de-multiplexed" on the copies, which mean it will have to go
through the original tapes several times to pick out each backup image
individually. If you use -mpx, it'll grab all the backup images in one
pass and leave them multiplexed on the copies.
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