An advanced file device is still considered a tape. The frob is that it's
accessible via 2 devices, one for reading and one for writing. As such, you
can perform both a read and a write at the same time. However, while they
should be queued, you won't be able to perform multiple concurrent read
sessions, whether that's for staging, restoring or cloning. I don't think one
process will pause while another takes over - the second process will just have
to wait until the first is done.
That's to the best of my knowledge, without specific testing, so I may be wrong.
Cheers,
Stuart.
________________________________
From: EMC NetWorker discussion on behalf of mark wragge
Sent: Tue 01/05/2007 12:00
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] disk backup questions??
Hi, I know that these questions have been covered before but i would like to
clarify a few features of advance file device disk backup.
How many savesets clone at a time for a single advanced file disk device?
When cloning is running can I perform a restore?
When staging is running can I perform a restore?
When staging is running can I perform cloning?
If I cant restore during staging/cloning then can I prioritize a restore so
that if cloning or staging is taking place, and I initiate a restore, then the
restore will start and the cloning /staging will pause.
Our Cloning is running at 10mb/sec from disk to tape? The speed does not
change no matter if the saveset contains one single file (exchange database) or
many files (fileserver).
Where is the speed restriction likely to be - the number of savesets that
clone at once; the read access from the disk; or the tape device (LTO Ultirum).
Thanks.
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