Re: [Networker] Staging a portion of a saveset
2009-05-12 00:41:46
On 5/11/09 5:42 PM, Preston de Guise wrote:
On 12/05/2009, at 24:46 , Francis Swasey wrote:
I am dealing with the aftermath of a hardware issue that left me with
several clone tapes that were severely underutilized (less than 50 GB
used on an LTO-4 cartridge). Sadly, in trying to stage these small
fragments to better utilize the media, I am discovering (yet again)
that I am also staging large portions of other tapes that were fully
utilized and now they are going to be underutilized. I'm almost to
the point of scrapping the entire clone run from last week and start
over (which of course, I don't have the time to do).
Wouldn't it be really nice if NetWorker provided the capability to
stage just the portion of the SSID/CLONEID pair that was on a
particular tape volume to a new tape? I think it would be. Does
anyone else agree?
While the idea would be nice in theory, I think in practice it would be
a nightmare, and open NetWorker administrators (particularly
inexperienced ones) up to making some terrible mistakes.
To put a counter-argument, which may sound blunt or uncaring: IMHO if
you're worrying about media utilisation on individual tapes, your
company isn't providing sufficient budget for you. Obviously we have to
on an overall scale be congisant of the amount of media that we use
within backup, but I often find that wanting (or needing) to get to that
level of granularity comes from budgetary pressure to be miserly.
In general, I agree with you. This week, I got caught off guard, having used almost 3 months
worth of tapes in the past month, I find myself with too few tapes and an ordering process that
takes too long. So, I thought I'd stage the contents of the seven tapes that got clobbered by
last weeks tape drive fiasco and had less than 80% of raw (uncompressed) capacity used... to
get five of them back to use now.... oh well... silly me.
With LTO-4 media being under $40.00 each, it's not a game I will usually play -- just when I
have to (because I messed up and didn't catch how fast the Scratch pool was disappearing).
--
Frank Swasey | http://www.uvm.edu/~fcs
Sr Systems Administrator | Always remember: You are UNIQUE,
University of Vermont | just like everyone else.
"I am not young enough to know everything." - Oscar Wilde (1854-1900)
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