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Re: [Networker] Benchmarking restores from Legato
2007-03-27 07:09:44
On Mar 27, 2007, at 3:17 AM, Lunsford, Damien [CCC-OT_IT] wrote:
No, that doesn't work.
The only practical way to do determine how long it takes to recover
your data is to actually recover the data, either to the same server,
but to a different file system on similar storage as the original
files or to a different server. If you tell the recover process to
effectively skip writing the data, then you end up skipping a lot of
the work that's involved with the recovery process. Going to /dev/
null, even if it did work, probably wouldn't yield meaningful results
because you are avoiding doing a lot of the processing that's
involved in data recovery.
A good deal of the time spent in the recovery process involves
creating the meta data that goes along with each item you recover, so
the only realistic way to see how long it takes to recover a file
system is to recover it when you don't need to access recovered data.
In Unix/Linux, you can simply do something like ...
time recover XXX
where XXX represents all the arguments you would need to do a non-
interactive recover.
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