In my experience yes - if you are doing long sequential writes, snapshot turns them into random IO. If you were doing short random writes to begin with, then snapshot should not have such a huge relative effect, because the non-snapshot performance is already slow.
Larry Dickson
I'm sure this has been covered before, but I didn't see it in the
archive: Is a near 90% drop in write performance "normal" snapshot
behavior? If so, :(
If not, are there any good resources I should be looking at? Every
search I perform comes up with one of two types of articles on the matter:
1) Snapshots are awesome! They let you...(list of really nifty things)
2) Snapshots suck! My system is completely useless while they're active!
--
Ryan Anderson
(901) 843 9300
Systems Engineer
WorldSpice Technologies
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