[OpenIndiana-discuss] Mitigating the performance impact of scrub
pulaskite at yahoo.com
Fri Sep 28 12:36:54 UTC 2012
> I had to tune the other way to speed them up... Now
> resilvers and scrubs
> complete in a few hours.
I saw your blog. Nicely done.
Not sure I see an effective difference between a scrub that is run quickly once a month and a scrub that runs for a month w/ little performance impact on other usage. The interval between checks is the same. Scrubbing seems to me a perfect idle loop job.
Of course, faster resilvers are important if losing another drive will cause data loss. I'll see if I can get the scrubs down to under 6 hours in which case I can setup a monthly scrub w/ cron.
You're at the opposite end of the spectrum from me. I have infrequent batch jobs which take 8-12 hours to complete. At least they did last time. I'll have much more data on the next set of runs so it may take a lot longer this time. Probably time to parallelize the jobs.
More information about the OpenIndiana-discuss