Re: [ADSM-L] Migration process

2007-04-10 15:45:45
Subject: Re: [ADSM-L] Migration process
From: Skylar Thompson <skylar2 AT U.WASHINGTON DOT EDU>
Date: Tue, 10 Apr 2007 12:45:15 -0700
Gregory Lynch wrote:
> Hello All,
> I have noticed that migration has been kicking off during the backup
> window and is slowing down the nightly backups. We have migration running
> during the day via an admin schedule for a hour, but the diskpool never
> seems to get below 70%.  I checked the properties of the diskpool and the
> thresholds were 90 and 70, which right off the bat I think is too high.
> What is the best practice for running migration. If it runs longer, will
> it interfere with other processes like reclamation during the day?

Do you have caching enabled? If you do, the utilized percentage will
report cached data as well. The migratable percentage will report data
that can actually be moved to tape, and that's the percentage that's
used for the threshold.

-- Skylar Thompson (skylar2 AT u.washington DOT edu)
-- Genome Sciences Department, System Administrator
-- Foege Building S048, (206)-685-7354
-- University of Washington School of Medicine