ADSM-L

Re: [ADSM-L] Migration process

2007-04-10 19:36:52
Subject: Re: [ADSM-L] Migration process
From: Andy Huebner <Andy.Huebner AT ALCONLABS DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 10 Apr 2007 14:56:17 -0500
We run at 80/60.  Do you empty the pools during the day?  We run
migration each day until our disk pools are empty.

Andy Huebner

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Gregory Lynch
Sent: Tuesday, April 10, 2007 2:50 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Migration process

No,  caching is not enabled


***************************************************************
Gregory Lynch
Lead Programmer Analyst
IT Infrastructure/Systems Administration
Stony Brook University Medical Center
HSC Level 3, Room 121  ZIP 8037
Phone: 631-444-9783
Gregory.Lynch AT stonybrook DOT edu

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Skylar Thompson <skylar2 AT U.WASHINGTON DOT EDU>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
04/10/2007 03:46 PM
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


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ADSM-L AT VM.MARIST DOT EDU
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Subject
Re: [ADSM-L] Migration process






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


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