ADSM-L

Re: [ADSM-L] Re: reclamation

2008-11-10 18:28:32
Subject: Re: [ADSM-L] Re: reclamation
From: David Bronder <david-bronder AT UIOWA DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 10 Nov 2008 17:27:24 -0600
Cheung, Richard wrote:
>
> Just to clarify - is that command going to permanently alter my stgpool
> reclaim thresholds??   Or is that the command to do a manual
> reclamation?  Why doesnt reclaim stgpool <tapepool> threshold=99 work?

Jim's command alters the storage pool settings for reclamation (for
the threshold and number of reclamation processes to run).

I'd guess that your "reclaim stgpool" command isn't working because
none of the volumes in that pool have 99% reclaimable space.  Your 86
tapes that are 99% utilized may not have any reclaimable space, or
may have some amount less than 99% reclaimable space.  In other words,
percent utilized is not the same as percent reclaimable.

You don't indicate how you consider a tape to be reclaimable.


> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Jim Neal
> Sent: Tuesday, 11 November 2008 9:33 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] reclamation
>
> Hi Richard,
>
>     I believe the command you want to use is:
>
> upd stg <tapepool> recl=99 reclaimpr=X (where x=number of reclaim
> processes
> to start).
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Cheung, Richard
> Sent: Monday, November 10, 2008 2:56 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: [ADSM-L] reclamation
>
> Hi..
>
> I have done some checks on my system on the Number of tapes to be
> reclaimed in my main tape pool, and discover the following:
>
> No of tapes awaiting reclamation at > 99% utilized = 86
> No of tapes awaiting reclamation at > 80% utilized = 51
> No of tapes awaiting reclamation at > 70% utilized = 36
> No of tapes awaiting reclamation at > 60% utilized = 23
> No of tapes awaiting reclamation at > 50% utilized = 2
>
> To facilitate this, I thought I would do some manual reclamations to
> clear the back log...
>
> However when I enter in
>
> Reclaim stgpool <tapepool> threshold=99 wait=no
>
> It tells me 'there is no data to be processed'
>
> Not sure why it would tell me that if there is supposedly 86 tapes at
> 99%> pct util awaiting reclamation?
>
> Any one has any suggestions?
>
> Richard
>


--
Hello World.                                    David Bronder - Systems Admin
Segmentation Fault                                     ITS-SPA, Univ. of Iowa
Core dumped, disk trashed, quota filled, soda warm.   david-bronder AT uiowa 
DOT edu

--
Hello World.                                    David Bronder - Systems Admin
Segmentation Fault                                     ITS-SPA, Univ. of Iowa
Core dumped, disk trashed, quota filled, soda warm.   david-bronder AT uiowa 
DOT edu