Hello Roger

I have seen it happen. We have collocate turned on for the tape storage pools. 
We had several clients that had very little in the way of changing data, with 
this usage pattern, we can see a filling tape that is mostly expired holes and 
it will reclaim. It does not happen very offen, but it does happen. 

len 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Roger Deschner
Sent: Tuesday, March 28, 2006 2:00 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Update - Tape problem after moving TSM to new server

I have never seen reclamation take a Filling volume. I thought the Big
Idea ever since the product was called WDSF was to fill up the Filling
volumes until they are Full, let expiration gradually eat holes in them,
and then reclaim them. What's the point in reclaiming a tape that isn't
full yet? Even with collocation, I don't get it. If it isn't full yet,
the only thing you should be doing to it is writing more data to it.

Roger Deschner      University of Illinois at Chicago     rogerd AT uic DOT edu
============= What if there were no rhetorical questions? ==============



On Mon, 27 Mar 2006, Richard Sims wrote:

>On Mar 27, 2006, at 1:56 AM, Rainer Wolf wrote:
>
>> Hi,
>>
>> Roger Deschner wrote:
>>
>>>
>>> 3. The Full tapes should reclaim themselves normally. However,
>>> reclamation will not select any tape that is still marked as
>>> Filling, so
>>> you've got to reclaim them manually yourself with MOVE DATA. Might
>>> take
>>> a while, which is OK as long as you don't run out of tapes.
>>
>> Is it true ?  I thought that reclamation can also affect
>> volumes in filling state - why not ?
>
>Reclamation operates on any usable volume, regardless of Full or
>Filling. Of course, when you get to the point of reclaiming Filling
>volumes, reclamation may not then be a productive thing to do.
>
>   Richard Sims
>