Hi Greig,
I have 1.5.10-1sec (which just came in a few days ago, I believe) and a
DEFSIZE of 200 MB:
[root@pc55 root]# dpm-qryconf
POOL classicSE DEFSIZE 200.00M GC_START_THRESH 0 GC_STOP_THRESH 0
DEFPINTIME 0 PUT_RETENP 86400 FSS_POLICY maxfreespa ce GC_POLICY lru
RS_POLICY fifo GID 0 S_TYPE -
CAPACITY 36.51G FREE 31.50G ( 86.3%)
pc30.hep.ucl.ac.uk /storage CAPACITY 36.51G FREE 31.50G ( 86.3%)
What do you mean by "garbage collection upper and lower bounds"?
cheers,
gianfranco
Greig A Cowan wrote:
> Gianfranco,
>
> What version of DPM are you running? What's the output of dpm-qryconf?
>
> For each pool in DPM you can define a minimum file size (i.e DEFSIZE
> 1000.00M). This is the minimum file size that is reserved when a file is
> stored in a pool. There was an issue with DPM a while ago where it would
> use up the DEFSIZE no matter the file size, meaning that the space was
> appeared as used. Of course, once the DPM garbage collection kicked in,
> then this 'used' space was returned. You can set the garbage collection
> upper and lower bounds using dpm-modifypool.
>
> I'm not saying this is the cause of the effect you are seeing, but it
> could be related.
>
> Cheers,
> Greig
>
> On Fri, 20 Oct 2006, Gianfranco Sciacca wrote:
>
>
>> Dear all,
>>
>> I've just noticed that dpm-qryconf was reporting 12.88GB free on a pool,
>> while the corresponding filesystem had 31.50GB free. I remembered having
>> this problem once in the past and it was cured after re-running YAIM. I
>> just re-ran YAIM and surely enough after this dpm-qryconf reports the
>> correct value of free disk.
>>
>> Looking at the gStat plots at
>> http://goc.grid.sinica.edu.tw/gstat/UKI-LT2-UCL-HEP/GIISQuery_Usage_store_.html
>> one can see a gradual overall raise of the "used" level over several
>> months, although it appears the real volume used is more or less
>> constant, as files are created and subsequently removed. (this
>> particular pool is for dteam and ops)
>>
>> Is this the correct way for DPM to work? Surely it can't be. What
>> happens if DMP thinks there are only 12 GB free on a pool (even though
>> over 30 GB are really free) and I try to copy 20 GB to it? Would this fail?
>>
>> Also: while YAIM is running I get this:
>> Starting Globus MDS (gcc32dbgpthr) [ OK ]
>>
>> However, half of the times, Globus MDS is not running after YAIM has
>> finished.
>>
>> cheers,
>> gianfranco
>>
>>
>
>
--
Dr. Gianfranco Sciacca Tel: +44 (0)20 7679 3044
Dept of Physics and Astronomy Internal: 33044
University College London D15 - Physics Building
London WC1E 6BT
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