Hello,

  and, to tell the rest, as both server options are not documented until now,
I quote my documentation from a PMR:

DEFRAGFSTRIGGER   0-99   dynamic server option
DEFRAGCNTRTRIGGER 0-99   dynamic server option

If

the percentage of free filesystem space is lower than (100-DEFRAGFSTRIGGER)

and

the percentage of container free space is lower than (100-DEFRAGCNTRTRIGGER),
where those percentages are calculated by 

fsfreespace / (fsfreespace + dedup/nondedup cntralloc space)

and

(cntrFree - pool unaccessible ) / ( cntrFree + dedup/nondedup cntrUsed )

If either threshold is met, then we'll look for containers with a fraglevel
higher than 80 to auto-defrag.


-- 
Michael Prix

On Wed, 2018-11-14 at 15:48 +0100, Uwe Schreiber wrote:
> Hi Erwann,
> 
> did you recently update to version 8.1.5.100, or was the convertion from
> sequ. Filepool to Directory Container Pool done using version 8.1.5.100?
> 
> Spectrum Protect server version 8.1.5 introduced automatic container
> defragmentation for directory-containers.
> The server checks for container fragmentation and automatically runs
> defragmentation for containers surpassing thresholds controlled by the
> DEFRAGCNTRTRIGGER and DEFRAGFSTRIGGER.
> 
> Regards Uwe
> 
> -----Ursprüngliche Nachricht-----
> Von: ADSM: Dist Stor Manager <ADSM-L@VM.MARIST.EDU> Im Auftrag von Erwann
> SIMON
> Gesendet: Mittwoch, 14. November 2018 15:26
> An: ADSM-L@VM.MARIST.EDU
> Betreff: [ADSM-L] Move Container (Automatic) filling up the directories
> 
> Hi all,
> 
> I'm using Directory Container Pools on a couple of servers. Servers are at
> 8.1.5.100 level.
> 
> Those servers were using legacy File Pools with deduplication enabled that
> have been converted into Directory Container Pools.
> 
> I'm seeing a lot (a lot !) of Move Container (Automatic) that fills up my
> directories (free space is occupied by Containers in Pending State). Those
> Containers in Pending State can be as many as the ones in ReadWrite State
> (reusedelay is set to 4 days). Is there a mean to have more control on this
> ?
> 
> Another strange observation regarding fragmentation evaluation.
> 
> 13.11.2018 13:09:55     ANR4392I CONTAINER DEFRAGMENTATION started
> processing stgpool PRIM_CONTAINER. Containers are only using 98.12% of
> 150053.46 GB due to fragmentation.  (PROCESS: 14462)
> 
> and one hour later, fragmentation is higher (with no other process, such as
> Expire Inventory, that have run) :
> 
> 13.11.2018 14:08:34     ANR4392I CONTAINER DEFRAGMENTATION started
> processing stgpool PRIM_CONTAINER. Containers are only using 97.00% of
> 149378.75 GB due to fragmentation.  (PROCESS: 14516)
> 
> 

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