Re: AW: [ADSM-L] migration doesn't seem to be ending
2006-02-01 13:06:14
Thanks Thomas and Andy!
Andy Huebner wrote:
> Also, backups running during the migration time can prevent the pool from
> reaching 0. We use 1 to get around that problem.
>
> Andy Huebner
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
> Of Thomas Rupp
> Sent: Wednesday, February 01, 2006 8:41 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: [ADSM-L] AW: [ADSM-L] migration doesn't seem to be ending
>
> Hi,
>
> See http://people.bu.edu/rbs/ADSM.funcdir, keyword: MIGRATION
> Occurs with one process per node
> (regardless of the MIGPRocess value),
> choosing the node with the largest
> amount of data in the storage pool and
> moving *all* of that node's data
> before
> embarking upon the same processing for
> other nodes - or before again checking
> the LOwmig value.
> When you change the LOWMIG value TSM waits till it has moved *all* files of
> the
> node it is currently working on.
> So this might take some time if you have nodes with many, many files.
>
> HTH
> Thomas Rupp
>
> -----Ursprüngliche Nachricht-----
> Von: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] Im Auftrag
> von Timothy Hughes
> Gesendet: Mittwoch, 01. Februar 2006 15:34
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: [ADSM-L] migration doesn't seem to be ending
>
> Hello all,
>
> After viewing our Backup Disk Pool, I noticed that migration
> doesn't seem to be stopping. The below percentages don't seem
> right since I have the following settings. Anyone else see
> this as odd or am I missing something? If so what could be
> causing this?
>
> Thanks for any suggestions, help!
>
> update stgpool backuppool highmig=0 lowmig=0
>
> update stgpool backuppool highmig=70 lowmig=40
>
> Disk storage pools : BACKUPPOOL
>
> Storage Pool Name BACKUPPOOL
> Storage Pool Type PRIMARY
> Device Class Name DISK
> Estimated Capacity 1013760.0
> Space Trigger Util 17.6
> Pct Util 17.6
> Pct Migr 16.3
> Pct Logical 100.0
> High Mig Pct 70
> Low Mig Pct 40
> Migration Processes 14
> Next Storage Pool H3592POOL
> Maximum Size Threshold -
> Access READWRITE
> Description Disk Backup Pool
> Overflow Location -
> Cache Migrated Files? NO
> Collocate? -
> Reclamation Threshold -
> Maximum Scratch Volumes Allowed -
> Number of Scratch Volumes Used -
> Delay Period for Volume Reuse -
> Migration in Progress? NO
> Amount Migrated (MB) -
> Elapsed Migration Time (seconds) 632871
> Reclamation in Progress? -
> Last Update Date/Time 2006-01-31 11:00:14.000000
> Last Update by (administrator)
> Reclaim Storage Pool -
> Migration Delay 0
> Migration Continue YES
> Storage Pool Data Format Native
> Copy Storage Pool(s) -
> Continue Copy on Error? -
> CRC Data YES
> Reclamation Processes -
> Offsite Reclamation Limit -
> Reclamation Type THRESHOLD
>
> TSM 5.3.2.1
> AIX 5.3
> RS/6000
>
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