ADSM-L

Re: client session stopps with 'no space available in storage... and all successor pools'

2006-08-30 04:02:05
Subject: Re: client session stopps with 'no space available in storage... and all successor pools'
From: PAC Brion Arnaud <Arnaud.Brion AT PANALPINA DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 30 Aug 2006 09:58:49 +0200
Rainer,

Just found this technote :
http://www-1.ibm.com/support/docview.wss?uid=swg21079391 which refers to
ANS1311E and ANR0522W  problems, and states this possible reason :

- Cache is enabled on the disk storage pool that the TSM Client backup
data is being sent to, and cached data cannot be deleted quickly enough
to allow the backup data to be written to the disk storage pool. In this
case, update the storage pool so that cache is not enabled. 

Couldn't this be hurting you ?

Cheers


Arnaud 

************************************************************************
******
Panalpina Management Ltd., Basle, Switzerland, 
CIT Department Viadukstrasse 42, P.O. Box 4002 Basel/CH
Phone:  +41 (61) 226 11 11, FAX: +41 (61) 226 17 01
Direct: +41 (61) 226 19 78
e-mail: arnaud.brion AT panalpina DOT com
************************************************************************
******

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Rainer Wolf
Sent: Wednesday, 30 August, 2006 09:31
To: ADSM-L AT VM.MARIST DOT EDU
Subject: client session stopps with 'no space available in storage...
and all successor pools'

Dear TSmers,

this happens on tsm server 5.3.3.2 / solaris ,3494

and Clients: linux86 5.2.3.1 , linux86 5.2.3.0 , solaris 5.2.5.0 ,
solaris 5.2.2.6 , winnt 5.2.3.11

we have a strange problem with occasionly stopped client sessions with
the message 'no space available in storage pool BACKUPPOOL and all
successor pools' .
If this happens it happens withe clients running bigger transfers in
time and data - mostly on initial backups.
The data flow is set up as
random access disk pool -->  sequential file pool --> sequential tape
pool

It may happen that the first 2 stages are going to be full but the
tapepool always has free and usable scratch volumes available.

The question is : is this a bug at the server or do I have to change
something in the setups of the pools ?
The space in the random-access pools are normally migrating down to
about 50 % -- is it better to bring this down to 0% Usage as a daily
task ?

I thought that sessions that don't have enough space in the
backup/filepools would directly write to tape if it is needed.
But if this stopping happens it seems to be just happening on that long
and large running sessions starting to write on backuppool and then
switching to filepool ... it seems to be that there is no second
switching on the tapepool possible ?

I just checked the client-versions of all nodes where this happens and
all of them have 5.2.X.X ... so is it just a client-problem with the old
5.2.X.X clients ?

Thanks a lot in advance for any hints !
Rainer


tsm: TSM1>q actlog begint=-20 search=94090


Date/Time                Message
--------------------
----------------------------------------------------------
08/29/06   08:13:01      ANR0406I Session 94090 started for node
ULLI187.CHEMIE
                           (Linux86) (Tcp/Ip
134.60.42.187(1039)).(SESSION: 94090)
08/29/06   20:17:08      ANR8340I FILE volume
/tsmdata3/tsm1/file8/00006B4D.BFS
                           mounted.(SESSION: 94090)
08/29/06   20:17:08      ANR0511I Session 94090 opened output volume
                           /tsmdata3/tsm1/file8/00006B4D.BFS.(SESSION:
94090)
08/29/06   20:17:24      ANR8341I End-of-volume reached for FILE volume
                           /tsmdata3/tsm1/file8/00006B4D.BFS.(SESSION:
94090)
08/29/06   20:17:24      ANR0514I Session 94090 closed volume
                           /tsmdata3/tsm1/file8/00006B4D.BFS.(SESSION:
94090)
08/29/06   20:17:24      ANR0522W Transaction failed for session 94090
for node
                           ULLI187.CHEMIE (Linux86) - no space available
in storage
                           pool BACKUPPOOL8 and all successor
pools.(SESSION: 94090)
08/29/06   20:17:53      ANR0403I Session 94090 ended for node
ULLI187.CHEMIE
                           (Linux86).(SESSION: 94090)



tsm: TSM1>q actlog search=94086 begind=-2

Date/Time                Message
--------------------
----------------------------------------------------------
08/29/06   08:10:22      ANR0406I Session 94086 started for node
ULLI187.CHEMIE
                           (Linux86) (Tcp/Ip
134.60.42.187(1038)).(SESSION: 94086)
08/29/06   20:17:54      ANE4952I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects inspected:
1,458,833(SESSION: 94086)
08/29/06   20:17:54      ANE4954I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects backed up:
1,457,166(SESSION: 94086)
08/29/06   20:17:54      ANE4958I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects updated:
0(SESSION: 94086)
08/29/06   20:17:54      ANE4960I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects rebound:
0(SESSION: 94086)
08/29/06   20:17:54      ANE4957I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects deleted:
0(SESSION: 94086)
08/29/06   20:17:54      ANE4970I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects expired:
0(SESSION: 94086)
08/29/06   20:17:54      ANE4959I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of objects failed:
1(SESSION: 94086)
08/29/06   20:17:54      ANE4961I (Session: 94086, Node: ULLI187.CHEMIE)
Total
                           number of bytes transferred: 245.28
GB(SESSION: 94086)
08/29/06   20:17:54      ANE4963I (Session: 94086, Node: ULLI187.CHEMIE)
Data
                           transfer time:                112,550.97
sec(SESSION:
                           94086)
08/29/06   20:17:54      ANE4966I (Session: 94086, Node: ULLI187.CHEMIE)
Network
                           data transfer rate:        2,285.17
KB/sec(SESSION:
                           94086)
08/29/06   20:17:54      ANE4967I (Session: 94086, Node: ULLI187.CHEMIE)
Aggregate
                           data transfer rate:      5,913.70
KB/sec(SESSION: 94086)
08/29/06   20:17:54      ANE4968I (Session: 94086, Node: ULLI187.CHEMIE)
Objects
                           compressed by:                    0%(SESSION:
94086)
08/29/06   20:17:54      ANE4964I (Session: 94086, Node: ULLI187.CHEMIE)
Elapsed
                           processing time:            12:04:52(SESSION:
94086)
08/29/06   20:48:39      ANR0482W Session 94086 for node ULLI187.CHEMIE
(Linux86)
                           terminated - idle for more than 30
minutes.(SESSION:
                           94086)

The storage pools look like:

Storage         Device          Estimated       Pct       Pct     High
Low     Next Stora-
Pool Name       Class Name       Capacity      Util      Migr      Mig
Mig     ge Pool
                                                                    Pct
Pct
-----------     ----------     ----------     -----     -----     ----
---     -----------
BACKUPPOOL8     DISK                160 G      63.9      56.2       90
50     FILEPOOL8
FILEPOOL8       FILE8               405 G      76.2      77.5       90
70     TAPE_O262
TAPE_O262       3592             22,288 G      24.6      60.0      100
70



tsm: TSM1>q stg BACKUPPOOL8 f=d

                Storage Pool Name: BACKUPPOOL8
                Storage Pool Type: Primary
                Device Class Name: DISK
               Estimated Capacity: 160 G
               Space Trigger Util: 63.9
                         Pct Util: 63.9
                         Pct Migr: 56.2
                      Pct Logical: 99.4
                     High Mig Pct: 90
                      Low Mig Pct: 50
                  Migration Delay: 0
               Migration Continue: Yes
              Migration Processes: 1
            Reclamation Processes:
                Next Storage Pool: FILEPOOL8
             Reclaim Storage Pool:
           Maximum Size Threshold: No Limit
                           Access: Read/Write
                      Description:
                Overflow Location:
            Cache Migrated Files?: No
                       Collocate?:
            Reclamation Threshold:
        Offsite Reclamation Limit:
  Maximum Scratch Volumes Allowed:
   Number of Scratch Volumes Used:
    Delay Period for Volume Reuse:
           Migration in Progress?: No
             Amount Migrated (MB): 176,075.38 Elapsed Migration Time
(seconds): 16,556
         Reclamation in Progress?:
   Last Update by (administrator): xx
            Last Update Date/Time: 08/29/06   17:00:14
         Storage Pool Data Format: Native
             Copy Storage Pool(s):
          Continue Copy on Error?:
                         CRC Data: No
                 Reclamation Type:


tsm: TSM1>

tsm: TSM1>q stg filePOOL8 f=d

                Storage Pool Name: FILEPOOL8
                Storage Pool Type: Primary
                Device Class Name: FILE8
               Estimated Capacity: 405 G
               Space Trigger Util: 98.4
                         Pct Util: 76.2
                         Pct Migr: 77.5
                      Pct Logical: 99.9
                     High Mig Pct: 90
                      Low Mig Pct: 70
                  Migration Delay: 0
               Migration Continue: Yes
              Migration Processes: 1
            Reclamation Processes: 1
                Next Storage Pool: TAPE_O262
             Reclaim Storage Pool:
           Maximum Size Threshold: No Limit
                           Access: Read/Write
                      Description:
                Overflow Location:
            Cache Migrated Files?:
                       Collocate?: Group
            Reclamation Threshold: 100
        Offsite Reclamation Limit:
  Maximum Scratch Volumes Allowed: 200
   Number of Scratch Volumes Used: 155
    Delay Period for Volume Reuse: 1 Day(s)
           Migration in Progress?: No
             Amount Migrated (MB): 91,059.84 Elapsed Migration Time
(seconds): 2,587
         Reclamation in Progress?: No
   Last Update by (administrator): xx
            Last Update Date/Time: 08/30/06   08:08:01
         Storage Pool Data Format: Native
             Copy Storage Pool(s):
          Continue Copy on Error?:
                         CRC Data: No
                 Reclamation Type: Threshold


tsm: TSM1>q stg TAPE_O262 f=d

                Storage Pool Name: TAPE_O262
                Storage Pool Type: Primary
                Device Class Name: 3592
               Estimated Capacity: 22,288 G
               Space Trigger Util:
                         Pct Util: 24.6
                         Pct Migr: 60.0
                      Pct Logical: 97.1
                     High Mig Pct: 100
                      Low Mig Pct: 70
                  Migration Delay: 0
               Migration Continue: Yes
              Migration Processes: 1
            Reclamation Processes: 1
                Next Storage Pool:
             Reclaim Storage Pool:
           Maximum Size Threshold: No Limit
                           Access: Read/Write
                      Description:
                Overflow Location:
            Cache Migrated Files?:
                       Collocate?: Group
            Reclamation Threshold: 100
        Offsite Reclamation Limit:
  Maximum Scratch Volumes Allowed: 50
   Number of Scratch Volumes Used: 32
    Delay Period for Volume Reuse: 8 Day(s)
           Migration in Progress?: No
             Amount Migrated (MB): 0.00
Elapsed Migration Time (seconds): 0
         Reclamation in Progress?: No
   Last Update by (administrator): xx
            Last Update Date/Time: 08/29/06   16:33:34
         Storage Pool Data Format: Native
             Copy Storage Pool(s):
          Continue Copy on Error?:
                         CRC Data: No
                 Reclamation Type: Threshold




--
------------------------------------------------------------------------
Rainer Wolf                          eMail:       rainer.wolf AT uni-ulm DOT de
kiz - Abt. Infrastruktur           Tel/Fax:      ++49 731 50-22482/22471
Universitaet Ulm                     wwweb:        http://kiz.uni-ulm.de