Dear All,

I have just finished upgraded our company ADSM server to ADSM v3 but
when I started the nightly incrementals off the performance from our SP
nodes was terrible, a q sess showed they took nearly two hours to back
up 1G of data where they were getting over 5G per hour before.

The client nodes write straight to a large disk pool on the server (50G)

The client software was upgraded at the same time, I used the Tuning
Guide on the IBM storage website when creating the options files.

Also the q sess showed that the servers are spending a lot of time in
the recvw state which I do not remember happening before.

here are the options files I am using:

dsmserv.opt:
   COMMmethod TCPIP
   COMMmethod HTTP
   SHMPort 1510
   BUFPoolsize 32768
   TXNGroupmax 256
   VOLUMEHistory /adsm/volhist
   VOLUMEHistory /usr/lpp/adsmserv/bin/volhist
   DEVCONFIG /adsm/devconf
   DEVCONFIG /usr/lpp/adsmserv/bin/devconf
   TCPWindowsize 320
   MOVEBatchsize 1000
   MOVESizethresh 500

dsm.opt:
   SErvername      SPADSMSW
   LANGUAGE     en_GB

dsm.sys:
   * Connection to ADSM server via SP switch
   SErvername  SPADSMSW
      COMMmethod                TCPip
      TCPPort                   1500
      TCPServeraddress          spadsms.sp.cg.uk
      SCHEDMODe                 PRompted
      LARGECommbuffers          Yes
      TCPWindowsize             640
      TCPBuffsize               32
      TXNBytelimit              25600
      TCPNodelay                YES
      QUERYSCHedperiod          1

      NODename                  UXFINLIV
      PASSWORDAccess            Generate
      SCHEDLOGName              /adsm/log/dsmsched.log
      SCHEDLOGRetention         5
      INCLExcl                  /usr/lpp/adsm/bin/inclexcl
      PRESCHEDULECMD            "/usr/local/bin/pre_adsm"
      POSTSCHEDULECMD           "/usr/local/bin/post_adsm"

Any ideas on how to resolve this would be much appreciated as I have
been doing this upgrade for about 16 hours now. We had a lot of nodes to
upgrade!

Nolan Rogers
Cheltenham & Gloucester PLC
Gloucester
England

nolan_rogers AT hotmail DOT com

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