We're using this successfully
Each app in the cluster is its own node, with a dsm.opt file on a filesystem
that fails over with the app, plus one node each for the underlying machines.
Domain statements in the dsm.opt files restrict each node to its own disk.
dsm.sys is the same on all nodes in the cluster. I also specify a different
http port and tcpport for each node in the cluster ( I don't know that its
necessary, but it works :) ). There's a non-critical veritas app defined for
each application group which starts a dsmcad and dsmsched process for each app.
Only gotcha is the need to update the TSM password on all machines in the
cluster. I do this by copying the dsm.opt to /tmp and running dsmc q sess to
set the password, then change password expiry to a long time.
I've got one two node Solaris 2.6 cluster with 10 apps working this way.
Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia
>>> Jeff Bach <jdbach AT WAL-MART DOT COM> 18/07/2001 5:23:27 >>>
The parameter Servername in the dsm.sys file specifies which options to use.
You can specify this parameter in the dsm.opt file. I create two
directories with separate dsm.opt files and run the backups from separate
directories. The key is for this parameter in the dsm.opt file to point to
which parameters you want.
A better way might be to create a third nodename that backups up the data on
the whichever server is primary. Then when they fail over or whatever, it
doesn't have to be backed up again. I am not sure if this is a situation
with Veritas though.
Jeff Bach
Home Office Open Systems Engineering
Wal-Mart Stores, Inc.
WAL-MART CONFIDENTIAL
-----Original Message-----
From: Linda Seeba [SMTP:seeba AT US.IBM DOT COM]
Sent: Tuesday, July 17, 2001 11:03 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Backing up Shared Disks
My TSM server is AIX 4.3 and TSM 4.1.3.
My TSM client is Solaris 2.8 and TSM 3.7.1.2
I have a Veritas Cluster that has a shared disk to two servers. I
want TSM
to back up the disk wherever it is attached via the Virtual IP
Address. I
talked to TSM support and they said this wasn't supported but I
could try
having two stanzas in my dsm.sys file. The first would be for the
core
server and exclude the shared disks. The second stanza would be the
virtual
IP and would exclude the core system and backup the shared disk .
Naturally
they would have two different include/exclude files. I tried setting
this
up but when I run a backup it acts like it doesn't see the second
stanza.
Does anyone have this running? Any help would be greatly
appreciated. Here
is my dsm.sys file:
Servername usslad003
TCPServeraddress 192.168.13.21
COMMmethod TCPip
TCPPort 1500
NODename drlgws004
TCPCLIENTPort 1501
TCPCLIENTAddress 149.131.196.77
PASSWORDAccess generate
USERs root
Mailprog /usr/bin/mail root
COMPression NO
SCHEDMODe PRompted
Inclexcl /opt/tivoli/tsm/client/ba/bin/inclexcl.txt
MAXCMDRetries 4
RETRYPeriod 20
CHAngingretries 2
TXNBytelimit 25600
TCPWindowsize 640
LARGECOMmbuffers Yes
TCPBuffsize 512
*
*The location of these log files are the default settings and can be
changed to
*
* an alternative location if needed.*
*
SCHEDLOGname /opt/tivoli/tsm/client/ba/bin/dsmsched.log
SCHEDLOGRetention 10,d
ERRORLOGName /opt/tivoli/tsm/client/ba/bin/dsmerror.log
ERRORLOGRetention 10,d
*
****************************************************************************
***
******** Stanza to backup shared disks by virtual IP address
*****************
****************************************************************************
***
Servername usslad003
TCPServeraddress 192.168.13.21
COMMmethod TCPip
TCPPort 1500
NODename drlgws3N4_shared_disks
TCPCLIENTPort 1501
TCPCLIENTAddress 149.131.196.75
PASSWORDAccess generate
USERs root
Mailprog /usr/bin/mail root
COMPression NO
SCHEDMODe PRompted
Inclexcl
/opt/tivoli/tsm/client/ba/bin/inclexcl_shared.txt
MAXCMDRetries 4
RETRYPeriod 20
CHAngingretries 2
TXNBytelimit 25600
TCPWindowsize 640
LARGECOMmbuffers Yes
TCPBuffsize 512
*The location of these log files are the default settings and can be
changed to
*
* an alternative location if needed.*
SCHEDLOGname /opt/tivoli/tsm/client/ba/bin/dsmsched.log
SCHEDLOGRetention 10,d
ERRORLOGName /opt/tivoli/tsm/client/ba/bin/dsmerror.log
ERRORLOGRetention 10,d
Linda Seeba Phone: (314) 234-5190
I/T Specialist - Sr Fax: (314) 232-4581
IBM Global Services E-Mail:seeba AT us.ibm DOT com
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