Tune my TSM environment

[nourani]

Dear all,



First of all I would like to highlight that I'm very new to TSM; so, please bear with me.



I'm having a the following hw/sw config:

p670 server, running AIX 5.2 ML 5, connected to ESS via Fibre Channel with 13 Gb real memory and 5 X 1 Ghz processors



My network cards is running in Full duplex mode



# lsdev -Cc tape

rmt1 Available 3k-08-00-0,0 IBM 3580 Ultrium Tape Drive

rmt2 Available 3k-08-00-1,0 IBM 3580 Ultrium Tape Drive

smc0 Available 3k-08-00-5,0 IBM 3583 Library Medium Changer



with this driver: Atape.driver 7.1.5.0



I'm running a TSM server version 5 Release 1 Level 1.1



Some TS options would be:

tsm: TSM>q option



Server Option Option Setting Server Option Option Setting

----------------- -------------------- ----------------- --------------------

CommTimeOut 600 IdleTimeOut 15

BufPoolSize 672140 LogPoolSize 96000

MessageFormat 1 Language en_US

MaxSessions 25 ExpInterval 24

ExpQuiet No EventServer Yes

MirrorRead DB Normal MirrorRead LOG Normal

MirrorWrite DB Sequential MirrorWrite LOG Parallel

VolumeHistory /tsmshare/volhist.o- Devconfig /tsmshare/devconfig-

ut .out

TxnGroupMax 256 MoveBatchSize 40

MoveSizeThresh 500 StatusMsgCnt 10

RestoreInterval 1,440 UseLargeBuffers Yes

DisableScheds No NOBUFPREfetch No

AuditStorage Yes REQSYSauthoutfile Yes

SELFTUNEBUFpools- No SELFTUNETXNsize No

ize

DBPAGEShadow No DBPAGESHADOWFile dbpgshdw.bdt

QueryAuth None LogWarnFullPerCe- 90

nt

ThroughPutDataTh- 0 ThroughPutTimeTh- 0

reshold reshold

NOPREEMPT ( No ) Resource Timeout 60

TCPPort 1500 HTTPPort 1580

TCPWindowsize 0 TCPBufsize 16384

TCPNoDelay No CommMethod TCPIP

CommMethod ShMem CommMethod HTTP

MsgInterval 1 Enable3590Library No

ShmPort 1510 FileExit

UserExit FileTextExit

AssistVCRRecovery Yes AcsAccessId

AcsTimeoutX 1 AcsLockDrive No

AcsQuickInit No SNMPSubagentPort 1521

SNMPSubagentHost 127.0.0.1 SNMPHeartBeatInt 5

TECHost TECPort 0

Async I/O No Direct I/O Yes

SHAREDLIBIDLE No 3494Shared No

Enable3590Library No



My database files are as lister below:

-rw------- 1 root sys 2098200576 Mar 08 09:39 db5.dsm

-rw------- 1 root sys 2098200576 Mar 08 09:39 db4.dsm

-rw------- 1 root sys 2098200576 Mar 08 09:39 db3.dsm

-rw------- 1 root sys 2098200576 Mar 08 09:39 db2.dsm

-rw------- 1 root sys 2098200576 Mar 08 09:39 db1.dsm

-rw------- 1 root sys 1049624576 Mar 08 11:13 log.dsm



I hope I have provided enough info at this initial stage.



The problem is that I'm getting 18 Mb/s while doing local backups using shared memory and around 9 Mb/s using TCPip.



Can anyone please help me to improve this.



I would remind you that I have less than a basic knowldege of TSM. May be I would also request you to send me the commands to look for the required info.



Thanks in advance



Nourani

 

[fresh]

nourani,



What I see initially is that your option "SELFTUNEBUFpoolsize" is set to NO. What this setting does is increase the amount of RAM TSM uses if it needs it.



You can see what you currently have allocated by 'q status', you're looking for "BufPoolSize:" IBM recomends at least 256mb or 262,144 K if you have 1gb of RAM. You can modify the setting by 'setopt BUFPOOLSIZE <size>' I believe setting that is dynamic too.



You can see the performance of you database by 'q db f=d', you're looking for "Cache Hit Pct.:" if that number is lower then 99.00 then you're not configured properly.



That should improve things for you.