hi tsm'ers,
my cachehit pct utilization sometimes drops to 96.7% and few times i see it
touches 99%. due to this i see slow in server process like migration and
expiration and sessions hanging for long period of time.
please advise me , how can i overcome this. I tried increasing the database
bufferpoolsize to the limit mentioned in admin guide. still i see the low
pct of cache hit. RAM size is 2GB.
your help in this regard is highly appriciated.
here is the output of q opt and q db f=d
tsm: ADSMSRV1>q opt
Server Option Option Setting Server Option Option Setting
----------------- -------------------- -----------------
--------------------
--------------------
CommTimeOut 6,000 IdleTimeOut 30
CommTimeOut 6,000 IdleTimeOut 30
BufPoolSize 262144 LogPoolSize 102400
MessageFormat 1 Language en_US
MaxSessions 25 ExpInterval 0
ExpQuiet No EventServerLoggi- Yes
ng
MirrorRead DB Normal MirrorRead LOG Normal
MirrorWrite DB Sequential MirrorWrite LOG Parallel
VolumeHistory /tsm/config/volhist- Devconfig
/tsm/config/devconf-
ory.dsm ig.dsm
TxnGroupMax 40 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 )
TCPPort 1500 HTTPPort 1580
HTTPSPort 1543 TCPWindowsize 0
TCPBufsize 16384 TCPNoDelay No
IPXSocket 8522 NetbiosBufferSize 16384
NetbiosSessions 25 LuName DSMSERV1
TPNProfilename TPNAME dsmserv
IPXBufferSize 4096 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
tsm: ADSMSRV1>q db f=d
Available Space (MB): 4,000
Assigned Capacity (MB): 3,516
Maximum Extension (MB): 484
Maximum Reduction (MB): 1,516
Page Size (bytes): 4,096
Total Usable Pages: 900,096
Used Pages: 141,089
Pct Util: 15.7
Max. Pct Util: 23.6
Physical Volumes: 4
Buffer Pool Pages: 65,536
Total Buffer Requests: 40,149,837
Cache Hit Pct.: 96.65
Cache Wait Pct.: 0.00
Backup in Progress?: No
Type of Backup In Progress:
Incrementals Since Last Full: 0
Changed Since Last Backup (MB): 147.12
Percentage Changed: 26.70
Last Complete Backup Date/Time: 12/14/01 10:45:42
thanks and regards
sreekumar.
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