Richard, Your cache hit percentage is too low at 95.6 percent and as you
have pointed out, should be around 98 percent of above. To change the
percentage of your cache hits, increase by doubling, the size of your
BUFPOOL parameter in your dsmserv.opt file on your TSM server:
entry from my dsmserv.opt file:
BUFPOOLSIZE 16384
You should then wait a day or two and see what it rises to. Each time, you will need
to reset the associated statistics with
the "reset bufpool". You can then check your cache hit percentage using the "q db f=d"
command:
tsm: AFCOPS2>q db f=d
Available Space (MB): 13,172
Assigned Capacity (MB): 11,420
Maximum Extension (MB): 1,752
Maximum Reduction (MB): 1,780
Page Size (bytes): 4,096
Total Usable Pages: 2,923,520
Used Pages: 1,441,070
Pct Util: 49.3
Max. Pct Util: 50.1
Physical Volumes: 3
Buffer Pool Pages: 4,096
Total Buffer Requests: 31,549,306
Cache Hit Pct.: 98.94
Cache Wait Pct.: 0.00
Backup in Progress?: Yes
Type of Backup In Progress: Full
Incrementals Since Last Full: 0
Changed Since Last Backup (MB): 0.52
Percentage Changed: 0.01
Last Complete Backup Date/Time: 06/20/01 12:02:59
Hope this is what you were looking for... I suspect your TSM server is running a tad
slow... just don't overdo upping the
bufpool size and wait for at least a day to let the new bufpool size have a chance to
show a true value for the cache hit
percentage....
George Lesho
Storage/System Admin
AFC Enterprises
)))))))))
"Dearman, Richard" <[EMAIL PROTECTED]>@VM.MARIST.EDU> on 06/21/2001 11:04:01
AM
Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
cc:
Fax to:
Subject: Cache Hit Pct.
Anyone know of a good way to raise Cache Hit Pct to above 98%. I continue
to get 95.6% and I tried the performance tuning setting an still get cann't
get it above 98%. Tivoli manuals state that Cache Hi Pct should remain
above 98%.
Thanks
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