On vrijdag, feb 28, 2003, at 17:14 Europe/Amsterdam, Farren Minns wrote:
Hi Again
Regarding the TSM DB, wouldn't the 'Used' and 'Total Usable Pages'
figures
help to point to a fragmentation problem.
The output fro our DB is as follows:-
Available Space (MB): 10,000
Assigned Capacity (MB): 8,500
Maximum Extension (MB): 1,500
Maximum Reduction (MB): 1,492
Page Size (bytes): 4,096
Total Usable Pages: 2,176,000
Used Pages: 1,787,528
Pct Util: 82.1
Max. Pct Util: 82.5
Physical Volumes: 2
Buffer Pool Pages: 32,768
Total Buffer Requests: 10,278,342
Cache Hit Pct.: 98.88
Cache Wait Pct.: 0.00
Our database is 8500Mb assigned, and 82.1% utilised. So how do the
figures
of '1,787,528 pages used' and '2,176,000 Usable Pages' work in this
case.
If we have used 81% percent of 8500, our usable pages should be much
lower
than used pages shouldn't it? Or am I missing something?
Thanks again
Farren Minns - John Wiley & Sons Ltd
1.788 / 2.176 ~= 0.82, so that sort of works out. Each db page is 4k in
size, so 2,176,000 * 4k = 8704000000 with will probably work out to
about 8.5G, zo no problem ther either. Oh and uasble = free + used ;-)
--
Met vriendelijke groeten,
Remco Post
SARA - Stichting Academisch Rekencentrum Amsterdam http://www.sara.nl
High Performance Computing Tel. +31 20 592 8008 Fax. +31 20 668 3167
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