Hi Koen,Debbie,

Our server is MVS V2.1.013 and DB size = 1072Meg
BUFPoolsize = 8192K
Cache Hit Percentage = 99.30%

Has anyone got a clear understanding as to how this 
percentage is calculated?

Thanks 
Christo Heuër
ABSA Group 
Johannesburg
South Africa
E-Mail: christoh AT absa.co DOT za

> Hi Debbie, you're not alone, we also have 2 servers with a bufpoolsize of
> 30720K with a cache hit of 97,59 and 93,08 after a week running. They
have
> databases of 4100M and 7000M. I stopped adding bufpoolsize since the gain
> in cachehit% was minimal, as you pointed out memorysize increases and i
was
> stil inside my backupwindow. To the other persons reacting on this topic
,
> could you please also give your databasesize (just the bufpoolsize is
> meaningles).
> Whit a bufpoolsize of 100k and a database of 1M (bufpool is 10% of
> database) you're cachehit% is a lot better than the same bufpoolsize with
a
> database of 100M (bufpoolsize is 0,1% of database)
> Greetings, Koen.