> Blindly, your bottleneck is DASD I/O....
>
> Look at your dasd performance, your cache statistics, your
> MDC Cache hits/misses, your wait states for your samba servers,
> channel utilization, type of channels, number of logical devices,
> and queues. And what is your CPU utilization? page rate?
> ("Seem to be OK" often isn't....)
>
> 20 MB/sec is about 5,000 I/O per second assuming 4K Blocks. How
> many logical devices? You are likely seeing very high connect
> times due to linux chaining I/O together, and 100% device utilization.
What SHOULD you get on a modern mainframe?
--
Cheers
John Summerfield
Microsoft's most solid OS: http://www.geocities.com/rcwoolley/
Note: mail delivered to me is deemed to be intended for me, for my disposition.
