RE: SAN was RE: system p announcement (Crump, Mike)

["Walden H. Leverich" <WaldenL@xxxxxxxxxxxxxxx>]

> I know that might be difficult for non-IBM vendors but
> minimally I think that PT/400 needs to be able to integrate the SAN
> performance information.

The big problem with that is a san can have IOs from multiple systems on
a single drive array where PT400 can only see its own data. If I've got
an array w/a System i and SQLServer banging away on it (not saying it's
smart, but lets say I do) each system-specific view would show, say 50
IO/second, but only the SAN would know I was doing 100 IOs per second on
the array. The point of a SAN is that the storage _is_ abstracted above
the OS, you can't therefore use OS specific tools to monitor/understand
the SAN.

-Walden