OSH processes

Post questions here relative to DataStage Enterprise/PX Edition for such areas as Parallel job design, Parallel datasets, BuildOps, Wrappers, etc.

Moderators: chulett, rschirm, roy

Post Reply
grb_garre
Participant
Posts: 17
Joined: Wed Jan 19, 2005 10:49 pm

OSH processes

Post by grb_garre »

Hi,

Is there any formula /methodolgy to calculate no of OSH processes in order to size a Datastage EE server.

can anybody share the ideas please ...


Thanks in Advance
Raj
ArndW
Participant
Posts: 16318
Joined: Tue Nov 16, 2004 9:08 am
Location: Germany
Contact:

Post by ArndW »

You could use a rough guideline of one job per stage in your job multiplied by the number of nodes. I think the docs explain exactly which stages trigger processes and which baseline pids get fired off as well.

Do you need a more exact computation?
ray.wurlod
Participant
Posts: 54607
Joined: Wed Oct 23, 2002 10:52 pm
Location: Sydney, Australia
Contact:

Post by ray.wurlod »

Some recent posts seem to suggest a belief that a server will support an infinite number of processes. That you are trying to size the server is commendable. Arnd's guideline is for one job - you must also have the discipline to avoid starting more jobs than the machine that you specify can handle - and impose that discipline on others.
IBM Software Services Group
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Post Reply