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06262 - Multiple instances on iSeries

06262 - Multiple instances on iSeries

CL_GUI_FRONTEND_SERVICES - Frontend Services   PERFORM Short Reference  
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Multiple instances on iSeries

Hi all,

we have SAP running on an iSeris 830 connected via fc to an IBM ESS Shark
storage system, about two months ago we migrated from R/3 40B to 46C.
Before performing the migration we had particularly good performances, now
the systems responsiveness if poor and after various tunings and
earlywatch sessions, a consultant of ours told me about the possibility of
running multiple instances instead of a single one in the same machine.
Today we have two "users groups" working on the same instance, for RFC as
well; the consultant proposal (in order to achieve better performances)
was substantially this:

instance #00: to be used for group "A" users only
instance #01: to be used for group "B" users only
instance #02: to be used for RFC

Do you think we could get better performance through this load-balancing ?
Any ideas ?
Your opinions welcome.

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Franco Tassone - (Emsar IS) tel.: +39-085-4442248
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