HP OpenVMS Systems

Cluster Load Balancing?

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The Question is:

 
Hi,
We have here two Alpha 8400 with 1 GB RAM clustered together with 2 CPU's each
 having 300 MHz.  Oracle 7.3.3.6 runs on these.
 
Is it possible to configure CPU load balancing whereby some processess are
 swapped automatically from one CPU to the other when the load reaches a
 specified value in a CPU.
 
Thanks
David
 

The Answer is :

 
  OpenVMS does not provide process-level checkpoint-restart mechanisms
  for swapping between systems, meaning that the literal answer to the
  question is "no".  OpenVMS does provide automatic rescheduling of
  processes within a single system.
 
  Please contact Oracle for assistance in determining how to best set
  up the Oracle environment for load-balancing, as OpenVMS does provide
  various means (LAT, DECnet, IP Metrics, etc) that can distribute the
  load across nodes, and an application itself can be coded to maintain
  some idea of the system loading and the appropriate balance.  The folks
  at Oracle will likely know what approaches -- either a feature within
  Oracle (such as Oracle Parallel Server) and/or something coded within
  your application -- would be the most appropriate approach here.
 
  Your AlphaServer 8400 series 300 MHz processors are very old and very
  slow by current standards, and you apparently have one processor module
  (as each processor module has two CPUs) present in each system -- you
  will want to consider upgrading to a faster processor module.  (The
  AlphaServer GS140 would be another direct upgrade path here.)  You
  could also consolidate both of your existing processor modules into one
  AlphaServer 8400 series, assuming sufficient slots are available.
 

  

     

     
answer written or last revised on ( 6-NOV-2000 )
     
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