Question is, what are you going to spend those "bigger $$" on?
Non-RAC:
- additional CPUs
- additional Oracle EE licensing for additional CPUs
RAC:
- additional servers/nodes, with additional cards for clustering adapters
- additional software licensing for cluster software
- additional Oracle EE licensing (multiply times 150% for RAC licensing) for additional servers/nodes
- additional UNIX SysAdmin training/expertise/salary for administering clustered systems
- additional UNIX SysAdmin time spent setting up cluster nodes
- additional Oracle DBA training/expertise/salary for administering RAC
- additional Oracle DBA time spent dealing with RAC-specific issues and heartburn
Frankly, I don't see how just adding CPUs is more costly or less desirable...
- Original Email ------------------------
All,
Given some of the recent postings on RAC, we are probably crazy to continue looking at it. Still, we have an app that we can see scaling to 40+ CPUs in the next year and want some way to avoid buying ever bigger servers (with the attendant ever bigger $$) to handle it. Currently we are looking at IBM and are left with a few questions:
- Is anyone running production RAC on AIX and what has the experience been from a reliability standpoint? Administrative difficulties? Etc?
- Is anyone running production RAC on Linux on IBM hardware and what has the experience been from a reliability standpoint? Administrative difficulties? Etc?
- IBM claims that their cluster software handles heterogeneous boxes quite well. We are considering the possibility of getting 3 4-way 530s to "prove out" and get RAC running. Later we would add in 650s for scaling up. Eventually the 530s go away and become something else, like a test RAC. Has anyone been running RAC in a heterogeneous environment and what have your experiences been?
Any practical experience feedback would be greatly appreciated.
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Received on Thu May 13 2004 - 11:45:05 CDT