Things You Do With a Modicum of Trepidation « Kevin Closson’s Oracle Blog: Platform, Storage & Clustering Topics Related to Oracle Databases

Things You Do With a Modicum of Trepidation

Published March 21, 2008 oracle

There are 120 spindles downwind of this….drumroll please….

$ asmcmd
ASMCMD> ls
SDATA1/
SDATA2_1/
SDATA2_2/
SDATA2_3/
ASMCMD> rm -fr *
ASMCMD>

Eek!

In other news, I just learned that Greg Rahn is about to get his hands on a set of HP DL580 G5 (Tigerton goodies). I’d sure like to get Silly Little Benchmark numbers from that sweetheart of a system…wish in one hand, you-know-what in the other I suppose.

2 Responses to “Things You Do With a Modicum of Trepidation”

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1 Reece Dike April 1, 2008 at 5:16 pm

I noticed that you have 120 spindles. I am assuming that they are on a SAN and not directly attached. My question is do you let the SAN do the mirroring/stripping or do you let ASM do it?

I have a clariion cx700. Each shelf will hold 15 drives. If I have 4 shelfs, 60 spindles, how do I lay them out for the best performance?

I think it is a no brainer to let the san do the mirroring, so I can present 30 small logical drives to ASM.

Or, I could mirror and strip two shelves presenting two huge drives to ASM.

Or, a little of both, I could mirror and strip six drives from two shelves at a time to present 10 medium drives to ASM.

In general, which do you recommend?

Thanks,
Reece
2 kevinclosson June 29, 2008 at 5:29 am

Reece,

I can’t talk about the storage involved in this little episode until OOW.