Greetings!
I have set up a system with a IDE raid1 for /boot, / , and swap area and a
SCSI raid5 for data area, and it seems to be working just fine now that I
turned on DMA as a kernel option for my IDE drives in the raid1. ( I got
almost 80% improvement in thruput on the raid1 after the change. )
Since this sort of setup should be considered to be robust, I also swapped out
all my memory for ECC. Naturally, I'll be using a UPS.
My question is based upon prior experience working for Stratus Computer. At
Stratus it was impractical to go beat the disk drives with a hammer to cause
them to fail - rather we would simply use a utility to cause the disk driver
to begin to get "errors" from the drives. This would then exercise the
recovery mechanism - taking a drive off line and bringing another up to
take its place. This facility is also present in Veritas Volume Manager test
suites to exercise the code.
Do you have such a mechanism available? So far, the documentation I've read
seems pretty sparse - but maybe I missed how to check the raid without
dismantling the system. I'd have a warmer fuzzy feeling if I could verify
the recovery actions. :-)
Thanks,
Richard
--
[EMAIL PROTECTED] Intel Corporation
Ph: (408)765-1579 Richard Schaal
Mail Stop SC12-308
3600 Juliette Lane
"I can type faster than I think!" Santa Clara, CA 95052
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