[nycbug-talk] RAID controllers - what doesn't suck?
Mon Sep 13 16:29:29 EDT 2004
Looking for some feedback from people using low to midrange SCSI RAID
controllers under FreeBSD (but other *BSD input would be useful as well).
Last time I shopped, Adaptec seemed like the best value for the money.
But since installing a number of these, I'm rethinking that. The most
annoying problem I've run into is the controller just marking drives as
bad. If I reboot and ask it to build back onto the "bad" drives, all is
well for quite some time. Most of the drives are IBM, bought before
people started noting that IBM drives are garbage.
This of course leads to troubleshooting hell... Checking the firmware on
all the drives and then digging up a windows box and scsi card to "flash"
the drives, double and triple checking the scsi chain is terminated
properly, hoping that the SCA backplane isn't hosed, etc. Time consuming
and a lot of mixed results. Part of me just thinks this is an issue with
the IBM drive, but then again, the drives work fine standalone. In a few
days I'm taking one problematic system down and junking all the IBM drives
for some new (and larger) Seagates. So if that makes everything "OK",
I'll stick with Seagate.
One other question... I'm going to be setting up a new shell server that
also serves up a decent amount of ~user webpages. That too will need a
RAID controller. I'm not really up on what advantages SATA has over
normal IDE drives, but I wonder if perhaps SATA RAID would be sufficient
in this case? Lots and lots of random reads, not very sequential.
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