[luau] videl.ics.hawaii.edu disk failure - Your Help Needed

Thomas Ryan Gordon Sr memeyou at memeyou.net
Thu Dec 4 10:33:01 PST 2003


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R.Scott Belford wrote:

| I am saddened

Don't be sad, I was just learning that the RAID is in-fact
software-based and all 160 gigs will be usable.  The more hard-drives,
the merrier.

But back to the tech stuff.  I just had a thought about videl but I
could certainly be thinking wrongly with my limited knowledge about videl.

~    "Software-RAID, by its very software nature, tends to be more
flexible than a hardware solution. The downside is that it of course
requires more CPU cycles and power to run well than a comparable
hardware system."

Does videl have an available PCI slot?  If we still got the low-end
60G (and it still fits) and spent $20 on a ATA RAID controller we
could stop doing the software RAID thing and improve performance and
reduce CPU usage.  It was my understanding that videl is worked very
hard in cpu/memory.

In my limited experience, i've only compared the performance benefits
of moving software->hardware using SCSI so I am uncertain about the
level of benefit of moving to true RAID via IDE.  Also these RAID 0/1
controllers may be so low-end that they may not even be comparable to
today's software implication in Linux.

Of course, thats a lot of drives and videl would at least have to be a
2u or a very fancy 1u to fit them all in or have a ballsy PSU.

Tom

Tom
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