Re: [TCLUG:22757] Raid and other storage stories

[<Nick.T.Reinking@supervalu.com>]

Because when it says ATA/66, that means 66MB/sec
maximum throughput per channel.  Since there is only
one IBM drive per channel, you're never going to hit
66MB/sec.

The only real speed limitation in this case is the speed of
the PCI bus - 133MB/sec.

Nick Reinking





dopp@acm.cs.umn.edu, on 10/17/2000 02:12:06 PM
To: tclug-list@mn-linux.org @ PMDF
cc:  
Subject: Re: [TCLUG:22757] Raid and other storage stories

On Tue, Oct 17, 2000 at 01:31:49PM -0500, Nick.T.Reinking@supervalu.com wrote:
> Try www.elinux.com or www.thelinuxstore.com.
> 
> Also, you don't need ATA/100 at all with just one device.

Well, I'm apparently not up on my IDE spec...  Why is that?

> 
> As cool and fast as those 75GXPs are, they're not going to top
> more than 40MB/sec.  Easily under 66MB/sec.

Right, but that's _per drive_...

> 
> AFAIK, you can do all the weird partitioning that you could do
> with a real SCSI RAID controller.  The only bad thing about them
> is that they don't support RAID 5.  Only RAID 0,1, and 0+1, and
> JBOD, I think.

RAID 5 would be nice, but I can live without.  I'm primarily going for speed
anyway.  I think their RAID 1 would be sufficient for me, though it halfs
my disk space, if I'm not mistaken.  Maybe I'll have to get 8 drives then
:)

Gabe

-- 
--------------------------------------------------------------------------------
Gabe Turner                                    |           X-President,
UNIX Systems Administrator,                    | Assoc. for Computing Machinery
U of M Supercomputing Institute for            |    Univerisity of Minnesota
Digital Simulation and Advanced Computation    |       dopp@acm.cs.umn.edu

"You've really lost it this time....you've lost your mind!"
        - Ren finds out about Stimpy's Stinky Butt Fantasy in "Son Of Stimpy"
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