Archives


- Beowulf
- Beowulf Announce
- Scyld-users
- Beowulf on Debian

IDE/SCSI RAID (fwd)

Many of your questions may have already been answered in earlier discussions or in the FAQ. The search results page will indicate current discussions as well as past list serves, articles, and papers.

Search

Robert G. Brown rgb at phy.duke.edu
Mon Apr 9 11:58:18 PDT 2001


As a final note to the IDE/SCSI RAID discussion we had a month or two
ago -- a friend of mine on campus got one (and promised to send me a
report on how it worked out).  Here is his report.  He probably wouldn't
mind answering a question or two on it, but you probably shouln't hammer
him.

Looks like it is a pretty good deal...

   rgb

-- 
Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu



---------- Forwarded message ----------
Date: Fri, 6 Apr 2001 14:01:43 -0400 (EDT)
From: Joshua Baker-LePain <jlb17 at duke.edu>
To: Robert G. Brown <rgb at phy.duke.edu>
Subject: IDE/SCSI RAID

I just wanted to send a quick final "Thank you" for the IDE/SCSI RAID
suggestion, and let you know how it turned out.  I ended up buying a
SyneRaid-800T from Synetic -- 640GB (560 w/ RAID5) on a U2W bus for $6K.
It uses the same controller as the newer Zero-D system (G-Force), but it
doesn't look like a d*mn Mac.  ;)  Of course, it is Sun purple, but
still...

I'm consistently getting 25-30MB/s throughput to the system (and that's
with 5400RPM drives) -- I'll take it!  And it's pretty nifty to see this
(pay attention to that last entry):

[jlb at chaos jlb]$ df -k
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda1               155545     69487     78028  47% /
/dev/sda5             11954192   1968288   9378652  17% /scratch
/dev/sda9               101089      1958     93912   2% /tmp
/dev/sda7              2071384   1036296    929864  53% /usr
/dev/sda6              2071384    574672   1391488  29% /usr/local
/dev/sda10              101089     30100     65770  31% /var
/dev/sdb1              8262036   6913872    928468  88% /home
/dev/sdb2              9384708   7694308   1213672  86% /spare
philip:/data         560136176   5134640 555001536   1% /data

Thanks again!  You've saved me from grad students' whining about space.
Well, for 6 months at least (I hope).

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University





More information about the Beowulf mailing list