RAID controllers
Lachlan Cranswick
lachlan at ldeo.columbia.edu
Sat Apr 14 22:52:08 BST 2001
>> There's a wide range though, how many disks will you be using and what
>> are they?
>
>We'll be using 3 36.7Gb U160 IBM Ultrastars (unless anyone really
>recommends anything else...) in a RAID5 configuration and hot-pluggableness
>is essential.
>
>So what would you recommend and at what cost does it come?
What is the failure rate of RAID - not from the hard-disks, but
either from the RAID controller - or the motherboard or non-hard
disk part of the server?
---------
As an aside, is the following reasonable as a "budget"
substitute for a RAID system which assumes complete
system failure of either a SCSI card - hard disk or
motherboard?
acceptable - but not too much)
Generic PC Hardware and:
"SCSI Card one" with two external SCSI hard-disks - 1a and 1b
First Hard disk - for Web and FTP data
Second Hard disk - for system, web and ftp logs
"SCSI Card two" with 2 external SCSI hard-disks "rsyncing" the data
at regular intervals from SCSI Card 1
(plus a tape backup device - with offsite tape storage)
Lachlan.
-----------------------
Lachlan M. D. Cranswick
Geochemistry - Lamont-Doherty Earth Observatory, Columbia University
PO Box 1000, 61 Route 9W Palisades, New York 10964-1000 USA
Tel: (845) 365-8662 Fax: (845) 365-8155
E-mail: lachlan at ldeo.columbia.edu WWW: http://www.ldeo.columbia.edu
CCP14 Xtal Software Website: http://www.ccp14.ac.uk
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