*BSD News Article 52940


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From: tls@cloud9.net (Thor Lancelot Simon)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Striping Disks
Date: 19 Oct 1995 01:14:27 GMT
Organization: Cloud 9 Internet, White Plains, New York, USA
Lines: 40
Message-ID: <4648pj$7rm@news.cloud9.net>
References: <460ogk$hnn@service2.uky.edu> <460r78$mf8@agate.berkeley.edu> <4621n4$8p2@park.uvsc.edu>
NNTP-Posting-Host: cloud9.net

In article <4621n4$8p2@park.uvsc.edu>,
Terry Lambert  <terry@cs.weber.edu> wrote:
>nickkral@parker.EECS.Berkeley.EDU (Nick Kralevich) wrote:
>>
>> In article <460ogk$hnn@service2.uky.edu>,  <soward@pop.uky.edu> wrote:
>> >Anyone working on support for striping multiple disks into a larger 
>> >partition. This could really increase throughput on IO bound machines, 
>> >like inn servers, ect. Rumor has it that a Linux implementation is being 
>> >worked on.
>
>Both disk striping and drive concatentation are possible, though
>you must install the patches yourself.

NetBSD Has It Now.

(and it runs on my 11/750, too.  eerie...)

>The CCD driver is usable from the NetBSD i386 sources to
>concatenate disks (disk concatenation is not a very general
>soloution).
>
>There is disk striping code, originally from MIT, which Rod Grimes
>has had working under FreeBSD for quite some time.

There is disk striping code, in the ccd driver, which works just fine 
under NetBSD/i386 as well as under the other ports, and might even work 
under FreeBSD; I see no reason why the driver would work with 
interleave=0 but not with other interleave values!

>The Compaq RAID SCSI controller is a full on RAID implementation,
>and is probably the best soloution.  A driver for this controller
>is available (see the -hackers list archives on www.freebsg.org).

That's true.  I want one!

What do they go for?
-- 
Thor Lancelot Simon                                               tls@cloud9.net
 
Don't let your mouth write no check that your tail can't cash.      --Bo Diddley