Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 18 Dec 1998 13:41:59 +1030
From:      Greg Lehey <grog@lemis.com>
To:        Dan Swartzendruber <dswartz@druber.com>
Cc:        Matthew Patton <patton@sysnet.net>, freebsd-isp@FreeBSD.ORG
Subject:   Re: RAID solutions?
Message-ID:  <19981218134159.S486@freebie.lemis.com>
In-Reply-To: <3.0.5.32.19981217220842.009d5cf0@mail.kersur.net>; from Dan Swartzendruber on Thu, Dec 17, 1998 at 10:08:42PM -0500
References:  <3.0.5.32.19981217220152.009c6100@mail.kersur.net> <l03110705b29e428c72d1@[192.168.1.10]> <3.0.5.32.19981215231329.00966ae0@mail.kersur.net> <l03110705b29e428c72d1@[192.168.1.10]> <19981218131434.M486@freebie.lemis.com> <3.0.5.32.19981217220152.009c6100@mail.kersur.net> <19981218133502.Q486@freebie.lemis.com> <3.0.5.32.19981217220842.009d5cf0@mail.kersur.net>

next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, 17 December 1998 at 22:08:42 -0500, Dan Swartzendruber wrote:
> At 01:35 PM 12/18/98 +1030, Greg Lehey wrote:
>> On Thursday, 17 December 1998 at 22:01:52 -0500, Dan Swartzendruber wrote:
>>>
>>> Greg, are there any performance ramifications with RAID5?  When not in
>>> degraded mode, of course...
>>
>> Yes, big ones.  Every write in normal mode requires at least one
>> additional I/O to the parity block.
>
> That's what I wondered about.  Probably not worth it for a news spool...

It depends.  Matthew was recommending RAID-1 (mirroring).  That
requires significantly more disk.  If you are concerned about the
integrity of your news spool, you have the choice between RAID-5 and
RAID-1.

Greg
--
See complete headers for address, home page and phone numbers
finger grog@lemis.com for PGP public key

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-isp" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19981218134159.S486>