From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Raid5, LVM and Reiserfs Date: Mon, 21 Oct 2002 09:39:02 +0400 Message-ID: <3DB392F6.3000603@namesys.com> References: <000701c277c9$ef8d6c70$0101a8c0@bummer> <200210210449.g9L4n50g022158@turing-police.cc.vt.edu> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Valdis.Kletnieks@vt.edu, Reiserfs mail-list Valdis.Kletnieks@vt.edu wrote: >On Sun, 20 Oct 2002 07:47:50 +0800, darren said: > > > >>Due to the bad performance (or so I heard on google) of the hardware >>raid controller, I would like to use software raid5. >> >> > >You may wish to verify further. Has the hardware raid controller been >identified as being slower than *software* RAID-5? (Remember - if you do >it in software, you have to do a disk write per disk). Or is the RAID >controller merely "not as fast as other hardware RAID controllers)? > > It would be surprising if any hardware RAID controller was as bad as software RAID. I agree that measuring is advisable. I would be curious to see numbers on something like that. Hans