From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: First RAID Setup Date: Thu, 22 Dec 2005 09:27:29 -0500 Message-ID: <43AAB7D1.8090400@tmr.com> References: <20051218220831.77225.qmail@web54606.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20051218220831.77225.qmail@web54606.mail.yahoo.com> Sender: linux-raid-owner@vger.kernel.org To: Andargor The Wise Cc: "Callahan, Tom" , linux-raid@vger.kernel.org List-Id: linux-raid.ids Andargor The Wise wrote: >Yet another thing, someone has suggested that I should >increase the chunk size for my RAID5 from 32 to either >64 or 128. > >Is it worth it, considering that the system doesn't >normally run on a heavy load? Mail for a few users, >some read-only database applications, website, etc. >Mostly a development machine. > > Can't think of a case where it's not worth having better performance... I should write a WP on stripe size, and what happens as you change it with given loads. >Would this alleviate the "pauses" during large file >transfers/copies that I have indicated in my previous >post? > >I'm asking because backing up ~176 GB, reconfiguring >the RAID, and restoring it properly so the machine >boots (the RAID5 is /) is quite a PITA. > You may have some special case, but I would never put data that large in / just as a system admin issue. It makes backups and restores, as well as upgrades quite unpleasant. I guess you may have noticed that by now ;-) Good luck! -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979