From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: In this partition scheme, grub does not find md information? Date: Wed, 30 Jan 2008 17:39:31 -0500 Message-ID: <47A0FCA3.7070506@tmr.com> References: <18334.46306.611615.493031@notabene.brown> <479F07E1.7060408@pobox.com> <479F0AAB.3090702@rabbit.us> <479F331F.7080902@msgid.tls.msk.ru> <479F3C74.1050605@rabbit.us> <479F42A5.8040007@msgid.tls.msk.ru> <479F5177.6060206@pobox.com> <479F557D.20502@rabbit.us> <479F7FCD.7030106@pobox.com> <479FBA54.6010009@tmr.com> <20080130002237.GC7975@rap.rap.dk> <479FC427.1080007@rabbit.us> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <479FC427.1080007@rabbit.us> Sender: linux-raid-owner@vger.kernel.org To: Peter Rabbitson Cc: =?UTF-8?B?S2VsZCBKw7hybiBTaW1vbnNlbg==?= , Moshe Yudkowsky , Michael Tokarev , linux-raid@vger.kernel.org List-Id: linux-raid.ids Peter Rabbitson wrote: > Keld J=C3=B8rn Simonsen wrote: >> On Tue, Jan 29, 2008 at 06:44:20PM -0500, Bill Davidsen wrote: >> >>> Depending on near/far choices, raid10 should be faster than raid5,=20 >>> with far read should be quite a bit faster. You can't boot off=20 >>> raid10, and if you put your swap on it many recovery CDs won't use=20 >>> it. But for general use and swap on a normally booted system it is=20 >>> quite fast. >> >> Hmm, why would you put swap on a raid10? I would in a production >> environment always put it on separate swap partitions, possibly a=20 >> number, >> given that a number of drives are available. >> > > Because you want some redundancy for the swap as well. A swap=20 > partition/file becoming inaccessible is equivalent to yanking out a=20 > stick of memory out of your motherboard. I can't say it better. Losing a swap area will make the system fail in=20 one way or the other, in my systems typicalls expressed as a crash of=20 varying severity. I use raid10 because it is the fastest reliable level= =20 I've found. --=20 Bill Davidsen "Woe unto the statesman who makes war without a reason that will stil= l be valid when the war is over..." Otto von Bismark=20 - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html