Hi, Put 'em into /etc/sysconfig/rawdevices Tanel. ----- Original Message ----- From: Bob Murching To: sanstorage@xxxxxxxxx ; exriscer@xxxxxxxxx Cc: 'johan Eriksson' ; 'Oracle-L Freelists' Sent: Tuesday, March 07, 2006 1:24 PM Subject: RE: ASM and RAW Devices on RHEL 4 Does anyone have a problem with raw devices disappearing upon reboot in RedHat AS4 QU2 (x86-64)? We find that we have to recreate them on boot via rc scripts and trust that this is not standard operating procedure?! ------------------------------------------------------------------------------ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Raj S Sent: Tuesday, March 07, 2006 2:16 PM To: exriscer@xxxxxxxxx Cc: johan Eriksson; Oracle-L Freelists Subject: Re: ASM and RAW Devices on RHEL 4 There are no issues using rawdevices for ocr.dbf and votingdisk. They work just fine. Put them in your /etc/sysconfig/rawdevices and create the necessary mapping to the shared storage. We have several of these running fine on raw devices with 10G R2 on RHEL4. Raj On 3/7/06, LiShan Cheng <exriscer@xxxxxxxxx> wrote: Hi That test is comparing LVM + EXT3 vs ASM + RAW. My comparison would be ASM + RAW + LINUX I/O API vs ASM + RAW + ASMLIB I/O API. I am not sure if ASMLib is better or ASM and RAW is enough. Cheers LSC On 3/7/06, johan Eriksson < johan.eriksson@xxxxxxxxxxxx> wrote: On Tue, 2006-03-07 at 10:54 +0100, LiShan Cheng wrote: > Hi > > I am going to install a 10gR2 RAC in a couple of weeks. It will be > RHEL 4 Update 2 and I will be using ASM for all database files. > However I have some doubts, I am wondering if ASMLib API gives better > performance than Linux standard I/O API? Anyone with both ASMLib > experience and ASM + RAW + Linux I/O API? > We have just installed this combination but I haven't tested the performance yet. One test is at http://www.linuxjournal.com/article/8539 > I also read this note, Note: 357492.1, Linux 2.6 kernel deprecation of > raw devices. I was planning to use RAW Devices for the voting disk and > OCR files. If raw devices are deprecated does it mean I must use > OCFS2? > Linux 2.6 and OCFS2 aren't yet cerified so I think you have to use raw for ocr and voting (if you care about support) /johan