Peter McMahon wrote: >Hi, >new to all of this OCFS2 stuff...planning on using it >for a production 10gR2, EBS 11.5.10.2 RH 4 system...4 >nodes sharing disks...all connected to an EMC storage >array. Each node is a 2xXeon 3GHz(+) (with HT = 4) CPU >box, with 8 G RAM. > >Looking at using OCFS2 for Shared OH, Shared APPL_TOP, >and Datafiles etc. > >Doing some very basic perfoamnce testing as I found >OCFS2 very slow when applying 11.5.10.2 Maintnance >Patch. > >On 'normal' etx3 file systems - copying 18G (APPL_TOP >- 100,000 files) from one file system to another took >15 minutes. > >On another box - with NOTHING else running...copying >same filesystem structure from one OCFS2 filesystem to >another OCFS2 filesystem took > 1.5 hours - I killed >it eventually. kswapd was going mad - consuming LOTS >of CPU - top of 'top' majority of the time when >copying in progress. > >Tried reformating the 'target' file system with 64K >cluster size - block size was/is 4K...again same >result - slow copying of files, kswapd going mad... > >I'm I missing something - or is OCFS2 not supposed to >be a 'general purpose' clustered file system? I know >it supposed to be certified for shared OH ? > > > Not really. Even if Oracle says it's supposed to be a general purpose filesystem, it's primary purpose is to enable the deployment of a clustered database.
You are faulting a TL for not being able to haul all of your belongings when you're not really buying it for that purpose. >Project Manager is getting scared - not happy with >performance - say OCFS2 is not ready for the prime >time...? wants to start using GFS from RH...but costs >a small fortune...not sure we can justify the cost... > >Comments & advise please > > > Test your configuration for what it's meant for: namely RAC. You may need to reconsider the use of ocfs2 for shared oracle home's but that shouldn't be a show stopper. >Peter > > > > > >Send instant messages to your online friends http://au.messenger.yahoo.com > >_______________________________________________ >Ocfs2-users mailing list >[email protected] >http://oss.oracle.com/mailman/listinfo/ocfs2-users > > > > _______________________________________________ Ocfs2-users mailing list [email protected] http://oss.oracle.com/mailman/listinfo/ocfs2-users
