Comments on: Future of OCFS2 http://www.ardentperf.com/2009/02/05/future-of-ocfs2/ Jeremy Schneider Wed, 08 Sep 2010 23:15:02 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Jeremy http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1705 Jeremy Wed, 01 Sep 2010 21:30:31 +0000 http://www.ardentperf.com/?p=698#comment-1705 Thanks for stopping by, Jean-Francois! When I originally wrote this blog post, ACFS wasn't released yet... and Oracle's release timeline for ACFS didn't work with our timeline for developing this architecture. Anyway, I personally wouldn't recommend ACFS yet for a major architecture effort like this. Definitely good to start trying it out in a few places -- but I'd definitely wait a little while before doing any wide-scale deployments. OCFS2 has been around for a bit longer and I do think that it's a viable option for wide deployment. But for what it's worth, some other engineers disagreed with me about OCFS2 and the project eventually ended up excluding any linux cluster filesystem. They just re-engineered the design to use local storage only (and ASM for data). Personally I was voting for OCFS2 but the final design wasn't so bad. Thanks for stopping by, Jean-Francois! When I originally wrote this blog post, ACFS wasn’t released yet… and Oracle’s release timeline for ACFS didn’t work with our timeline for developing this architecture.

Anyway, I personally wouldn’t recommend ACFS yet for a major architecture effort like this. Definitely good to start trying it out in a few places — but I’d definitely wait a little while before doing any wide-scale deployments. OCFS2 has been around for a bit longer and I do think that it’s a viable option for wide deployment.

But for what it’s worth, some other engineers disagreed with me about OCFS2 and the project eventually ended up excluding any linux cluster filesystem. They just re-engineered the design to use local storage only (and ASM for data). Personally I was voting for OCFS2 but the final design wasn’t so bad.

]]> By: Jean-Francois http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1704 Jean-Francois Wed, 01 Sep 2010 17:16:54 +0000 http://www.ardentperf.com/?p=698#comment-1704 Ever considered ACFS since 11Gr2 ? I like the idea for Oracle homes since it benefits the advantages from ASM. jean Ever considered ACFS since 11Gr2 ?

I like the idea for Oracle homes since it benefits the advantages from ASM.

jean

]]> By: Jeremy http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1580 Jeremy Wed, 10 Feb 2010 17:16:12 +0000 http://www.ardentperf.com/?p=698#comment-1580 ZFS is not a cluster filesystem - you can't access it simultaneously from two hosts. It does have a lot of cool features though. I'm also a little geeked about btrfs - in fact it has many similar features to zfs. In the end I recommended that the company use OCFS2, but primarily for business rather than technical reasons. They already had a standard design and extensive scripting for RAC on Solaris, utilizing a cluster filesystem. There is no cluster filesystem available for datafiles on Linux besides OCFS2. I felt that OCFS2 was a technically viable option and it would be similar architecturally to their Solaris environments - allowing them to leverage past Solaris scripting and design work to the maximum extent. ZFS is not a cluster filesystem – you can’t access it simultaneously from two hosts. It does have a lot of cool features though. I’m also a little geeked about btrfs – in fact it has many similar features to zfs.

In the end I recommended that the company use OCFS2, but primarily for business rather than technical reasons. They already had a standard design and extensive scripting for RAC on Solaris, utilizing a cluster filesystem. There is no cluster filesystem available for datafiles on Linux besides OCFS2. I felt that OCFS2 was a technically viable option and it would be similar architecturally to their Solaris environments – allowing them to leverage past Solaris scripting and design work to the maximum extent.

]]> By: phil http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1579 phil Wed, 10 Feb 2010 16:08:27 +0000 http://www.ardentperf.com/?p=698#comment-1579 You should also consider ZFS (fs coming from sun and available as a fuse module on linux) which could replace both OCFS and ASM if Oracle would decide to get and use the best technologies coming from their new acquisition (sun)... You should also consider ZFS (fs coming from sun and available as a fuse module on linux) which could replace both OCFS and ASM if Oracle would decide to get and use the best technologies coming from their new acquisition (sun)…

]]> By: Neil Greene http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1524 Neil Greene Sat, 14 Feb 2009 01:57:21 +0000 http://www.ardentperf.com/?p=698#comment-1524 Because you have hundreds of systems to configure to standard, I would "avoid" anything that is either not solid or may change. And for that reason, I don't think I would move forward with an OCFS2 solution. I have not seen a lot of advances in the last few years. And we do see advances in other areas by Oracle, and other clustering filesystems from other vendors. I love OCFS to "get the job done" with limited enterprise impact. Not sure if that is the direction you want to take. Because you have hundreds of systems to configure to standard, I would “avoid” anything that is either not solid or may change. And for that reason, I don’t think I would move forward with an OCFS2 solution.

I have not seen a lot of advances in the last few years. And we do see advances in other areas by Oracle, and other clustering filesystems from other vendors.

I love OCFS to “get the job done” with limited enterprise impact. Not sure if that is the direction you want to take.

]]> By: Using OCFS2 the right way | Crackpot Ideas http://www.ardentperf.com/2009/02/05/future-of-ocfs2/#comment-1523 Using OCFS2 the right way | Crackpot Ideas Fri, 13 Feb 2009 14:20:40 +0000 http://www.ardentperf.com/?p=698#comment-1523 [...] responding to Jeremy’s message on Oracle-L, it got me reading his blog.  On one post, he asks if OCFS2 has a future given the rumored introduction of “ASMfs“, and if [...] [...] responding to Jeremy’s message on Oracle-L, it got me reading his blog.  On one post, he asks if OCFS2 has a future given the rumored introduction of “ASMfs“, and if [...]

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