 | | | Oracle cluster configuration : RH Cluster Suite mandatory | Oracle cluster configuration : RH Cluster Suite mandatory 2005-08-24 - By Tom Sightler
Back
On Wed, 2005-08-24 at 10:58 -0400, Brian Long wrote:
> I believe this provides another reason for people to use SLES over RHEL
> in the future, however. If SLES includes OCFS support out-of-the-box
> and Red Hat charges an additional $2K/node for GFS, something is out of
> whack. Or am I missing something?
Historically GFS and OCFS were targeting very difference uses. OCFS was
very specific to Oracle and didn't support the storage of anything other
than Oracle datafiles required for RAC. OCFS did not have normal file
semantics and you could lock up nodes simply by doing things like
running a backup with tar from and OCFS volume.
GFS is a generic use clustered file system that should work well with
almost any type of application, not just Oracle as it is fully posix
compliant.
OCFSv2 addresses many of the posix compliance issues, but it still
doesn't seem to be focused on providing support for anything other than
Oracle. When you look at descriptions of OCFSv2 you get this:
"Unlike the previous release (OCFS), OCFS2 is a general-purpose file
system that can be used for shared Oracle home installations making
management of Oracle Real Application Cluster (RAC) installations even
easier."
And SuSE announce of the feature in SLES9 SP2 says:
"OCFS 2 cluster files system has been included to support Oracle RAC on
x86, AMD64?? & Intel?? EM64T?? and Itanium 2 processors."
Notice, everything that mentions OCFS says "to support Oracle...", using
OCFSv2 for other purposes will likely work, but I don't know who you'll
call when it doesn't. This isn't true GFS, which is supported with a
myriad of applications.
That what I currently believe is a difference. That being said, there's
nothing to stop SuSE/Novell from deciding to support OCFS in the future.
Also, it's easy to put OCFSv2 on RHEL4, unfortunately there are a few
bugs in RHEL4 U1 that cause some problems so you have to install a
slightly patched, unsupported kernel, but the OCFSv2 web page states
that those issue are expected to be resolved in RHEL4 U2.
Later,
Tom
--
Taroon-list mailing list
Taroon-list@(protected)
http://www.redhat.com/mailman/listinfo/taroon-list
Earn $52 per hosting referral at Lunarpages.
|
|
|