Re: [gentoo-cluster] OCFS support?

[Jan Klopper]

hmm bummer,

i was hoping it was a system that allowed me to designate a set of nodes to
all have their own local harddisk as an always uptodate cache of the cluster
filesystem.

(eg what coda and lustre do)

No offense but i think il stick to mysql for now, as it supports just the
functions i need, and with that i can use all the memmory i want.

Thanks anyway.

On 3/21/06, Jared Greenwald <greenwaldjared@×××××.com> wrote:
>
> Let me just preface this by saying that I work at Oracle, but not in
> the Database or in OCFS2...
>
> responses inline...
>
> On 3/21/06, Jan Klopper <janklopper@×××××.com> wrote:
> > Hi,
> >
> > just noticed the 2.6.16 kernel release.
> >
> > One of the biggest changest to me seem to be OCFS, but the question i
> can't
> > seem to find an answer for is the following:
> >
> > Does OCFS need a single shared storge solution, or does it propogate
> file
> > system changes around the cluster to the nodes local drives like lustre
> or
> > coda would?
>
> I don't know the answer offhand, but the user guide can be found here
> (
> http://oss.oracle.com/projects/ocfs2/dist/documentation/ocfs2_users_guide.pdf
> )
> and chop that address down to just the oss.oracle.com to find general
> information about all of Oracle's Open Source endeavors.
>
> My guess, since they support shared root, is that its a shared disk
> solution.
>
> > If OCFS does indeed propogate file and file system changes around the
> cluste
> > witout using an expensive Fibrechannel storage sollution, would't it be
> the
> > holy grail of simple clustered file systems?
>
> See previous.
>
> > I mean could you use it to share one disk between a set of webserver
> cluster
> > nodes which usually just read a lot, and occasionally write to their
> disks?
> >
> > And could this be used as a file system to allow mysql to run on a
> cluster
> > of nodes?
>
> Considering that they support Oracle running on OCFS2 (as well as
> shared root), I doubt this would be a problem in either case.
>
> As for the mysql question, I'm not sure that Larry would be too happy
> with someone running mysql on top of OCFS2.  Not that I expect you to
> consider it, but there is a "lite" version of Oracle DB that's free
> called Express Edition
> (http://www.oracle.com/technology/products/database/xe/index.html).
> Exactly how scaled back it is, I have no idea, but its Oracle DB and
> free - that's at least something.
>
> > Could we setup a cluster of nodes which all read and write from the
> database
> > stored on such a FS?
>
> This would be more a database issue (locking and so forth), but yea.
>
> --
> gentoo-cluster@g.o mailing list
>
>


--
Vr gr,
Jan Klopper
Innerheight Internet Diensten
http://www.innerheight.com