[Ocfs2-users] Cluster setup
Alexei_Roudnev
Alexei_Roudnev at exigengroup.com
Tue Oct 9 11:59:32 PDT 2007
He better use standard, well tested and widely-used heartbeat + LVM + NFS
configuration (but it require APC switch for better reliability).
----- Original Message -----
From: "Sunil Mushran" <Sunil.Mushran at oracle.com>
To: "AJ Weber" <aweber at comcast.net>
Cc: <ocfs2-users at oss.oracle.com>
Sent: Tuesday, October 09, 2007 11:52 AM
Subject: Re: [Ocfs2-users] Cluster setup
> That won't handle the nfs server death case. What he wants
> is for the client to transparently mount the volume from another
> nfs server.
>
> AJ Weber wrote:
>> Is it possible to augment with something straightforward and simple like
>> Pen or Balance?
>> (I forget if those are HTTP-specific.)
>> Also, if you want to do rudimentary load balancing (maybe a half-step
>> better than the manually load balanced config, below), you can add all
>> three servers' IP Addresses to the DNS under one name, and the DNS
>> server(s) _should_ randomly choose an entry to return. That might work,
>> since NFS is session-based (AFAIK), and should stay with the same server
>> after session initiation.
>> My $0.02, please adjust for inflation. ;)
>> -AJ
>>
>> ----- Original Message -----
>> *From:* Brian Anderson <mailto:banderson at athenahealth.com>
>> *To:* ocfs2-users at oss.oracle.com <mailto:ocfs2-users at oss.oracle.com>
>> *Sent:* Tuesday, October 09, 2007 2:35 PM
>> *Subject:* RE: [Ocfs2-users] Cluster setup
>>
>>
>> Not exactly. I'm in a similar boat right now. I have 3 NFS servers
>> all
>> mounting an OCFS2 volume. Each NFS server has its own IP, and the
>> clients load balance manually... some mount fs1, others fs2, and the
>> rest fs3. In an ideal world, I'd have the NFS cluster presenting a
>> single IP, and failing over / load balancing some other way.
>>
>> I'm looking at NFS v4 as one potential avenue (no single IP, but
>> it does
>> let you fail over from 1 server to the next in line), and commercial
>> products such as IBRIX.
>>
>>
>>
>>
>> Brian
>>
>> > -----Original Message-----
>> > From: ocfs2-users-bounces at oss.oracle.com
>> <mailto:ocfs2-users-bounces at oss.oracle.com>
>> > [mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Sunil
>> Mushran
>> > Sent: Tuesday, October 09, 2007 2:27 PM
>> > To: Luis Freitas
>> > Cc: ocfs2-users at oss.oracle.com <mailto:ocfs2-users at oss.oracle.com>
>> > Subject: Re: [Ocfs2-users] Cluster setup
>> >
>> > Unsure what you mean. If the two servers mount the same
>> > ocfs2 volume and export them via nfs, isn't that clustered nfs?
>> >
>> > Luis Freitas wrote:
>> > >
>> > > Is there any cluster NFS solution out there? (Two NFS
>> > servers sharing
>> > > the same filesystem with distributed locking and failover
>> > capability)
>> > >
>> > > Regards,
>> > > Luis
>> > >
>> > > */Sunil Mushran <Sunil.Mushran at oracle.com>/
>> <mailto:Sunil.Mushran at oracle.com%3E/>* wrote:
>> > >
>> > > Appears what you are looking for is a mix of ocfs2 and nfs.
>> > > The storage servers mount the shared disks and the reexport
>> > > them via nfs to the remaining servers.
>> > >
>> > > ubuntu 6.06 is too old. If you are stuck on Ubuntu LTS, the
>> > > next version 7.10 should have all you want.
>> > >
>> > > Pavel Georgiev wrote:
>> > > > Hi List,
>> > > >
>> > > > I`m trying to build a cluster storage with commodity
>> > hardware in
>> > > a way that
>> > > > the all the data would be on > 1 server. It should
>> > have the meet
>> > > the
>> > > > following requirements:
>> > > > 1) If one of the servers goes down, the cluster
>> > should continue
>> > > to work with
>> > > > rw access from all clients.
>> > > > 2) Clients that mount the storage should not be part
>> > of cluster
>> > > (not export
>> > > > any disk storage) - I have few servers with huge disks
>> that I
>> > > want to store
>> > > > data on (currently 2 servers, maybe more in the future)
>> and I
>> > > want to
>> > > > storethe data only on them, the rest of the server
>> should just
>> > > mount and use
>> > > > that storage with the ability to continue operation if
>> one of
>> > > the two storage
>> > > > servers goes down.
>> > > > 3) More servers should be able to join the cluster
>> > and at given
>> > > point,
>> > > > expanding the total size of the cluster, hopefully without
>> > > rebuilding the
>> > > > storage.
>> > > > 4) Load balance is not a issue - all the load can go to
>> one of
>> > > the two storage
>> > > > servers (although its better to be balanced), the main
>> goal is
>> > > to have
>> > > > redundant storage
>> > > >
>> > > > Does ocfs2 meet these requirements? I read few howtos
>> but none
>> > > of them
>> > > > mentioned my second requirement (only some of the servers
>> to
>> > > hold the data).
>> > > >
>> > > > Are there any specific steps to do to accomplish (2) and
>> (3)?
>> > > >
>> > > > I`m using Ubuntu 6.06 on x86.
>> > > >
>> > > > Thanks!
>> > > >
>> > > > _______________________________________________
>> > > > Ocfs2-users mailing list
>> > > > Ocfs2-users at oss.oracle.com
>> <mailto:Ocfs2-users at oss.oracle.com>
>> > > > http://oss.oracle.com/mailman/listinfo/ocfs2-users
>> > > >
>> > >
>> > >
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>> > >
>> > >
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