[SunHELP] anybody running clustered redhat?
sunilnr at hotmail.com
Mon Mar 1 11:44:04 CST 2010
Sorry man, My laptop died on saturday night.
Here is quick/steps to setup/configure ocfs2 cluster with OEL and Redhat,
PRE Instalation requirements.
1. Private interconnect - configure before you setup cluster - Like in Solaris
installation/configuraiton takes care of interconnect setup. Here we have
to setup ahead.
Private interconnect is recommendation by Oracle RAC for better performace
you can use public ip too.
2. Shared devices (supported iscsi/san)
3. Make sure ocfs2 rpm's installed use this command to query - rpm -qa |grep
4. ocfs2 kernel rpm, console rpm and tools rpm is important.
Post installation and Configuration,
Run GUI to setup/configure ocfs2
With ocfs setup provide private interconnect ip's and specify public
select Cluster + Configure node and select add buttion to specity hostname and
Here is location for conf file and example. Or you can create manually these
file on both nodes.
/etc/ocfs2/cluster.conf --- file example
ip_port = 7777 # default port number
ip_address = 10.10.1.1 # private interconnect ip
number = 0 # node number
name = hostname1 # should be public hostname
cluster = ocfs2
ip_port = 7777
ip_address = 10.10.1.2
number = 1
name = hostname2
cluster = ocfs2
node_count = 2 # total number of cluster nodes.
name = ocfs2
Now run this command on both nodes.
# /etc/init.d/o2cb configure
The cluster will generate this file P.S.:Here you need to type all default
# This is a configuration file for automatic startup of the O2CB
# driver. It is generated by running /etc/init.d/o2cb configure.
# Please use that method to modify this file
# O2CB_ENABELED: 'true' means to load the driver on boot.
# O2CB_BOOTCLUSTER: If not empty, the name of a cluster to start.
# O2CB_HEARTBEAT_THRESHOLD: Iterations before a node is considered dead.
# O2CB_IDLE_TIMEOUT_MS: Time in ms before a network connection is considered
# O2CB_KEEPALIVE_DELAY_MS: Max time in ms before a keepalive packet is sent
# O2CB_RECONNECT_DELAY_MS: Min time in ms between connection attempts
Now restart the cluster file systems with this command
# /etc/init.d/o2cb restart or <stop/start>
Now run run mkfs.ocfs2 with the shared devices
# /sbin/mkfs.ocfs2 -b 4K -C 512K -N 6 -L sdb1 /dev/sdb1
-b - block size
-c - Cluster size
-N - number of nodes
-L - label
Update /etc/fstab entry with this example
# /dev/sdb1 /sharedb ocfs2 _netdev,rw,datavolume,nointr 0 0
# mkdir /sharedb # on both nodes
# /etc/init.d/ocfs2 restart or <stop/start>
Run touch command on both nodes and make sure ocfs2 is working.
Here Oracle web site for ocfs2 clusters. I am not sure this is freely
available you should be a customer to see these docs.
> Date: Sat, 27 Feb 2010 16:21:39 -0800
> From: sd_price at yahoo.com
> Subject: Re: [SunHELP] anybody running clustered redhat?
> To: sunhelp at sunhelp.org
> CC: sunilnr at hotmail.com
> that would help - sure!
> --- On Sat, 2/27/10, sunil naik <sunilnr at hotmail.com> wrote:
> > From: sunil naik <sunilnr at hotmail.com>
> > Subject: Re: [SunHELP] anybody running clustered redhat?
> > To: "Sun Help" <sunhelp at sunhelp.org>
> > Date: Saturday, February 27, 2010, 5:41 PM
> > Hi,
> > If you are looking OEL linux with OCFS/OCFS2 file systems
> > please let me know I
> > will send you pointers.
> > -Sunil.
> > > Date: Fri, 26 Feb 2010 07:56:02 -0800
> > > From: sd_price at yahoo.com
> > > To: sunhelp at sunhelp.org
> > > Subject: [SunHELP] anybody running clustered redhat?
> > >
> > > looking for a few pointers, gotchas etc
> > >
> > > regards
> > > steve
> > > ft worth
> > > _______________________________________________
> > > SunHELP maillist - SunHELP at sunhelp.org
> > > http://www.sunhelp.org/mailman/listinfo/sunhelp
> > _________________________________________________________________
> > Hotmail: Trusted email with powerful SPAM protection.
> > http://clk.atdmt.com/GBL/go/201469227/direct/01/
> > _______________________________________________
> > SunHELP maillist - SunHELP at sunhelp.org
> > http://www.sunhelp.org/mailman/listinfo/sunhelp
Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
More information about the SunHELP