Cluster without shared disk, or over shared over NFS

[Marcos Monge]

Hi

I just installed and configured the Redhat Cluster Suite, under RHEL
3.0 update 3, with a Network appliance (netapp) filer. This is the
step by step:

1 - update the kernel package of RHEL 3.0 to latest avalaible, and
reboot with this kernel (if you are using RHEL 3.0 update 4, this step
is not necesary).
2 - install the iSCSI-initiator-tools package from rhn.
3 - Configure netapp to export 1 disk by iSCSI to the IQN of the 2
cluster nodes. You can see how to do this in the Netapp Documentation.
   To obtain the iqn of each linux, start the iscsi driver module, and
execute iscsi-iname command:
         /etc/init.d/iscsi start
         iscsi-iname
4 - Restart iscsi module to see the new exported disk. You must hava a
new device called /dev/sda. You can see the kernel message in console
or with dmesg command that tell you the name of the dispositive (if
you have other local scsi disk, can be antoher leter, like /dev/sdc,
for example).
5 - Make two partitions for the raw shared disks. Use fdisk /dev/sda,
or parted /dev/sda, as you prefer. You must create 2 small partitions
(10 to 30 mb for each is sufficient).
6 - Make the partitions that you need for the aplication/service data,
and format it with mke2fs -j /dev/sdaX (X is the partition number).
7 - Configure the raw partitions, adding in /etc/sysconfig/rawdevice
two lines like:
/dev/raw/raw1 /dev/sda1
/dev/raw/raw2 /dev/sda2
and restart rawpartitions with /etc/init.d/rawpartitions restart
8 - Continue with the standard installation described in the redhat
cluster suite manual guide.

I have do all this, and I must say that the cluster is working very
well. The switching speed is very fast, and the general performance is
also very good.

I hope this guide can help somebody now or in the future ;)

Best Regards
Marcos


On Wed, 26 Jan 2005 13:51:25 -0500, Lon Hohberger <lhh at redhat.com> wrote:
> On Wed, 2005-01-26 at 14:42 +0100, Marcos Monge wrote:
> 
> > There is any easy way to upgrade from update 3 to update 4? use
> > up2date to install the latest updates/erratas is sufficient to have
> > the iSCSI features?
> 
> Should be.
> 
> -- Lon
> 
>