Cluster without shared disk, or over shared over NFS

[Brian Beaver]

Thanks for the good info.  So to summarize, Redhat clustering still appears
to require "local" disks.  The Netapp iSCSI solution just helps the drives
appear local to the O/S.  Any idea if Redhat clustering is allowed without
the shared drive requirement, similar to Veritas clustering using multiple
NIC's for heartbeats instead of a shared drive partition?

-----Original Message-----
From: piranha-list-bounces at redhat.com
[mailto:piranha-list-bounces at redhat.com] On Behalf Of Marcos Monge
Sent: Thursday, January 27, 2005 3:24 PM
To: Piranha clustering/HA technology
Subject: Re: Cluster without shared disk, or over shared over NFS

Sorry, there is an error in the step 3. To obtain the IQN (iscsi uniq
identifier) of each linux server, you must start the
/etc/init.d/iscsi, and look the /etc/initiatorname.iscsi file, that
have the iqn asigned to the linux server.

Best regards
marcos

On Thu, 27 Jan 2005 21:12:08 +0100, Marcos Monge <mmonge at gmail.com> wrote:
> 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
> >
> >
>

_______________________________________________
Piranha-list mailing list
Piranha-list at redhat.com
https://www.redhat.com/mailman/listinfo/piranha-list