Re: Cluster in virtual machines ???

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With Xen you can present the disk to both servers simultaneously.  In the device entry it is important to specify that the device mode is w!.  The ! tells Xen to allow both VMs to access it at the same time.

I do this with AoE (ATA over Ethernet).  kblade or vblade could do this for you as well.

On Mar 21, 2007, at 1:12 AM, nirmal tom wrote:

hi,
Its possible through iscsi,gnbd even NFSv4.But iscsi and gnbd makes sense.
Open source project is


and is working too nice for me

regards,
Nirmal Tom
From: qua nong <quanong_os@xxxxxxxxx>
Reply-To: linux clustering <linux-cluster@xxxxxxxxxx>
To: linux clustering <linux-cluster@xxxxxxxxxx>
Subject: Cluster in virtual machines ???
Date: Wed, 21 Mar 2007 11:45:48 +1100 (EST)

Hi,

I have only 1 physical server with a number of local harddisks (no SAN or external hardisks).
I would like set up at least 2 virtual machines using either xen or vmware server, then cluster the virtual machines.

I wonder how could  the same disks be presented to both virtual machines. i.e. both virtual machines can share the same disks ?
Is it possible to configure the iSCSI to both virtual machines ?

The problem is I donnot have any SAN or external storage which  can be shared to both servers.

QN


-- 
Jayson Vantuyl
Systems Architect


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