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[Xen-users] Re: 1/2 OFF-TOPIC: How to use CLVM (on top AoE vblades) inst

To: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Re: 1/2 OFF-TOPIC: How to use CLVM (on top AoE vblades) instead just plain LVM for Xen based VMs on Debian 5.0?
From: Thiago Camargo Martins Cordeiro <thiagocmartinsc@xxxxxxxxx>
Date: Wed, 25 Feb 2009 04:08:05 -0300
Delivery-date: Tue, 24 Feb 2009 23:08:49 -0800
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I'll need the GNBD in somewhere?

Sorry for the off-topic, but I doing some research to find out a better low cost storage to Xen clusters. I'm learning about moving my dom0s to OpenSolaris, to install ZFS and see its pool storage capabilities... ZFS can be what I need to the storage, but OpenSolaris is good to be a dom0? Like Linux 2.6.18 is?

I have 20 dom0, each with 2 500GB discs, totalizing 20T of storage space in my network. So, I want to make a "big-redundant-array" with this 40 discs. So, if one, maybe two or even five dom0s are out, all my data and my VMs will be available. Only the cluster administrator will receive a note about the dom0 failures.

For now, if I see the CLVM on top of AoE in my Debian 5.0, some things will be clarified in my mind...   =)


2009/2/25 Thiago Camargo Martins Cordeiro <thiagocmartinsc@xxxxxxxxx>

 I have setup my hard disc with 3 partitions:

1- 256MB on /boot;
2- 2GB on / for my dom0 (Debian 5.0) (eth0 default bridge for guests LAN);
3- 498GB exported with vblade-persist to my network (eth1 for the AoE protocol).

 On dom0 hypervisor01:
vblade-persist setup 0 0 eth1 /dev/sda3
vblade-persist start all

 How to create a CVLM VG with /dev/etherd/e0.0 on each of my dom0s? Including the hypervisor01!

 I do not want to use GFS2/OCFS2 on top of CLVM, since I just want to provide live-motion. I'll never try to setup two
simultaneous domUs accessing the same CVLMs logical volumes.

 If someone can help me I will appreciate!

 This looks like the best way to create a low cost shared storage, I'm right? I do not want NFS for my domUs...


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