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Yes, that would work. You only need heartbeat if you choose to use EVMS. If you don't use EVMS but want to use LVM2, you need clvmd which works with the RedHat Cluster tools. If you don't want to use either of those, you don't have to, and you can just pick a cluster-enabled filesystem to use on the nodes.
-Nick
>>> On Wed, Jan 23, 2008 at 10:08 AM, Alejandro Weintz Aguilar <alejandro@xxxxxxxxxxxxxxxxx> wrote:
A setup with debian + GB network + Open-Iscsi +heartbeat would work?
thx
On Wed, 2008-01-23 at 08:50 -0700, Nick Couchman wrote:
> I have my XEN servers on a SAN and I use OCFS2 and EVMS to create
> storage areas for my servers. This also requires that you configure
> heartbeat, as the cluster part of EVMS uses heartbeat. I've run into
> a couple of issues with this method, though - first, I'm not able to
> resize volumes on EVMS. Second, I've had some trouble getting
> heartbeat to work correctly, especially when adding nodes to it. That
> could just be my lack of experience with the tool, though.
>
>
> Based on my experience, I'd suggest something like this:
>
> 1) If you don't have a SAN, get a machine that has a good deal of
> built-in redundancy (redundant power supplies, HARDWARE RAID unit,
> etc.) and set it up as an iSCSI server (you can use iSCSI Enterprise
> Target - ietf - for this). Use dual network cards and some sort of
> redundant Ethernet setup (bonding, for example) to connect this
> machine to a switch. Even the cheapest of "smart switches" (NetGear
> GS108T, for example) support link aggregation.
>
> 2) Use either iSCSI HBAs (Qlogic has some nice ones) or the iSCSI
> software initiator and connect your XEN servers to the iSCSI Target.
>
> 3) Use LVM2 with clvmd (Cluster LVM Daemon) to manage volumes. This
> will give you the flexibility to choose whether you'd like to create
> one big storage area and store the disk images as files in that folder
> or configure each VM to have its own LVM volume.
>
> 4) If you choose to create a large file share and mount it, use OCFS2
> or GFS on the share. Configuration of either of these filesystems is
> relatively easy. GFS has the plus of supporting POSIX ACLs, but I'm
> not sure that really matters on XEN servers, so compare them and pick
> the ones you like.
>
>
> -Nick
>
> >>> On Wed, Jan 23, 2008 at 8:04 AM, Alejandro Weintz Aguilar
> <alejandro@xxxxxxxxxxxxxxxxx> wrote:
>
>
> I want to build on Open Source tools a high availabitiy server to
> store
> my images, someone with suggestions? experiences plz. really
> aprreciate.
>
> Started to try Gluster but yesterday discussion pointed me very
> important things.
>
> thx
>
>
>
>
>
>
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