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Re: [Xen-users] Xen and iSCSI

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen and iSCSI
From: "Gino LV. Ledesma" <gledesma@xxxxxxxxx>
Date: Sat, 28 Jan 2006 09:42:55 -0800
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Using CentOS 4.2 (which came with a cleanly packaged
iscsi-initiator-tools) I've gotten it to work and I find the
performance preferrable to NFS Root. I still haven't gotten the hang
of booting using iSCSI Root over the network, but it should just be a
couple more adjustments to the initrd.

Currently, I have dom0 serve as the iSCSI initiator and then have the
domUs use the block devices. Some limitations I've run into:
- I can't manage to get the iSCSI initiator to see changes to the
exported LUNs (e.g. block device has been grown, or see more LUNs)
- For multiple LUNs from different iSCSI Targets, establish a fixed
order/names for the block devices

Other than that, you shouldn't have too much problems with it. :-)

- gino ledesma

On 1/28/06, Markus Hochholdinger <Markus@xxxxxxxxxxxxxxxxx> wrote:
> hi,
> has anyone experience with the use of iscsi (as iscsi initiator) in Xen (which
> Xen version?). Does it work in dom0 and domU?
> Does it work (good)? Or are there any problems (besides the normal linux
> problems with iscsi)? How is the performance in domU?
> Background is that i am planing virtual servers within xen and they should get
> their disks from the network so that i can perform live migration.
> Has anyone a setup like this working?
> --
> greetings
> eMHa
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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