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[Xen-users] Image file or partitions over an iSCSI?

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Subject: [Xen-users] Image file or partitions over an iSCSI?
From: Ivan Porro <pivan@xxxxxxxxxxxxx>
Date: Fri, 21 Sep 2007 09:57:06 +0200
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Dear all,

I will setup soon an Infortrend iSCSI SAN device with a raid6 volume and a DELL PE1950 (8 VMs) with a Qlogic iSCSI HBA (server to be duplicated at later time for redundancy).

My priorities are:

1) VMs on the iSCSI SAN in order to boot them also by another server if the first one fails

2) performances

3) live migration is a non mandatory option (i.e. I can suffer to shutdown machines and restart them with minor service interruption, maybe with a heartbeat script)

My questions are:

The server(s) will have a raid 1 with two 74GB sas 15krpm drives.
Where do you would store your VMs?
You would use partitions (i.e. a LUN for each VM) or images?
Swap files could be on the local disks?
Does a "local disk images and overnight mirror to the SAN" approach would be better in this case?

Religion question (optional...):

Waht would you prefere?

[ ] CentOS 5 with out of the box Xen
[ ] CentOS 5 with latest Xen
[ ] Debian 3.1 with latest Xen
[ ] Debian 4 with latest Xen


thank you anyway


I'm available to perform tests on the above hardware if XenSource is interested, tell me what and how (from the 2nd week of October)
voice: +39 010 353 2789
fax:   +39 010 353 2948

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