Re: [Xen-users] Xen and iSCSI

[Markus Hochholdinger <Markus@xxxxxxxxxxxxxxxxx>]

Hi,

Am Sonntag, 29. Januar 2006 15:02 schrieb Pasi Kärkkäinen:
[..]
> Wouldn't it be better to use iSCSI initiator in dom0, and map luns from two
> different storage servers (and SANs).. raid1 them, and create LVM (or CLVM)
> on top of raid.. and export LV to each domU.

define better!? It is easier to set up. But if you want to use migration it 
becomes complicatet. If you use more than one Xen host you have to setup on 
each Xen host the block devices (iscsi, raid, lvm). And i'm not sure what 
happens if you have two active raid1 on the same iscsi devices on different 
Xen hosts!?


> Then you could more easily upgrade the storage servers and only rebuild the
> raid in dom0.. domU's wouldn't see any problems / failures.

Well, rebuild will take the same amount of network traffic. I'm not sure if it 
is really better?
My idea is to have the domU not depend on the block device configuration of 
dom0. So its easier to migrate domUs.


-- 
greetings

eMHa

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