Re: [Xen-devel] lvm + iscsi + raid

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

> Currently my environment consists of lvm volumes on Xen0, with iscsi 
> exporting them, which are then imported into the xenU domains and raid1'd 
> there. It would be nice to have a single raid1 volume in xenU which is sliced 
> and diced via lvm, but then i've got lvm + iscsi + raid1 + lvm, which can't 
> be good for performance. Performance isn't a really high concern here but 
> still...
> 
> the idea of running lvm in xen0 is to be able to resize volumes with 
> comparative ease.
> 
> Any comments or suggestions?

I haven't measured it, but I see no reason why LVM should have much of
an impact on block-device performance. It's only doing block address
translation on the data path.

 -- Keir


-------------------------------------------------------
This SF.Net email is sponsored by BEA Weblogic Workshop
FREE Java Enterprise J2EE developer tools!
Get your free copy of BEA WebLogic Workshop 8.1 today.
http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel