WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] iscsi vs nfs for xen VMs

On Fri, Aug 7, 2009 at 8:48 AM, Jia Rao<rickenrao@xxxxxxxxx> wrote:
> I searched the Internet, it seems that iscsi is not intended for sharing a
> single LUN between multiple hosts.

the point isn't iSCSI, it's the filesystem in it.

a 'normal' filesystem (ext3, XFS, JFS, etc) isn't safe to mount at
multiple hosts simultaneously.

a cluster filesystem (GFS, OCFS, clusterXFS, etc) is specifically
designed for it.

in short, you have three options for sharing storage between Xen boxes:

1: NFS with file-based images
2: share a LUN, put a cluster filesystem on it, and put file-based images inside
3: multiple LUNs, each one is a blockdevice-based image

-- 
Javier

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users