To configure a cluster between 2 linux VM is it mandatory to use RDM as in MSCS ?
Is there a paper on how to configure cluster between 2 linux VM ?
thanks
No, Linux clusters don't specifically require RDM.
Most Linux clusters use cluster filesystems such as Lustre or RedHat GFS. Generally, your "front end" (host) nodes will communicate with a storage node via a network transport (ie. iSCSI, GNBD) so an RDM mapping isn't completely necessary.
Check out:
http://www.redhat.com/software/rha/gfs/
Regards,
Paul
So can I start creating a cluster-in-a-box with 2 VM on the same ESX host using a "shared"" vmdk on a SAN DS and later , when a second ESX host is been available vmotion one VM to the second host ?
Thanks
Yes... provided that the Linux VMs include some form of clustered filesystem.
Paul