Re: [Iscsitarget-devel] ScsiSN

[Ross W. <rsw...@gm...>]

On Jul 13, 2010, at 7:33 AM, "Ross Lyall" <ro...@eq...> wrote:

> Seem to be having the problem with the ScsiSN 0x80 problem with VMware.  I
> have 2 iSCSi appliances presenting 2 seperate storage resources to VMware.
> ESXi sees the second storage appliance as additional paths to the same
> device rather than a second device on which to create an new VMFS datastore.

Are those drbd devices replicating the same datastore?

It may be VMware sees the same datastore presented over two targets and figures it's two paths to the same datastore.

If that is true then you can't use that type of setup as the SCSI reservations won't be respected on both servers.

For that type of fail-over you need heartbeat or pacemaker to manage which server is primary and which is secondary. The secondary server should add a redirect to the primary, or you need to use a shared ip address.

-Ross