San Policy Server 2008 enterprise and advanced

Windows server 2008 (enterprise and datacenter) has introduced a new default disk policy that causes a long delay to boot a server while using SRM to bring our servers online. The SAN policy determines whether a newly discovered disk is brought online or remains offline, and whether it is made read/write or remains read-only. The default setting of forcing all SAN disks to remain offline the first time a disk is discovered can cause applications like Exchange and SQL to take a very long time to fail which in turn will cause the server a very long time to get to a login prompt.

In order to reduce the time it takes to bring our production environment online I had to change this setting from the default of offline to online on our production server. Recoverpoint replicates these changes to our DR site and now SRM is able to bring the server online quicker and get applications online quicker. In the past, the server would take a very long time to come online because services such as Exchange and SQL would take a very long time to bomb out before we were able to login to the server, online the disk and reboot again.

Here are the steps to check to see what your current setting is:
open up a command prompt
type diskpart
type san
if it is currently says SAN Policy : Offline Shared
then you will need to type the following to resolve this
SAN POLICY=OnlineAll

You may also want to add this into your unattended build or into your vmware templates etc to ensure that you don't run into this again in the future.