A few years ago, I migrated a few Windows 2003 Server servers which were SQL clusters from our CX3 to our new VNX5300 using the following commands:

#setup the copy session and record the handle

powermig setup -src harddisk24 -tgt harddisk26 -techtype hostcopy

And it just worked.

Now, we are migrating a different set of Windows 2003 Server servers from the VNX SAN to our new UNITY SAN, and I tried the above command and surprisingly I get the following error:

C:\user>powermig setup -src harddisk1 -tgt harddisk4 -techtype hostcopy

Setup migration? [yes]/no: yes

PPME error(90): Source is a cluster disk (use -cluster to setup a cluster migration)

C:\user>

Where did this come from???

All I can think of is that the newer version of PowerPath 5.7 SP4 now needs to use cluster resources in order to migrate LUNs....is this correct?

If so then because the servers are Windows 2003 Server, I cannot start the migration until I take the disk resources offline so that PPMig can configure the dependencies, and only then I can start the migration and then I'll need another outage when I switch the disks around?