san mirror error see vmfs after make mirror active
I synch mirror two IBM san DS4500 => DS4800 and 2 VMFS lun 1,2 of 1 TB
When I want to make lun on DS 4800 lun active I shut down all my vm change brocade zoning for only see DS 4800 controler rescan san on vmware, I see from vmware all my new path (vmha1:0:1 become think link vmhba1:2:1 ans vmhba2:1:2 become vmhba2:3:2 for example) but nothing is see on storage no vmfs ar mount in /vmfs/volumes/
So I rechange DS 4500 back in production and restart my VM with no error...
You can not write to an active sync or async mirror. You would have to stop the mirror or make a copy of it and then use the copy as writable.
As well if the ESX host detects the same UUID on a diferent LUN it will need to either resignature the volume in order to use it or you will have to change DisallowSnapshotLUN =1 to 0 and this will accept the volume. Be very careful with that function, have a look at this ppt it explains the option very well.