Hello  You need to add some environmental factors for this question - like the OS type and whether the node is clustered.  All other things being equal in a non clustered host you should have no issue between the 2 devices, however it is not normal to set the SCSI3 persistent reservation flag on a non shared device.  In a clustered node you may well be able to mount both however with certain clusters you will be unable to failover/failback the device with the SCSI3 bit set DISABLED.  I hope this helps?  Sam Claret EMC TSE3
hi -would like to check what will differ if i mount below two dev to a host since one dev is SCSI-3 presistent reserve enabled and other is disabled.  # symdev -sid 25 show 1234 | grep SCSI-3    SCSI-3 Persistent Reserve: Enabled# symdev -sid 25 show ABCD | grep SCSI-3    SCSI-3 Persistent Reserve: Disabled
SCSI-3 Persistent Reserve: Enabled & Disabled