We need more information concerning this issue.

1) what EMC storage are the hosts attaching to

2) are the hosts clustered

3) are the hosts native Windows or clients in a VM like VMWare or Hyper-V

4) If attaching to a DMX/VMax are the following FA flags set - OS2007, SCSI3, SPC2, C

5) If attaching to a DMX/VMax and clustered is the Persistent reservation (PER) flag set on all the devices

6) If attaching to Clariion - what model of Clariion and what version of Flare code

7) If attaching to Clariion - what is failovermode set to.

8) is this Fibre Channel or iSCSI.

Sam Claret EMC TSE3

we have seen at least 1 other customer i know of today report this same issue, if you have not done so please open a support ticket with emc support right away.

The issue had to do with an older version of code on the DMX-3000. After upgrading to the DMX code all ofthe powerpath issues were resolved.