pvcreate is giving me an error 'Device /dev/emcpowera not found (or ignored by filtering)'

Issue

• pvcreate is giving me an error message 'Device /dev/emcpowera not found (or ignored by filtering)'.

[root@server002 ~]# pvcreate --uuid bzPp9D-9jus-Ncr5-kkhG-geKZ-Gg7l-PpKgSQ /dev/emcpowera 
Device /dev/emcpowera not found (or ignored by filtering). 

• I have tried to restore the VG config, but here is the error.

[root@server002 backup]#  pvcreate --restorefile vg02 --uuid bzPp9D-9jus-Ncr5-kkhG-geKZ-Gg7l-PpKgSQ /dev/emcpowera 
Couldn't find device with uuid 'bzPp9D-9jus-Ncr5-kkhG-geKZ-Gg7l-PpKgSQ'. 
Device /dev/emcpowera not found (or ignored by filtering).

• Device appears to be active

[root@server002 tmp]# powermt display dev=emcpowera 
Pseudo name=emcpowera 
Symmetrix ID=000190101334 
Logical device ID=0B78 
state=alive; policy=SymmOpt; priority=0; queued-IOs=0 
============================================================================== 
---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats --- 
###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors 
============================================================================== 
   3 lpfc                      sdal      FA  9aA   active  alive      0      0 
   1 lpfc                      sdt       FA  8aA   active  alive      0      0