Sometimes Data center fails with message "Fails to reconstruct master domain for data center"

Issue

Sometimes, on RHEV 3.4, issues happen with the data center :

The symptoms are:
o the data storage of the data center becomes red from the manager interface
o the message "Failed to Reconstruct Master Domain for Data Center support_fc"
comes from the RHEV event log and loop
o the data center VMs cannot restart
o the LUN PV disappears

# listpart
Storage devices detected                                [4 device(s)]
1) Name: 200004c7f0dad0000, SAN model:  NEC,iStorage, Size:  142808 MB
2) Name: 200004c7f0dad0001, SAN model:  NEC,iStorage, Size:  1042603 MB  <------
3) Name: sda, Model: DELL PERC H710P (scsi), Size:  146163 MB
4) Name: sdb, Model: Dell Internal Dual SD (scsi), Size:  2041 MB
# pvs
  PV                              VG   Fmt  Attr PSize   PFree 
  /dev/mapper/200004c7f0dad0000p2 VG0  lvm2 a--  132,78g 91,06g
  /dev/sda3                       VG1  lvm2 a--  135,81g 81,12g
# pvscan
  PV /dev/mapper/200004c7f0dad0000p2   VG VG0   lvm2 [132,78 GiB / 91,06 GiB free]
  PV /dev/sda3                         VG VG1   lvm2 [135,81 GiB / 81,12 GiB free]
  Total: 2 [268,59 GiB] / in use: 2 [268,59 GiB] / in no VG: 0 [0   ]