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 ]
Environment
- RHEV 3.4
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