Link between Site A and Mediator down and Site B down
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Check the status of Mediator from Site A.
C1_cluster::*> snapmirror mediator show Mediator Address Peer Cluster Connection Status Quorum Status ---------------- ---------------- ----------------- ------------- 10.237.86.17 C2_cluster unreachable true C1_cluster::*> snapmirror list-destinations Progress Source Destination Transfer Last Relationship Path Type Path Status Progress Updated Id ----------- ----- ------------ ------- --------- ------------ --------------- vs0:/cg/src_cg_1 XDP vs1:/cg/dst_cg_1 OutOfSync - - bba7d354-06f6-11eb-9138-005056acec19
Check Site B connectivity:
C1_sti78-vsim-ucs188a_cluster::*> cluster peer show Peer Cluster Name Cluster Serial Number Availability Authentication ------------------------- --------------------- -------------- -------------- C2_cluster 1-80-000011 Unavailable ok
Check the consensus status on SM-BC volume:
C1_cluster::*> volume show zrto_cg_894191_188b_RW1 -fields smbc-consensus vserver volume smbc-consensus ------- ----------------------- ------------------ vs0 zrto_cg_894191_188b_RW1 Awaiting-consensus
Complete the following steps to override SM-BC consensus and forcefully resume I/O on Site A:
-
Unmap the LUNs on Site A.
-
Issue the snapmirror release command using the
-force
andoverride-smbc-consensus
option on Site A. -
Remap the LUNs.
-
First, bring up Mediator, and then bring up the Site B nodes.
-
Resync the consistency group relationship using
snapmirror resync
. -
After Site B is up, verify that the consistency group relationship is up and is in sync.
-
Perform a LUN rescan on the host to restore all paths to the LUNs.