Forum Discussion

Jamesb_china's avatar
Jamesb_china
Level 3
10 years ago

vxfen module cause system panic after I/O fencing

I have a three-node cluster configuration: vcs1, vcs2, vcs3.  Using three ISCSI disks (by SCST iscsi target simulator) as fendg.  # vxfenadm   -d I/O Fencing Cluster Information: ===========...
business continuity
Cluster Server
Clustering
Failover
High availability
Linux
  • TonyGriffiths's avatar
    TonyGriffiths
    10 years ago

    Hi,

    If both private networks fail, then each node will race for the co-ordinator disks. If a node does not control of the majority of the disks, then it will panic and leave the cluster.

     

    The VCS administrators guide will have more on this topic, here is the link to the 6.1/Linux docs

    https://sort.symantec.com/documents/doc_details/sfha/6.1/Linux/ProductGuides/

     

    cheers

    tony

starflyfly's avatar
starflyfly
Level 6
10 years ago

HI,

  It's by design.

  When you disconnecting  network for vcs3, it seperate to two sub cluster. vcs1&vcs2 in one sub cluster,

vcs3 in another sub cluster.

  vcs3  lose the race for co-ordinator disks, it will panic the server.