HP Brocade 8/12c Fabric OS Encryption Administrator's Guide - Page 239
Two node EG split manual recovery example, cryptocfg, show -groupcfg, State
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Encryption group merge and split use cases 6 Two node EG split manual recovery example The following example is a case where you have an EG split of a two node encryption group with nodes named Node181 and Node182. Node181 has WWN 10:00:00:00:05:1e:33:33 and Node182 has WWN 10:00:00:05:1e:55:55:55. 1. Perform the cryptocfg --show -groupcfg command from every node in your setup. If the EG is split, the Encryption Group state from each node will show up as CLUSTER_STATE_DEGRADED. If some EG Nodes are showing as CLUSTER_STATE_CONVERGED and others as CLUSTER_STATE_DEGRADED then contact technical support. In our case, assume the User has performed this command on both Node181 and Node182 and in each case the result was 'CLUSTER_STATE_DEGRADED'. 2. Determine which node will be encryption group leader when the EG is re-converged. In this example, Node182 is to become the EG Leader for the EG. 3. Deregister every encryption group node not in a DISCOVERED state. From the node that you want to be the encryption group leader when the EG is re-converged (Node182 in this example), determine the encryption group state. Node182:admin->cryptocfg --show -groupcfg The output of this command should show the Encryption Group state as CLUSTER_STATE_DEGRADED. Deregister the group member nodes. In this example, this is Node181 as identified by its WWN. Node182:admin->cryptocfg --dereg -membernode 10:00:00:05:1e:55:33:33 Display the encryption group state again. Node182:admin->cryptocfg --show -groupcfg Node182 should now show up with an Encryption Group state of CLUSTER_STATE_CONVERGED. In this two node example, there is only one other node in the encryption group, and therefore the is only one node to deregister. When you have a 3:1 split or a 2:2 split, issue the following command from the group leader node you are keeping. Switch:admin->cryptocfg --show -groupmember -all The output of this command will show you every node that was ever a part of this encryption group. Look at State: for all nodes to determine which ones to deregister. Only the nodes with a state of DEF_NODE_STATE_DISCOVERING must be deregistered from the group leader node you are keeping. The example below shows that the node with WWN 10:00:00:05:1e:c1:9a:86 needs to be deregistered. Switch:admin > cryptocfg --show -groupmember -all NODE LIST Total Number of defined nodes: Group Leader Node Name: Encryption Group state: 4 10:00:00:05:1e:54:22:44 CLUSTER_STATE_DEGRADED .... Output truncated... Node Name: State: 10:00:00:05:1e:c1:9a:86 DEF_NODE_STATE_DISCOVERING Fabric OS Encryption Administrator's Guide 219 53-1002159-03
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