H3C S5120-SI Series Command Reference Manual page 810

Parameters
recover: Automatically reestablishes communication with all the member devices.
Description
Use the auto-build command to establish a cluster automatically.
Note that:
This command can be executed on a candidate device or the management device.
If you execute this command on a candidate device, you will be required to enter the cluster name
to build a cluster. Then the system will collect candidates and add the collected candidates into the
cluster automatically.
If you execute this command on the management device, the system will collect candidates directly
and add them into the cluster automatically.
The recover keyword is used to recover a cluster. Using the auto-build recover command, you
can find the members that are currently not in the member list and add them to the cluster again.
Ensure that NTDP is enabled, because it is the basis of candidate and member collection. The
collection range is also decided through NTDP. You can use the ntdp hop command in system
view to modify the collection range.
If a member is configured with a super password different from the super password of the
management device, it cannot be added to the cluster automatically.
Examples
# Establish a cluster automatically on the management device.
<Sysname> system-view
[Sysname] cluster
[Sysname-cluster] auto-build
There is no base topology, if set up from local flash file?(Y/N)
y
Begin get base topology file from local flash......
Get file error, can not finish base topology recover
Please input cluster name:aaa
Collecting candidate list, please wait...
#Jul 22 14:35:18:841 2006 Sysname CLST/5/Cluster_Trap:
OID:1.3.6.1.4.1.2011.6.7.1.0.3: member 0.0.0.0.0.224.252.0.0.0 role change, NTDP
Index:0.0.0.0.0.0.224.252.0.0.0, Role:1
Candidate list:
Name
Processing...please wait
Cluster auto-build Finish!
0 member(s) added successfully.
Hops MAC Address
1-17
Device