8.7. Monitoring Cluster Status¶
You can use the
shaman top and
shaman stat commands to monitor the overall status of a cluster and cluster resources. The
shaman stat command shows a snapshot of the current cluster status and clustering resources while
shaman top displays a dynamic real-time view of the cluster. The following shows an example output of the
shaman stat command:
# shaman stat Cluster 'vstor1' Nodes: 3 Resources: 8 NODE_IP STATUS RESOURCES M 10.30.24.176 Active 0 CT, 0 VM, 1 ISCSI * 10.30.25.33 Active 1 CT, 3 VM, 1 ISCSI 10.30.26.26 Active 0 CT, 0 VM, 2 ISCSI CT ID STATE STATUS OWNER_IP PRIORITY 101 stopped Active 10.30.25.33 0 VM NAME STATE STATUS OWNER_IP PRIORITY vm1 stopped Active 10.30.25.33 0 vm2 running Active 10.30.25.33 0 vm3 stopped Active 10.30.25.33 0 ISCSI ID STATE STATUS OWNER_IP PRIORITY iqn.2014-04.com.pstorage:ps1 running Active 10.30.24.176 0 iqn.2014-04.com.pstorage:ps2 running Active 10.30.25.33 0 iqn.2014-04.com.pstorage:ps3 running Active 10.30.26.26 0
The table below explains all output fields:
Name of the cluster.
The “M” next to the server denotes that the server is
the main server in the cluster (called the master
server), and the asterisk (*) indicates the server
|Nodes||Number of servers with enabled HA support in the cluster.|
|Resources||Number of resources
|NODE_IP||IP address assigned to the server.|
Server status. It can be one of the following:
|RESOURCES||Resources hosted on the server.|
|CT ID||Container ID.|
|VM NAME||Virtual machine name.|
|ISCSI ID||iSCSI target name.|
|STATE||Denotes whether the virtual machine/container is running or stopped.|
HA status of the virtual machine, container, or iSCSI
target (as reported by
|OWNER_IP||IP address of the server where the virtual machine, container, or iSCSI target is hosted.|
|PRIORITY||Current priority of the virtual machine/container. For details, see Configuring HA Priority for Virtual Machines and Containers.|
The output of the
shaman top command is similar to that of
shaman stat. Additionally, you can use keyboard keys to change the command output on the fly. The following keys are supported:
- g: Group or ungroup resources by their status.
- v: Show or hide additional information.
- ENTER or SPACE: Update the screen.
- q or Esc or CTRL-C: Quit.
- h: Show the help screen.