5.1. Monitoring General Cluster Parameters¶
By monitoring general parameters, you can get detailed information about all components of a Virtuozzo Storage cluster, its overall status and health. To display this information, use the
vstorage -c <cluster_name> top command, for example:
The command above shows detailed information about the
stor1 cluster. The general parameters (highlighted in red) are explained in the table below.
Overall status of the cluster:
Amount of disk space in the cluster:
For more information on monitoring and understanding disk space usage in clusters, see Understanding Disk Space Usage
|MDS nodes||Number of active MDS servers as compared to the total number of MDS servers configured for the cluster.|
|epoch time||Time elapsed since the MDS master server election.|
Number of active chunk servers as compared to the total number of chunk servers configured for the cluster.
The information in parentheses informs you of the number of
Key number under which the license is registered on the Key Authentication server and license state.
For more information on licenses, see Managing Virtuozzo Storage Licenses
|Replication||Replication settings. The normal number of chunk replicas and the limit after which a chunk gets blocked until recovered.|
Disks IO activity in the cluster: