4.1. Monitoring General Storage Cluster ParametersΒΆ
By monitoring general parameters, you can get detailed information about all components of a 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.
Parameter | Description |
---|---|
Cluster | Overall status of the cluster:
|
Space | Amount of disk space in the cluster:
Note 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. |
CS nodes | 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
|
License | Key number under which the license is registered on the Key Authentication server and license state. |
Replication | Replication settings. The normal number of chunk replicas and the limit after which a chunk gets blocked until recovered. |
IO | Disks IO activity in the cluster:
|