The Cluster section provides information on the RAM and disk usage information for your cluster.
For the RAM information you are provided with a graphical representation of your RAM situation, including:
Total in Cluster
Total RAM configured within the cluster. This is the total amount of memory configured for all the servers within the cluster.
The amount of RAM allocated to data buckets within your cluster.
The amount of RAM not allocated to data buckets within your cluster.
The amount of memory across all buckets that is actually in use (i.e. data is actively being stored).
The amount of memory that is unused (available) for storing data.
The Disk Overview section provides similar summary information for disk storage space across your cluster.
Total Cluster Storage
Total amount of disk storage available across your entire cluster for storing data.
Usable Free Space
The amount of usable space for storing information on disk. This figure shows the amount of space available on the configured path after non-Couchbase files have been taken into account.
The quantity of disk space in use by data other than Couchbase information.
The amount of disk space being used to actively store information on disk.
The free space available for storing objects on disk.