6.4. Monitoring Clients¶

By monitoring clients, you can check the status and health of servers that you use to access virtual machines. To monitor clients, use the vstorage -c <cluster_name> top command. For example:

The command above shows detailed information about the stor1 cluster. The monitoring parameters for clients (highlighted in red) are as follows.

CLID

Client identifier (ID).

LEASES

Average number of files opened for reading/writing by the client and not yet closed, for the last 20 seconds.

READ

Average rate, in bytes per second, at which the client reads data, for the last 20 seconds.

WRITE

Average rate, in bytes per second, at which the client writes data, for the last 20 seconds.

RD_OPS

Average number of read operations the client made per second, for the last 20 seconds.

WR_OPS

Average number of write operations the client made per second, for the last 20 seconds.

FSYNCS

Average number of sync operations the client made per second, for the last 20 seconds.

IOLAT

Average/maximum time, in milliseconds, the client needed to complete a single IO operation, for the last 20 seconds.

HOST

Client hostname or IP address.