< Previous  | TOC | Index | Next  >

Displaying information about all the data volumes for all the hosts in the RDS

The vrstat -V command displays detailed statistics for all the data volumes associated with the specified RVG on each host in the RDS. The vrstat -V command can be executed from the Primary and the Secondary.

To view information about all the data volumes associated with an RVG in an RDS:

# vrstat -V [local_rvgname]

The argument local_rvgname is the name of the RVG on the local host and is optional. The local RVG name represents its RDS.

If you specify the local_rvgname name, the vrstat -V command displays information about all the volumes associated with the specified RVG. Otherwise, the command displays information about all the volumes in all the RDSs.

The output of this command resembles:

Mon Oct 27 15:49:15 2003

Replicated Data Set hr_rvg:

Data Volume-I/O Statistics:

HOST NAME OPERATIONS BLOCKS AVG TIME(ms)

READ WRITE READ WRITE READ WRITE

seattle hr_dv01 0 0 0 0 0.0  0.0

london hr_dv01 0     412 0 210944 0.0 12.0

Mon Oct 27 15:49:25 2003

Replicated Data Set hr_rvg:

Data Volume-I/O Statistics:

HOST NAME OPERATIONS BLOCKS AVG TIME(ms)

READ WRITE READ WRITE READ WRITE

seattle hr_dv01 0 0 0 0 0.0  0.0

london hr_dv01 0 0 0 0 0.0  0.0

The output of this command includes the following details:

• The host_name of the host for which the information is being displayed. For an RVG in a shared disk group, host_name is the logowner, and the displayed information reflects activity on the logowner host.
• Name of the volume for which the information is being displayed.
• The total number of read and write operations performed on a volume.
• Number of blocks that have been read from or written to the volume.
• Average time in milliseconds to complete the read and write operations.