HP StorageWorks Storage Mirroring for Linux User's Guide (T2558-96078, February 2008)
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Monitoring a mirror
1. To view the connection on the Management Console, highlight the source machine on the left pane and the connection
will appear on the right pane. Use the horizontal scroll bar at the bottom of the right pane to view the
Mirror Status
column; the status of the mirroring operation for this connection is displayed. The possible states are:
Idle— No mirroring activity is taking place.
Mirroring—If the size of the replication set was not calculated prior to the connection being established, the status
indicates Mirroring.
Percentage Complete—If the size of the replication set was calculated prior to the connection being established,
the percentage of the mirror that is complete will be displayed.
Paused—No new mirror data is being written to the mirror queue.
Waiting—The source has finished sending the data to the target, but the target has not finished writing to the disk.
Verifying—The source is verifying if the data on the source and target are identical.
Removing Orphans—Storage Mirroring is checking for orphan files within the target path location that exist on the
target but not on the source. These files will be removed.
2. Additional mirroring statistics are also available by using the horizontal scroll bar to display the following columns:
Sent (Bytes)—The total number of mirror and replication bytes that have been sent during this connection.
Sent Mirror (Bytes)—The total number of mirror bytes only that have been sent during this connection.
Skipped Mirror (Bytes)—The total number of bytes that have been skipped when performing a difference or
checksum mirror. These bytes are skipped because the data is the same on the source and target machines.
Remaining Mirror (Bytes)—The total number of mirror bytes only that remain to be sent to the target.
NOTE: There are other statistics available through the Management Console, but they are not displayed by default.
To change the statistics display, see
Customizing the statistics on page 13-4.
You may see replication operations during a mirror, even if you are not currently replicating any data.
These operations are pre-allocating space in order to avoid fragmentation on the target. These operations
are normal.