HP StorageWorks Storage Mirroring for Linux User's Guide (T2558-96078, February 2008)

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Monitoring a mirror
Storage Mirroring offers a variety of methods for monitoring Storage Mirroring mirroring. Statistics include information like
connection up-time, target status, bytes queued or sent, and so on. The informational data includes processing notifications,
warnings or errors. Below is a brief description of how four of the monitoring methods are applicable to the Storage Mirroring
connection. For detailed information on these and other monitoring methods, see
Monitoring Tools on page 13-1.
 Text Client—The Storage Mirroring Text Client window displays a minimal number of statisical and informational data
on screen.
 The DTCL status command also displays a minimal number of statisical data. Identify the connection ID by locating the
number in the left column of the Text Client window and use the status command to display the mirror information.
 LogViewer—LogViewer is a utility within Storage Mirroring that gathers Storage Mirroring alerts and informational
messages. Alerts are proccessing notifications, warnings, and error messages. For detailed steps on how to use
LogViewer, see
LogViewer on page 13-32.
 DTStat—DTStats is a utility that takes snapshots of Storage Mirroring statistical data and writes the information to a file.
For detailed steps on how to use DTStat, see DTStat on page 13-23.
Command STATUS
Description Requests connection and statistical information
Syntax
STATUS CONNECTION <con_id>
| TRANSMISSION <con_id>
| MIRROR <con_id>
| REPLICATION <con_id>
Options  CONNECTION—Displays connection information for the connection ID specified
 TRANSMISSION—Displays transmission information for the connection ID specified
 MIRROR—Displays mirroring information for the connection ID specified
 REPLICATION—Displays replication information for the connection ID specified
 con_id—Connection ID assigned to the source/target connection
Examples
 status connection 1
 status replication 1
NOTE: 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.