Returns information about primary database log devices from the RASD log device repository.
ra_helpdevice [device]
The device name or device ID of the primary database log device.
ra_helpdevice
This command returns information about all primary database log devices recorded in the log device repository.
ra_helpdevice logdev1
This command returns information about the primary database log device named logdev1 in the log device repository.
The ra_helpdevice command returns the following information for each primary database log device:
Log device ID
Primary database name
Log device name
Log device path
The primary database name, log device ID, and log device name are the values returned by the primary database when the Mirror Replication Agent is initialized with the ra_init command, or when the log device repository is updated with the ra_updatedevices command.
The log device path returned by ra_helpdevice is the current specification of that path in the RASD. The default path is the path returned by the primary database, when the Mirror Replication Agent is initialized with the ra_init command, or when the log device repository is updated with the ra_updatedevices command.
Each log device path can be altered by the ra_devicepath command, to “re-map” the path to point to the corresponding mirror log device at the standby site. Mirror Replication Agent uses the log device paths recorded in its RASD to find the mirror log devices, from which it reads the primary database transaction log.
The ra_helpdevice command
does not return information about software
mirror devices created with the Adaptive Server disk mirror command.
See the Adaptive Server documentation for more information about
software disk mirroring.
If ra_helpdevice is invoked with no option, it returns information for all primary database log devices in the RASD log device repository.
If ra_helpdevice is invoked with the device option, it returns information only for the specified primary database log device in the RASD log device repository.
The ra_helpdevice command is valid when the Mirror Replication Agent instance is in either Admin or Replicating state.
