Device concurrent maintenance
Device concurrent maintenance provides the capability to power down and remove a failed disk unit, tape unit, or optical unit. It also provides the capability to insert and power up a replacement unit or a new unit while the system is powered on and in use.
For a configured disk unit device, this concurrent maintenance action is only permitted when the disk unit device has data storage protection. For example, if the disk unit is one member of a mirrored pair or is a member of a data parity array.
To perform concurrent maintenance on a device, specify the location of the device by providing the physical location of the device. If you do not know the location, use the following information to determine the correct location.
This field represents the position of the device within the enclosure as labelled on the frame.
Device resource name
This field shows the logical name assigned to the resource that is the target of device concurrent maintenance. An example of the resource name for a disk unit would be 'DD037'. See the information for the specific resource either in the hardware service manager displays or in the Display Disk Configuration displays.
- Enter the information that was gathered from the Disk Unit Hardware Resource Information Details display.
- Press Enter. Note: If the device is unable to report in or you are installing a device into an empty slot, use Physical Location instead of Resource Name.
Action to be performed
If removing the device, specify 1. If inserting the device, specify 2.
Time delay needed in minutes
Enter 00 in this field if you do not want any delay before the process begins. If you enter a value in this field, the device will wait that long after you press Enter to begin the operation. Typically you will enter a value if the device is at a different location and it will take you a while to get to that location. The device might be in a different room, for example.
For details about IOA or IOP concurrent maintenance, see Concurrent maintenance.