stops if an unrecoverable read error is detected. To help prevent possible problems with
the new drive, the service aid stops if the number of bad blocks being reassigned
reaches a threshold.
To use this service aid, both the old and new disks must be installed in or attached to
the system with unique SCSI addresses. This requires that the new disk drive SCSI
address must be set to an address that is not currently in use and the drive be installed
in an empty location. If there are no empty locations, then one of the other drives must
be removed. When the copy is complete, only one drive can remain installed. Either
remove the target drive to return to the original configuration, or perform the following
procedure to complete the replacement of the old drive with the new drive:
1. Remove both drives.
2. Set the SCSI address of the new drive to the SCSI address of the old drive.
3. Install the new drive in the old drive’s location.
4. Install any other drives (that were removed) into their original location.
To prevent problems that can occur when running this service aid from disk, it is
suggested that this service aid be run, when possible, from the diagnostics that are
loaded from removable media.
Display/Alter Sector
Note: Use caution when you use this service aid because inappropriate modification to
some disk sectors can result in the total loss of all data on the disk.
This selection allows the user to display and alter information on a disk sector. Sectors
are addressed by their decimal sector number. Data is displayed both in hex and in
ASCII. To prevent corrupted data from being incorrectly corrected, the service aid does
not display information that cannot be read correctly.
Display Configuration and Resource List
If a device is not included in the Test List or if you think a Diagnostic Package for a
device is not loaded, check by using the Display Configuration and Resource List task.
If the device you want to test has a plus (+) sign or a minus (-) sign preceding its name,
the Diagnostic Package is loaded. If the device has an asterisk (*) preceding its name,
the Diagnostic Package for the device is not loaded or is not available.
This service aid displays the item header only for all installed resources. Use this
service aid when there is no need to see the vital product data (VPD). (No VPD is
displayed.)
Display Firmware Device Node Information
This task displays the firmware device node information that appears on CHRP
platforms. This service aid is intended to gather more information about individual or
particular devices on the system. The format of the output data may differ depending on
which level of the AIX operating system is installed.
Chapter 6. Introducing Tasks and Service Aids
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