Note: Only resources that were previously detected by the diagnostics and have notbeen deleted from the Diagnostic Test List are listed. If no resources areavailable to be deleted, then none are listed.Disk Maintenancev Disk to Disk Copyv Display/Alter SectorDisk to Disk CopyNotes:1. This service aid cannot be used to update to a different size drive. The service aidonly supports copying from a SCSI drive to another SCSI drive of similar size.2. Use the migratepv command when copying the contents to other disk drive types.This command also works when copying SCSI disk drives or when copying to adifferent size SCSI disk drive. Refer toSystem Management Guide: OperatingSystem and Devices for a procedure on migrating the contents of a physicalvolume.This selection allows you to recover data from an old drive when replacing it with a newdrive. The service aid recovers all LVM (Logical Volume Manager) software reassignedblocks. To prevent corrupted data from being copied to the new drive, the service aidaborts if an unrecoverable read error is detected. To help prevent possible problemswith the new drive, the service aid aborts if the number of bad blocks being reassignedreaches a threshold.This service aid requires that both the old and new disks be installed in or attached tothe system with unique SCSI addresses. This requires that the new disk drive SCSIaddress must be set to an address that is not currently in use and the drive be installedin an empty location. If there are no empty locations,then one of the other drives mustbe removed. Once the copy is complete, only one drive may remain installed. Eitherremove the target drive to return to the original configuration, or use the following stepsto 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 issuggested that when possible this service aid be run from the diagnostics that areloaded from removable media.124 User’s Guide
