Disk Maintenance Service Aid
Ÿ Disk to Disk Copy Service Aid
ŸDisplay/Alter Sector Service Aid
Disk | to | Disk | Copy | Service Aid |
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The | service | aid allows | you | to | recover | data from | an | old | drive | when | replacing | it | with a | |||||||||||||||
new | drive. The |
| service aid only supports copying from a | drive |
| to | another | drive | of | |||||||||||||||||||
similar size. This service aid cannot be used | to | update | to | a | different | size | drive. | |||||||||||||||||||||
migratepv |
| command should be used when updating drives. The service aid |
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recovers | all | LVM | software | reassigned blocks. To prevent corrupted | data | from | being |
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copied | to | the | new drive, the service aid aborts if an unrecoverable read error is | |||||||||||||||||||||||||
detected. To help prevent possible problems with the new | drive, | the | service aid | |||||||||||||||||||||||||
aborts | if the |
| number | of | bad | blocks being | reassigned | reaches |
| a | threshold. |
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The | procedure |
| for using this service aid requires that both |
| the old and new disks b | |||||||||||||||||||||||
installed | in | or |
| attached | to | the system | with unique SCSI addresses. This | requires |
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that | the | new | disk | drive | SCSI | address | must | be | set | to | an | address | that | is | not | currently | ||||||||||||
in used and the drive be installed in an empty location. If | there | are | no | empty | ||||||||||||||||||||||||
locations, | then |
| one of the other drives has to be removed. Once the copy | is |
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complete, | only | one | drive | may remain installed. Either remove | the | target | drive | to |
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return | to | the |
| original | configuration, | or | perform | the | following procedure | to | complete | |||||||||||||||||
the | replacement | of | the | old | drive | with | the | new | drive. |
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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 may | occur | when | running | this | service aid from disk, it is | ||
suggested | that | this | service | aid | be run | from | the | diagnostics that are loaded from |
removable | media | when | possible. |
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