IBM 8685 User Guide - Page 36

Format Disk, Use the Low-Level Format program

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If this choice appears on the SCSISelect menu, select this choice to perform a low-level format on a hard disk drive. Depending on the hard disk drive capacity, the Low-Level Format program could take up to 2 hours. Use the Low-Level Format program: - When you are installing software that requires a low-level format - When you get recurring messages from the diagnostic tests directing you to run the Low-Level Format program on the hard disk drive - As a last resort before replacing a failing hard disk drive Note: If your server has a PCI RAID adapter installed, see the RAID adapter documentation for instructions for performing low-level formats on hard disk drives attached to the adapter. To start the Low-Level Format program: 1. If the hard disk drive is working, make a backup copy of all the files and programs on the hard disk. (See your operating-system information for instructions.) 2. Select Format Disk; then, follow the instructions on the screen. Note: A hard disk typically contains more tracks than its stated capacity (to allow for defective tracks). A message appears on the screen if the defect limit is reached. If this happens, replace the hard disk drive. 22 IBM xSeries 255 Type 8685: User's Guide

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If this choice appears on the SCSISelect menu, select this choice to perform a
low-level format on a hard disk drive. Depending on the hard disk drive capacity,
the Low-Level Format program could take up to 2 hours.
Use the Low-Level Format program:
–
When you are installing software that requires a low-level format
–
When you get recurring messages from the diagnostic tests directing you to
run the Low-Level Format program on the hard disk drive
–
As a last resort before replacing a failing hard disk drive
Note:
If your server has a PCI RAID adapter installed, see the RAID adapter
documentation for instructions for performing low-level formats on hard
disk drives attached to the adapter.
To start the Low-Level Format program:
1.
If the hard disk drive is working, make a backup copy of all the files and
programs on the hard disk. (See your operating-system information for
instructions.)
2.
Select
Format Disk
; then, follow the instructions on the screen.
Note:
A hard disk typically contains more tracks than its stated capacity (to
allow for defective tracks). A message appears on the screen if the
defect limit is reached. If this happens, replace the hard disk drive.
22
IBM xSeries 255 Type 8685: User’s Guide