Maintenance and Service Guide |
NOTE: An Unconditional Format should be performed only if you are sure that tracks marked bad on the fixed disk drive are not actually bad. Good tracks may be marked bad as a result of using a defective fixed disk drive controller or controller cable.
You must perform a Surface Analysis after an Unconditional Format to identify any additional bad tracks that may exist on the fixed disk drive.
Run the Fixed Disk Drive test to verify that the fixed disk drive and the fixed disk drive control- ler (if applicable) are functioning properly.
Surface Analysis
The Surface Analysis selection performs multiple write/read/compares on each track of the disk in search of more unusable tracks. It formats tracks to be unusable when errors are found.
Change Interleave
The Change Interleave selection permits you to change the interleave factor of the fixed disk drive. You must run either the Conditional or Unconditional Format to enable the new inter- leave factor.
CAUTION
Changing the interleave factor can drastically reduce the performance of the system. The interleave factor is preset to achieve maxi- mum efficiency from the computer.
Do not choose this selection unless you are required to do so, either by a software pro- gram or by an operating system other than
Display Current Interleave
The Display Current Interleave selection tests the fixed disk drive and reports the current inter- leave setting.
