IBM Eserver pSeries 670, Руководство пользователя

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Flash SK-NET FDDI Firmware
This task allows the Flash firmware on the SysKonnect SK-NET FDDI adapter to be
updated.
Format Media
This task allows the selection of diskettes, hardfiles, or optical media to be formatted.
Each selection is described below.
Hardfile Attached to SCSI Adapter (non-RAID)
v
Hardfile Format
Writes all of the disk. The pattern written on the disk is device-dependent, for
example, some drives may write all 0s, while some may write hexadecimal number
5F. Bad blocks are not reassigned.
v
Hardfile Format and Certify
Performs the same function as Hardfile Format. After the format is completed, Certify
is run. This certify reassigns all bad blocks encountered.
v
Hardfile Erase Disk
This option can be used to overwrite (remove) all data currently stored in
user-accessible blocks of the disk. The Erase Disk option writes one or more
patterns to the disk. An additional option allows data in a selectable block to be read
and displayed on the system console.
To use the Erase Disk option, specify the number (0-3) of patterns to be written.
Select the patterns to be written. The patterns are written serially; that is, the first
pattern is written to all blocks. Then the next pattern is written to all blocks,
overlaying the previous pattern. To write a random pattern, select the Write random
pattern? option.
Note: The Erase Disk service aid has not been certified as meeting the Department
of Defense or any other organizations security guidelines.
To overwrite the data on the drive do the following:
1. Use the Erase Disk selection to overwrite the data on the drive.
2. Do a format without certify.
3. Run a second pass of the Erase Disk selection.
For a newly installed drive, you can ensure that all blocks on the drive are
overwritten with your pattern if you use the following procedure:
1. Format the drive.
2. Check the defect MAP by running the Erase Disk selection.
102 Eserver
pSeries 670 User’s Guide