User Manual

SCSI Commands Reference Manual, Rev. J 410
www.seagate.com Parameters for direct access devices
5.3.16 Format Parameters page (03h)
This mode page has been declared obsolete by the T10 committee. However, it is included because it may be implemented on
some products.
The Format Parameters page implementation is defined in Table 386. This table summarizes the function and defines the default
or changeability status for each bit. The actual implementation of reserving spare areas for defect management takes place
during the FORMAT UNIT command.
PS (Page Savable) bit
The only time this page of parameters may be sent is immediately before sending a FORMAT UNIT command to the drive. The Current parame-
ters for this page are updated immediately but any changes between these Current parameters and the existing media format are not in effect
until after the FORMAT UNIT command is completed. A PS bit of 1 indicates this page is savable. The PS bit is not used with the MODE SELECT
command.
The PAGE CODE (PS) field shall be set to 03h.
The PAGE LENGTH field shall be set to 16h.
TRACKS PER ZONE field
The TRACKS PER ZONE field indicates the number of tracks the drive allocates to each defect management zone. A zone can be one or more
tracks or one or more cylinders. See individual drive’s Product Manual, Volume 1, for number of tracks allocated to each defect management
zone for that drive model.
Table 386 Format Parameters page (03h)
Bit
Byte
7 6 5 4 3 2 1 0
0
PS SPF (0b) PAGE CODE (03h)
1
PAGE LENGTH (16h)
2,3
TRACKS PER ZONE
4,5
ALTERNATE SECTORS PER ZONE
6,7
ALTERNATE TRACKS PER ZONE
8,9
ALTERNATE TRACKS PER VOLUME
10,11
SECTORS PER TRACK
12,13
DATA BYTES PER PHYSICAL SECTOR
14,15
INTERLEAVE
16,17
TRACK SKEW FACTOR
18,19
CYLINDER SKEW FACTOR
20
SSEC HSEC RMB SURF DRIVE TYPE
21,22,23
Reserved