SCSI Description
5–106 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
MODE SENSE (6) Command (1Ah) (continued)
Table 5–48 Format Device Page — Field Descriptions
Field Value Description
PS 1Parameters Savable. This bit is only used with the
MODE SENSE command. This bit is reserved with
the MODE SELECT command. A PS bit value of 1
indicates that the disk drive is capable of saving
the page in a non-volatile vendor specific
location.
Tracks/Zone The number of physical tracks per cylinder:
3 for 9.2 GB model, 5 for 18.4 GB, 10 for
36.7 GB, 20 for 73.4 GB
Alternate Sectors/Zone The number of spare locations within a notch:
37 for 9.2 GB model, 63 for 18.4 GB, XX for
36.7 GB, XX for 73.4 GB
Alternate Tracks/Zone 0The drive does not have any alternate tracks.
Alternate Tracks/Logical Unit The number of tracks reserved for defect
handling:
46 for 9.2 GB model, 78 for 18.4 GB, XX for
36.7 GB, XX for 73.4 GB
Sectors/Track 413 The number of Physical Block Address sectors per
track. The value depends on the Notch value
selected in the Notch and Partitions page.
Data Bytes/Physical Sector 512 This value is the current disk sector size.
Interleave 1The drive does not support interleave.
Track Skew Factor The number of physical sectors between the last
logical sector on one track and the first logical
sector on the next track within a cylinder:
15 for 9.2 GB model, 15 for 18.4 GB, 18 for
36.7 GB, 15 for 73.4 GB
Cylinder Skew Factor The number of physical sectors between the last
logical sector on one cylinder and the first logical
sector on the next cylinder:
25 for 9.2 GB model, 20 for 18.4 GB, 20 for
36.7 GB, 25 for 73.4 GB
SSEC 0The drive does not use soft sector formatting.
HSEC 1The drive supports hard sector formatting only.
RMB 0The drive does not support removable logical
media.
SURF 0A Surface bit value of 0 indicates that the drive
allocates progressive addresses to all logical
blocks within a cylinder prior to allocating
addresses on the next cylinder.