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Cheetah 10K.6 FC Product Manual, Rev. B 7
• Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• Dithering
3.5 Unformatted and formatted capacities
Formatted capacity depends on the spare reallocation sectors scheme selected, the number of data tracks per
sparing zone, and the number of alternate sectors (LBAs) per sparing zone. The following table shows the
standard OEM model capacity:
Standard OEM models are formatted to 512 bytes per block. You can order other capacities by requesting a dif-
ferent sparing scheme and logical block size.
The sector size is selectable at format time. Users having the necessary equipment may modify the data block
size before issuing a format command and obtain different formatted capacities than those listed. Cheetah
10K.6 FC drives use a zone sparing scheme. The drive is divided into frequency zones with a variable number
of spares in each zone.
Note. For 2 gigabit operation, sector sizes must be divisible by 8.
3.6 Programmable drive capacity
Using the Mode Select command, the drive can change its capacity to something less than maximum. See the
Mode Select (6) parameter list table in the
Fibre Channel Interface Manual
, part number 7767496. A value of
zero in the Number of Blocks field indicates that the drive will not change the capacity it is currently formatted
to have. A number other than zero and less than the maximum number of LBAs in the Number of Blocks field
changes the total drive capacity to the value in the Number of Blocks field. A value greater than the maximum
number of LBAs is rounded down to the maximum capacity.
3.7 Factory-installed accessories
OEM standard drives are shipped with the
Cheetah 10K.6 FC Installation Guide
(part number 100195492).
3.8 Factory-installed options
You may order the following items which are incorporated at the manufacturing facility during production or
packaged before shipping. Some of the options available are (not an exhaustive list of possible options):
• Other capacities can be ordered depending on sparing scheme and sector size requested.
• Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection
against transit damage. Units shipped individually require additional protection as provided by the single unit
shipping pack. Users planning single unit distribution should specify this option.
• The
Cheetah 10K.6 FC Installation Guide,
part number 100195492, is usually included with each standard
OEM drive shipped, but extra copies may be ordered.
• The
Safety and Regulatory Agency Specifications
, part number 75789512, is usually included with each
standard OEM drive shipped, but extra copies may be ordered.
3.9 User-installed accessories
The following accessories are available. All kits may be installed in the field.
• Evaluation kit, part number 73473641.
This kit provides an adapter card (“T-card”) to allow cable connections for two FC ports and DC power.
• Single-unit shipping pack.
Formatted Unformatted
ST3146807FC 11177330h (
146.8) Gbytes (190.0) Gbytes
ST373307FC 88BB998h (
73.3) Gbytes (95.0) Gbytes
ST336607FC 445DCCCh (36.7) Gbytes (47.5) Gbytes