Performance; Reliability; Formatted Capacities; Programmable Drive Capacity - Seagate ST336807FC - Cheetah 36 GB Hard Drive User Manual

3.3

Performance

• Programmable multi-segmentable cache buffer
• 200 Mbytes/sec maximum instantaneous data transfers per port
• 10K RPM spindle; average latency = 3.0 msec
• Command queuing of up to 128 commands
• Background processing of queue
• Supports start and stop commands
3.4

Reliability

• Annualized Failure Rate (AFR) or 0.62%
• LSI circuitry
• Balanced low mass rotary voice coil actuator
• Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• Dithering
3.5

Formatted capacities

Standard OEM models are formatted to 512 bytes per block. 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.
For 2 gigabit operation, sector sizes must be divisible by 8.
To provide a stable target capacity environment and at the same time provide users with flexibility if they
choose, Seagate recommends product planning in one of two modes:
1. Seagate designs specify capacity points at certain sector sizes that Seagate guarantees current and future
products will meet. We recommend customers use this capacity in their project planning, as it ensures a
stable operating point with backward and forward compatibility from generation to generation. The current
guaranteed operating points for this product are:
ST373207
Sector Size Decimal
512 143,374,744
514 141,025,384
520 140,395,092
522 139,463,602
524 137,577,184
528
2. Seagate drives also may be used at the maximum available capacity at a given sector size, but the excess
capacity above the guaranteed level will vary between 10K and 15K families and from generation to gener-
ation, depending on how each sector size actually formats out for zone frequencies and splits over servo
bursts. This added capacity potential may range from 0.1 to 1.3 percent above the guaranteed capacities
listed above. Using the drives in this manner gives the absolute maximum capacity potential, but the user
must determine if the extra capacity potential is useful, or whether their assurance of backward and for-
ward compatibility takes precedence.
Cheetah 10K.7 FC Product Manual, Rev. D
ST3146707
Hex Decimal
88BB998 286,749,488
867E068 282,050,768
85E4254 280,790,184
8500BB2 279,041,740
83342E0 275,154,368
ST3300007
Hex Decimal
11177330 585,937,500
10CFC0D0 574,712,644
10BC84A8 573,653,847
10A1D6CC 570,053,000
106685C0 566,007,800
557,874,778
Hex
22ECB25C
22416B44
22314357
21FA5188
21BC97F8
21407E5A
9