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Cheetah 10K.7 SCSI Product Manual, Rev. D 9
3.3 Performance
• Supports industry standard Ultra320 SCSI interface
• Programmable multi-segmentable cache buffer (see Section 4.5)
• 10,000 RPM spindle. Average latency = (3.00) ms
• Command queuing of up to 64 commands
• Background processing of queue
• Supports start and stop commands (spindle stops spinning)
3.4 Reliability
• Annualized Failure Rate (AFR) of 0.62%
• LSI circuitry
• Balanced low mass rotary voice coil actuator
• Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.)
• 5-year warranty
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.
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:
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.
Sector Size
ST373207 ST3146707 ST3300007
Decimal Hex Decimal Hex Decimal Hex
512 143,374,744 88BB998 286,749,488 11177330 585,937,500 22ECB25C
514 141,025,384 867E068 282,050,768 10CFC0D0 574,712,644 22416B44
520 140,395,092 85E4254 280,790,184 10BC84A8 573,653,847 22314357
522 139,463,602 8500BB2 279,041,740 10A1D6CC 570,053,000 21FA5188
524 137,577,184 83342E0 275,154,368 106685C0 566,007,800 21BC97F8
528 557,874,778 21407E5A