Seagate ST373207LC Cheetah 10K.7 SCSI Product Manual - Page 19

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: Sector Size 512 514 520 522 524 528 ST373207 Decimal 143,374,744 141,025,384 140,395,092 139,463,602 137,577,184 Hex 88BB998 867E068 85E4254 8500BB2 83342E0 ST3146707 Decimal 286,749,488 282,050,768 280,790,184 279,041,740 275,154,368 Hex 11177330 10CFC0D0 10BC84A8 10A1D6CC 106685C0 ST3300007 Decimal 585,937,500 574,712,644 573,653,847 570,053,000 566,007,800 557,874,778 Hex 22ECB25C 22416B44 22314357 21FA5188 21BC97F8 21407E5A 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 generation, 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 forward compatibility takes precedence. Cheetah 10K.7 SCSI Product Manual, Rev. D 9