Seagate ST9300653SS ユーザーズマニュアル

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Savvio 15K.3 SAS Product Manual, Rev. A
9
4.3
Performance
• Firmware-controlled multisegmented cache designed to dynamically adjust segments for enhanced system 
performance
• 600 MB/s maximum instantaneous data transfers
• 15K RPM spindle. Average latency =  2.0 ms
• Background processing of queue
• Supports start and stop commands (spindle stops spinning)
• Adaptive seek velocity; improved seek performance
Note.
There is no significant performance difference between Self-Encrypting Drive and standard (non-
Self-Encrypting Drive) models.
4.4
Reliability
• Annualized Failure Rate (AFR) of 0.44%
• Mean Time Between Failures (MTBF) of 2,000,000 hours
• Balanced low mass rotary voice coil actuator
• Incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• 5-year warranty
4.5
Formatted capacities
Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time and 
must be a multiple of 4 bytes. 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:
Seagate designs capacity points at certain block 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: 
 Capacity (Blocks)
Sector Size
ST9300653SS
ST9300553SS
ST9300453SS
ST9146853SS
ST9146753SS
ST9146653SS
Decimal
Hex Decimal
Hex
512
585,937,500
22ECB25C
286,749,488
11177330
520
573,653,848
22314358
280,790,185
10BC84A9
524
566,007,800
21BC97F8
275,154,368
106685C0
528
557,874,778
21407E5A
272,662,935
10408197