User Manual

Constellation ES.3 SAS Product Manual, Rev. F 13
3.4 Reliability
•5-year warranty
• Annualized Failure Rate (AFR) of 0.44%
• Balanced low mass rotary voice coil actuator
• Incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• Mean time between failures (MTBF) of 2,000,000 hours
3.5 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:
1. Seagate designs specify 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 for
-
ward compatibility from generation to generation. The current guaranteed operating points for this product are
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 SAS Interface Manual, part number 100293071. 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 options
Users 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 dam-
age. Units shipped individually require additional protection as provided by the single unit shipping pack. Users planning single
unit distribution should specify this option.
•The Safety and Regulatory Agency Specifications, part number 75789512, is usually included with each standard OEM drive shipped,
but extra copies may be ordered.
Sector
Size
4TB models 3TB models 2TB models 1TB models
Decimal Hex Decimal Hex Decimal Hex Decimal Hex
512
7,814,037,168 1D1C0BEB0 5,860,533,168 15D50A3B0 3,907,029,168 E8E088B0 1,953,525,168 74706DB0
520
7,648,717,976 1C7E62C98 5,736,538,480 155ECA170 3,824,358,992 E3F31650 1,923,076,936 729FD348
528
7,438,330,376 1BB5BEA08 5,578,747,784 14C84EF88 3,719,165,192 DDADF508 1,876,331,336 6FD68B48