Seagate ST3450857SS ユーザーズマニュアル

Cheetah 15K.7 SAS Product Manual, Rev. A

7

There is no significant performance difference between Self-Encrypting Drive and standard (non-
Self-Encrypting Drive models.

• 1,600,000 hour MTBF (Annualized Failure Rate (AFR) of 0.55%)
• Incorporates industry-standard Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• 5-year warranty

Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time and 
must be one of the supported sizes listed in the table below. 

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 forward compatibility from generation to generation. The current guaranteed 
operating points for this product are: 

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.

You 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 damage. 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, may be included with each stan-

dard OEM drive shipped.

 

 

 

512

1,172,123,568

45DD2FB0

879,097,968

3465F870

585,937,500

22ECB25C

520

1,147,307,694

446286AE

860,480,771

3349E503

573,653,848

22314358

524

1,132,015,600

43792FF0

849,011,700

329AE3F4

566,007,800

21BC97F8

528

1,115,749,560

4280FCB8

836,812,167

31E0BD87

557,874,778

21407E5A