Seagate ST400FM0073 ユーザーズマニュアル
Seagate 1200 SSD Product Manual, Rev. C
12
3.2
Media description
The media used on the drive consists of Multi Layer Cell (MLC) NAND Flash for improved reliability and performance.
3.3
Performance
• Firmware controlled multi-segmentable cache buffer
• Up to 1200MB/s maximum instantaneous data transfers on 12Gb capable configurations.
• Background processing of queue
• Non-Volatile Write Cache
• Up to 1200MB/s maximum instantaneous data transfers on 12Gb capable configurations.
• Background processing of queue
• Non-Volatile Write Cache
Note.
There is no significant performance difference between Self-Encrypting Drive and standard (non-Self-Encrypting
Drive) models.
Drive) models.
3.4
Warranty
• "Managed Life" or "Limited Warranty with Media Usage" warranty options
[1] Warranty terms will vary based on type of warranty chosen: “Managed Life” or “Limited Warranty with Media Usage”.
Consult the Seagate sales representative for warranty terms and conditions.
3.5
Formatted capacities
Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time. Supported block
sizes are 512, 520, 524, 528, 4096, 4160, 4192, and 4224. Users having the necessary equipment may modify the data
block size before issuing a format command and obtain different formatted capacities than those listed.
sizes are 512, 520, 524, 528, 4096, 4160, 4192, and 4224. 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:
recommends product planning in one of two modes:
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 shown below. The Capacity stated is identical when the drive is formatted with or without PI enabled.
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 shown below. The Capacity stated is identical when the drive is formatted with or without PI enabled.
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.
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.
Table 1 Formatted Capacity Block Count
Capacity (Blocks)
Block
Size
Size
800GB
400GB
200GB
100GB
Decimal
Hex
Decimal
Hex
Decimal
Hex
Decimal
Hex
512
1,562,824,368
5D26CEB0h
781,422,768
2E9390B0h
390,721,968
1749F1B0h
195,371,568
BA52230h
520
1,529,743,600
5B2E08F0h
764,871,800
2D970478h
382,435,904
16CB8240h
191,217,952
B65C120h
524
1,509,354,136
59F6EA98h
754,677,072
2CFB7550h
377,338,536
167DBAA8h
188,669,272
B3EDD58h
528
1,487,666,080
58ABFBA0h
743,833,040
2C55FDD0h
371,916,520
162AFEE8h
185,958,264
B157F78h
4096
195,353,046
BA4D9D6h
97,677,846
5D27216h
48,840,246
2E93E36h
24,421,446
174A446h
4160
191,538,464
B6AA520h
95,769,232
5B55290h
47,884,616
2DAA948h
23,942,312
16D54A8h
4192
189,122,144
B45C660h
94,561,072
5A2E330h
47,280,536
2D17198h
23,640,272
168B8D0h
4224
187,689,400
B2FE9B8h
93,844,704
597F4E0h
46,922,352
2CBFA70h
23,461,176
165FD38h