2.4PERFORMANCE, RECORDING AND INTERFACE TECHNOLOGY

2.4.1Interface technology

 

480GB models

 

240GB models

120GB models

 

 

 

 

 

Interface

Serial ATA (SATA-II)

 

 

 

 

 

Interface Speeds Supported

6Gb/s, 3Gb/s, 1.5Gb/s

 

 

 

 

 

Maximum Burst Transfer Rate

600MB/s

 

 

 

 

 

 

Hot Plug Support

Yes

 

 

 

 

 

 

Native Command Queuing Support

Yes

 

 

 

 

 

 

Trim Support

Yes

 

 

 

 

 

 

 

2.4.2 Recording technology

 

 

 

Flash Memory Type

NAND MLC

 

 

Emulated LBA Size (Bytes)

512

 

 

Default transfer alignment offset

0

 

 

Typical Data Retention with Power removed (at 30°C)

12 months

 

 

2.4.3 Performance

 

Notes

480GB

240GB

120GB

 

 

 

 

 

Sustained sequential 128KB read/write data transfer rate (MB/s)

[1]

530/440

 

 

 

 

 

Peak 4KB random read/write command rate (KIOPs)

[2]

80/70

 

 

 

 

 

 

[1]Testing performed at Queue Depth = 32, Sequentially Preconditioned drive, using IOMeter 2006.7.27.

[2]Testing performed at Queue Depth = 32, Randomly Preconditioned drive, using IOMeter 2006.7.27.

Note. IOMeter is available at http://www.iometer.org/ or http://sourceforge.net/projects/iometer/.

IOMeter is licensed under the Intel Open Source License and the GNU General Public License. Intel does not endorse any IOMeter results.

Peak performance is defined as the typical best case performance that the product will be able to achieve when the product is preconditioned as mentioned and host commands are aligned on 4KB boundaries.

Sustained performance is defined as the typical worst case pe rformance that the product will be able to achieve when the product is preconditioned as mentioned and host commands are aligned on 4KB boundaries.

Due to the nature of Flash memory technologies there are many factors that can result in values different than those stated in this specification. Some discrepancies can be caused by bandwidth limitations in the host adapter, operating system, or driver limitations. It is not the intent of this manual to cover all possible causes of performance discrepancies.

When evaluating performance of SSD devices, it is recommended to measure performance of the device in a method that resembles the targeted application using real world data and workloads. Test time should also be adequately large to ensure that sustainable metrics and measures are obtained.

SEAGATE 600 SSD PRODUCT MANUAL, REV. B

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Seagate ST240HM001, ST120HM001 PERFORMANCE, Recording and Interface Technology, Interface technology, Recording technology