Performance Characteristics; Internal Drive Characteristics; Response Time - Seagate ST400FM0323 Product Manual

4.0

Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of:
Seagate 1200.2 SAS SSD drives.
4.1

Internal drive characteristics

Flash Memory Type
Emulated LBA Size
Native Programmable
Page Size
Map Unit Size
Default Transfer
Alignment Offset
4.2 Performance characteristics
4.2.1

Response time

Response time measurements are taken with nominal power at 25°C ambient temperature. The typical values in the table below are
defined as follows:
• Page-to-page response time is an average of all possible page-to-page accesses for a sequentially preconditioned drive.
• Average response time is a true statistical random average of at least 5000 measurements of accesses between programma-
ble pages on a randomly preconditioned drive.
Table 4 Typical Response Time (μsec)
Average
Page to Page
Average Latency
1. Execution time measured from receipt of the Command to the Response.
2. Assumes no errors.
3. Typical response times are measured under nominal conditions of temperature and voltage as measured on a representative sample of
drives.
These drives are designed to provide the highest possible performance under typical conditions. However, due
to the nature of Flash memory technologies there are many factors that can result in values different
than those stated in this specification.
2.
Seagate 1200.2 SAS SSD Product Manual, Rev. A
NAND eMLC
512, 520, 524, 528, 4096, 4160, 4192 or 4224
8192 User Bytes
4096
0
3
Typical
1 , 2
All capacities
Read
105
105
105
Write
25
25
25
16