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Seagate ST800FM0053 Seagate 1200 SSD Product Manual - Page 77

Interface Manual

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11.5.2 Differential signals The drive SAS differential signals comply with the intra-enclosure (internal connector) requirements of the SAS standard. Table 27 defines the general interface characteristics Table 27 General interface characteristics CHARACTERISTIC Bit rate (nominal) Unit interval (UI)(nominal) Impedance (nominal, differential ) Transmitter transients, maximum Receiver transients, maximum UNITS Mbaud ps ohm V V 1.5GB/S 1,500 666.6 100 ± 1.2 ± 1.2 3.0GB/S 3,000 333.3 100 ± 1.2 ± 1.2 6.0GB/S 6,000 166.6 100 ± 1.2 ± 1.2 12.0GB/S 12,000 83.3 100 ± 1.2 ± 1.2 11.6 SAS-3 SPECIFICATION COMPLIANCE Seagate SAS-3 drives are entirely compatible with the SAS-3 Specification (T10/2212-D). The most important characteristic of the SAS-3 drive at 6Gb/s is that the receiver is capable of adapting the equalizer to optimize the receive margins. The SAS-3 drive has two types of equalizers: 1. A Decision Feedback Equalizer (DFE) which utilizes the standard SAS-3 training pattern transmitted during the SNW-3 training gap. The DFE circuit can derive an optimal equalization characteristic to compensate for many of the receive losses in the system. 2. A Feed Forward Equalizer (FFE) optimized to provide balanced receive margins over a range of channels bounded by the best and worst case channels as defined by the relevant ANSI standard. 11.7 ADDITIONAL INFORMATION Please contact the Seagate representative for SAS electrical details, if required. For more information about the Phy, Link, Transport, and Applications layers of the SAS interface, refer to the Seagate SAS Interface Manual, part number 100293071. For more information about the SCSI commands used by Seagate SAS drives, refer to the Seagate SCSI Commands Reference Manual, part number 100293068. SEAGATE 1200 SSD PRODUCT MANUAL, REV. A 71

Section	Page
Seagate® 1200 SSD	1
Seagate Technology Support Services	7
1.0 Scope	8
2.0 Applicable standards and reference documentation	9
2.1 Standards	9
2.1.1 Electromagnetic compatibility	9
2.1.2 Electromagnetic compliance	9
2.1.3 European Union Restriction of Hazardous Substances (RoHS)	10
2.1.4 China Restriction of Hazardous Substances (RoHS) Directive	10
2.2 Reference documents	11
3.0 General description	12
3.1 Standard features	12
3.2 Media description	13
3.3 Performance	13
3.4 Reliability	13
3.5 Formatted capacities	13
3.6 Programmable drive capacity	14
3.7 Factory-installed options	14
3.8 Thin Provisioning	14
3.8.1 Logical Block Provisioning	14
3.8.2 Thin Provisioning capabilities	14
3.8.3 UNMAP	14
3.8.4 FORMAT UNIT command	15
3.8.5 Protection Information (PI) and Security (SED)	15
4.0 Performance characteristics	16
4.1 Internal drive characteristics	16
4.2 Performance characteristics	16
4.2.1 Response time	16
4.2.2 FORMAT UNIT command execution time for 512-byte LBA’s (minutes)	17
4.2.3 Performance	17
4.3 Start/stop time	19
4.4 Cache control	20
4.4.1 Caching write data	20
4.4.2 Prefetch operation	20
5.0 Reliability specifications	21
5.1 Error rates	22
5.1.1 Unrecoverable Errors	22
5.1.2 Interface errors	22
5.2 Endurance Management	22
5.2.1 Wear Leveling	22
5.2.2 Garbage Collection	22
5.2.3 Write Amplification	22
5.2.4 UNMAP	22
5.2.5 Data Retention	23
5.2.6 Lifetime Endurance Management (Available on select models)	23
5.2.7 SSD Percentage Used Endurance Indicator	23
5.3 Reliability and service	23
5.3.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)	23
5.3.2 Preventive maintenance	23
5.3.3 Hot plugging the drive	23
5.3.4 S.M.A.R.T.	24
5.3.5 Thermal monitor	25
5.3.6 Drive Self Test (DST)	25
5.3.7 Product warranty	27
6.0 Physical/electrical specifications	28
6.1 Power specifications	28
6.1.1 Power consumption	28
6.2 AC power requirements	28
6.3 DC power requirements	29
6.3.1 Conducted noise immunity	37
6.3.2 Power sequencing	37
6.3.3 Current profiles	37
6.4 Power dissipation	40
6.5 Environmental limits	44
6.5.1 Temperature	44
6.5.2 Relative humidity	45
6.5.3 Effective altitude (sea level)	45
6.5.4 Shock and vibration	45
6.5.5 Air cleanliness	47
6.5.6 Corrosive environment	47
6.5.7 Electromagnetic susceptibility	47
6.6 Mechanical specifications	48
7.0 About FIPS	50
8.0 About self-encrypting drives	51
8.1 Data encryption	51
8.2 Controlled access	51
8.2.1 Admin SP	51
8.2.2 Locking SP	51
8.2.3 Default password	51
8.3 Random number generator (RNG)	51
8.4 Drive locking	52
8.5 Data bands	52
8.6 Cryptographic erase	52
8.7 Authenticated firmware download	52
8.8 Power requirements	53
8.9 Supported commands	53
8.10 Sanitize - Cryptographic Erase	53
8.11 RevertSP	53
8.12 Sanitize Feature Set on SED Drives	53
9.0 Defect and error management	54
9.1 Drive internal defects/errors	54
9.2 Drive error recovery procedures	54
9.3 SAS system errors	54
9.4 Auto-Reallocation	55
9.5 Protection Information (PI)	55
9.5.1 Levels of PI	55
9.5.2 Setting and determining the current Type Level	55
9.5.3 Identifying a Protection Information drive	55
10.0 Installation	56
10.1 Drive orientation	56
10.2 Cooling	56
10.3 Drive mounting	57
10.4 Grounding	57
11.0 Interface requirements	58
11.1 SAS features	58
11.1.1 Task management functions	58
11.1.2 Task management responses	58
11.2 Dual port support	58
11.3 SCSI commands supported	59
11.3.1 INQUIRY data	63
11.3.2 MODE SENSE data	64
11.4 Miscellaneous operating features and conditions	69
11.4.1 SAS physical interface	69
11.4.2 Physical characteristics	74
11.4.3 Connector requirements	74
11.4.4 Electrical description	74
11.4.5 Pin descriptions	74
11.4.6 SAS transmitters and receivers	75
11.4.7 Power	76
11.5 Signal characteristics	76
11.5.1 Ready LED Out	76
11.5.2 Differential signals	77
11.6 SAS-3 Specification compliance	77
11.7 Additional information	77
Numerics	78
A	78
B	78
C	78
D	78
E	78
F	79
G	79
H	79
I	79
J	79
L	79
M	79
N	80
O	80
P	80
Q	80
R	80
S	80
T	81
U	81
V	81
W	81