Home » Seagate Manuals » Hard Drives » Seagate Cheetah NS 10K » Manual Viewer

Seagate Cheetah NS 10K Cheetah NS 10K.2 SAS Product Manual - Page 60

additional sinusoidal jitter

Get Seagate Cheetah NS 10K PDF manuals and user guides

View all Seagate Cheetah NS 10K manuals

Add to My Manuals
Save this manual to your list of manuals

Page 60 highlights

The leading and trailing edge slopes of figure 14 shall be preserved. As a result the amplitude value of Z1 is less than that given in table 26 and Z1TOL and Z1OP shall be defined from those slopes by the following equa- tion: Z1TOL = Z 1OP x -X-----2---O----P 0---,----5---)---x---a---d----d---i-t--i-o----n---a---l---s---i--n---u---s---o----i-d---a----l---j-i-t--t--e---r X-----1---O----PX 2OP - X 1OP where: Z1TOL is the value for Z1 to be used for the tolerance masks; and Z1OP, X1OP, and X2OP are the values in table 26 for Z1, X1, and X2. The X1 points in the receive tolerance masks are greater than the X1 points in the receive masks, due to the addition of sinusoidal jitter. Figure 16 defines the sinusoidal jitter mask. Figure 16. Sinusoidal jitter mask 56 Cheetah NS 10K.2 SAS Product Manual, Rev. F

Section	Page
1.0 Seagate Technology support services	5
2.0 Scope	6
3.0 Standards, compliance and reference documents	7
3.1 Standards	7
3.1.1 Electromagnetic compatibility	7
3.2 Compliance	8
3.2.1 Electromagnetic compliance	8
3.3 Reference documents	9
4.0 General description	10
4.1 Standard features	11
4.2 Media description	11
4.3 Performance	11
4.4 Reliability	11
4.5 Formatted capacities	12
4.6 Programmable drive capacity	12
4.7 Factory-installed options	12
5.0 Performance characteristics	13
5.1 Internal drive characteristics	13
5.2 Seek performance	13
5.2.1 Access time	13
5.2.2 Format command execution time (minutes)	14
5.2.3 General performance characteristics	14
5.3 Start/stop time	14
5.4 Prefetch/multi-segmented cache control	15
5.5 Cache operation	15
5.5.1 Caching write data	15
5.5.2 Prefetch operation	16
6.0 Reliability specifications	17
6.1 Error rates	17
6.1.1 Recoverable Errors	17
6.1.2 Unrecoverable Errors	17
6.1.3 Seek errors	17
6.1.4 Interface errors	18
6.2 Reliability and service	18
6.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	18
6.2.2 Preventive maintenance	18
6.2.3 Hot plugging the drive	18
6.2.4 S.M.A.R.T.	19
6.2.5 Reporting control	19
6.2.6 Thermal monitor	20
6.2.7 Drive Self Test (DST)	20
6.2.8 Product warranty	22
7.0 Physical/electrical specifications	24
7.1 AC power requirements	24
7.2 DC power requirements	24
7.2.1 Conducted noise immunity	26
7.2.2 Power sequencing	26
7.2.3 Current profiles	26
7.3 Power dissipation	28
7.4 Environmental limits	29
7.4.1 Temperature	29
7.4.2 Relative humidity	30
7.4.3 Effective altitude (sea level)	30
7.4.4 Shock and vibration	30
7.4.5 Acoustics	32
7.4.6 Air cleanliness	32
7.4.7 Corrosive environment	32
7.4.8 European Union Restriction of Hazardous Substances (RoHS) Directive	33
7.4.9 China Restriction of Hazardous Substances (RoHS) Directive	33
7.4.10 Electromagnetic susceptibility	33
7.5 Mechanical specifications	34
8.0 Defect and error management	35
8.1 Drive internal defects/errors	35
8.2 Drive error recovery procedures	35
8.3 SAS system errors	37
8.4 Background Media Scan	37
8.5 Media Pre-Scan	37
8.6 Deferred Auto-Reallocation	37
8.7 Idle Read After Write	38
9.0 Installation	39
9.1 Drive orientation	39
9.2 Cooling	40
9.3 Drive mounting	41
9.4 Grounding	41
10.0 Interface requirements	42
10.1 SAS features	42
10.1.1 task management functions	42
10.1.2 task management responses	42
10.2 Dual port support	43
10.3 SCSI commands supported	44
10.3.1 Inquiry data	48
10.3.2 Mode Sense data	48
10.4 Miscellaneous operating features and conditions	52
10.4.1 SAS physical interface	53
10.4.2 Physical characteristics	55
10.4.3 Connector requirements	55
10.4.4 Electrical description	56
10.4.5 Pin descriptions	56
10.4.6 SAS transmitters and receivers	57
10.4.7 Power	57
10.5 Signal characteristics	57
10.5.1 Ready LED Out	57
10.5.2 Differential signals	58
10.6 SAS-2 Specification compliance	67
10.7 Additional information	67
Numerics	69
A	69
B	69
C	69
D	69
E	69
F	70
G	70
H	70
I	70
J	70
L	70
M	70
N	71
O	71
P	71
Q	71
R	71
S	71
T	72
U	72
V	72
W	72