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Seagate ST9900805SS Savvio 10K.4 SAS Product Manual - Page 54

Installation

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9.0 Installation Savvio disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive. SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays designed to accomodate the drive. In such systems, the host system typically provides a carrier or tray into which you need to mount the drive. Mount the drive to the carrier or tray provided by the host system using four M3 x 0.5 metric screws. When tightening the screws, use a maximum torque of 4.5 in-lb +/- 0.45 in-lb. Do not over-tighten or force the screws. You can mount the drive in any orientation. Note. SAS drives are designed to be attached to the host system without I/O or power cables. If you intend to use the drive in a non-backplane host system, connecting the drive using high-quality cables is acceptable as long as the I/O cable length does not exceed 10 meters (32.8 feet). Slide the carrier or tray into the appropriate bay in your host system using the instructions provided by the host system. This connects the drive directly to your system's SAS connector. The SAS connector is normally located on a SAS backpanel. See Section 10.4.1 for additional information about these connectors. Power is supplied through the SAS connector. The drive is shipped from the factory low-level formatted in 512-byte logical blocks. You need to reformat the drive only if you want to select a different logical block size. Figure 25. Physical interface 9.1 Drive orientation The drive may be mounted in any orientation. All drive performance characterizations, however, have been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations. 46 Savvio 10K.4 SAS Product Manual, Rev. C

Section	Page
1.0 Scope	9
2.0 Applicable standards and reference documentation	10
2.1 Standards	10
2.1.1 Electromagnetic compatibility	10
2.1.1.1 Electromagnetic susceptibility	10
2.1.2 Electromagnetic compliance	11
2.1.3 European Union Restriction of Hazardous Substances (RoHS)	12
2.2 Reference documents	12
3.0 General description	13
3.1 Standard features	14
3.2 Media description	14
3.3 Performance	15
3.4 Reliability	15
3.5 Formatted capacities	15
3.6 Programmable drive capacity	15
3.7 Factory-installed options	16
4.0 Performance characteristics	17
4.1 Internal drive characteristics	17
4.2 Seek performance characteristics	17
4.2.1 Access time	17
4.2.2 Format command execution time for 512-byte sectors (minutes)	18
4.2.3 General performance characteristics	18
4.3 Start/stop time	18
4.4 Prefetch/multi-segmented cache control	19
4.5 Cache operation	19
4.5.1 Caching write data	19
4.5.2 Prefetch operation	20
5.0 Reliability specifications	21
5.1 Error rates	21
5.1.1 Recoverable Errors	21
5.1.2 Unrecoverable Errors	21
5.1.3 Seek errors	22
5.1.4 Interface errors	22
5.2 Reliability and service	22
5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)	22
5.2.2 Preventive maintenance	22
5.2.3 Hot plugging the drive	22
5.2.4 S.M.A.R.T.	23
5.2.5 Thermal monitor	24
5.2.6 Drive Self Test (DST)	25
5.2.6.1 DST failure definition	25
5.2.6.2 Implementation	25
5.2.7 Product warranty	27
6.0 Physical/electrical specifications	28
6.1 PowerChoiceTM power management	28
6.1.1 PowerChoice reporting methods	29
6.2 AC power requirements	29
6.3 DC power requirements	29
6.3.1 Conducted noise immunity	33
6.3.2 Power sequencing	33
6.3.3 Current profiles	34
6.4 Power dissipation	36
6.5 Environmental limits	39
6.5.1 Temperature	39
6.5.2 Relative humidity	40
6.5.3 Effective altitude (sea level)	40
6.5.4 Shock and vibration	40
6.5.4.1 Shock	41
6.5.4.2 Vibration	43
6.5.5 Air cleanliness	43
6.5.6 Corrosive environment	43
6.5.7 Acoustics	44
6.5.8 Electromagnetic susceptibility	44
6.6 Mechanical specifications	45
7.0 About self-encrypting drives	46
7.1 Data encryption	46
7.2 Controlled access	46
7.2.1 Admin SP	46
7.2.2 Locking SP	47
7.2.3 Default password	47
7.3 Random number generator (RNG)	47
7.4 Drive locking	47
7.5 Data bands	47
7.6 Cryptographic erase	48
7.7 Authenticated firmware download	48
7.8 Power requirements	48
7.9 Supported commands	48
8.0 Defect and error management	49
8.1 Drive internal defects/errors	49
8.2 Drive error recovery procedures	49
8.3 SAS system errors	50
8.4 Background Media Scan	51
8.5 Media Pre-Scan	51
8.6 Deferred Auto-Reallocation	51
8.7 Idle Read After Write	52
8.8 Protection Information (PI)	52
8.8.1 Levels of PI	52
8.8.2 Setting and determining the current Type Level	52
8.8.3 Identifying a Protection Information drive	53
9.0 Installation	54
9.1 Drive orientation	54
9.2 Cooling	55
9.3 Drive mounting	56
9.4 Grounding	56
10.0 Interface requirements	57
10.1 SAS features	57
10.1.1 task management functions	57
10.1.2 task management responses	57
10.2 Dual port support	58
10.3 SCSI commands supported	59
10.3.1 Inquiry data	63
10.3.2 Mode Sense data	63
10.4 Miscellaneous operating features and conditions	67
10.4.1 SAS physical interface	68
10.4.2 Physical characteristics	71
10.4.3 Connector requirements	71
10.4.4 Electrical description	71
10.4.5 Pin descriptions	71
10.4.6 SAS transmitters and receivers	72
10.4.7 Power	72
10.5 Signal characteristics	72
10.5.1 Ready LED Out	72
10.5.2 Differential signals	73
10.6 SAS-2 Specification compliance	73
10.7 Additional information	73
11.0 Seagate Technology support services	74
Numerics	77
A	77
B	77
C	77
D	77
E	78
F	78
G	78
H	78
I	78
J	78
K	78
L	78
M	79
N	79
O	79
P	79
Q	79
R	80
S	80
T	80
U	81
V	81
W	81

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Savvio 10K.4 SAS Product Manual, Rev. C

9.0

Installation

Savvio disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the

drive.

SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays

designed to accomodate the drive. In such systems, the host system typically provides a carrier or tray into

which you need to mount the drive. Mount the drive to the carrier or tray provided by the host system using four

M3 x 0.5 metric screws. When tightening the screws, use a maximum torque of 4.5 in-lb +/- 0.45 in-lb. Do not

over-tighten or force the screws. You can mount the drive in any orientation.

Note.

SAS drives are designed to be attached to the host system without I/O or power cables. If you

intend to use the drive in a non-backplane host system, connecting the drive using high-quality

cables is acceptable as long as the I/O cable length does not exceed 10 meters (32.8 feet).

Slide the carrier or tray into the appropriate bay in your host system using the instructions provided by the host

system. This connects the drive directly to your system’s SAS connector. The SAS connector is normally

located on a SAS backpanel. See Section 10.4.1 for additional information about these connectors.

Power is supplied through the SAS connector.

The drive is shipped from the factory low-level formatted in 512-byte logical blocks. You need to reformat the

drive only if you want to select a different logical block size.

Figure 25.

Physical interface

9.1

Drive orientation

The drive may be mounted in any orientation. All drive performance characterizations, however, have been

done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two pre-

ferred mounting orientations.