Seagate Enterprise Capacity 3.5 HDD/Constellation ES Constellation ES (.1) SAS - Page 24

C

ONSTELLATION

ES.1 SAS P

RODUCT

M

ANUAL

, R

EV

. G

18

6.0

P

HYSICAL

/

ELECTRICAL SPECIFICATIONS

This section provides information relating to the physical and electrical characteristics of the drive.

6.1

P

OWER

C

HOICE

TM

POWER MANAGEMENT

Drives using the load/unload architecture provide programmable power management to tailor systems for performance and greater energy

efficiency.

The table below lists the supported PowerChoice modes. The further you go down in the table, the more power savings you get. For

example, Idle2 mode results in greater power savings than Idle1 mode. Standby mode results in the greatest power savings.

PowerChoice modes

Mode

Description

Idle_A

Reduced electronics

Idle_B

Heads unloaded. Disks spinning at full RPM

Idle_C

Heads unloaded. Disks spinning at reduced RPM

Standby_Y

Heads unloaded. Disks spinning at reduced RPM.

Recovery requires the NOTIFY (Enable Spinup) command.

Standby_Z

Heads unloaded. Motor stopped (disks not spinning)

Recovery requires the NOTIFY (Enable Spinup) command.

PowerChoice

TM

can be invoked using one of these two methods:

•

Power Condition mode page method—Enable and initialize the idle condition timers and/or the standby condition timers. The timer val-

ues are based on the values set in the Power Condition mode page.

•

START STOP UNIT command method—Use the START STOP UNIT command (OPERATION CODE 1Bh). This allows the host to

directly transition the drive to any supported PowerChoice mode.

If both the Power Condition mode page and START STOP UNIT command methods are used, the START STOP UNIT command request

takes precedence over the Power Condition mode page power control and may disable the idle condition and standby condition timers.

The REQUEST SENSE command reports the current PowerChoice state if active and also the method by which the drive entered the

PowerChoice state.

When the drive receives a command, all power condition timers are suspended if they were enabled via the Power Condition mode page.

Once all outstanding commands are processed, the power condition timers are reinitialized to the values defined in the Power Condition

mode page.

6.1.1

PowerChoice reporting methods

PowerChoice

TM

provides these reporting methods for tracking purposes:

Request Sense command reports

•

Current power condition

•

Method of entry

Note.

Processing the Request Sense command does not impact the drive’s power save state.

Mode Sense command reports (mode page 0x1A)

•

Idle conditions enabled / disabled

•

Idle condition timer values (100ms increments) (default, saved, current, changeable)

Power Condition Vital Product Data (VPD) Page (VPD page 0x8A)

•

Supported power conditions

•

Typical recovery time from power conditions (1ms increments)

Start/Stop Cycle Counter Log Page reports (log page 0x0E)

•

Specified and accumulated Start/Stops and Load/Unload cycles

Power Condition Transitions Log Page reports (log page 0x1A, subpage 0x00)

•

Accumulated transitions to Active, Idle_A, Idle_B, Idle_C, Standby_Y, Standby_Z

Section	Page
Constellation® ES.1 SAS	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	13
3.2 Media description	13
3.3 Performance	14
3.4 Reliability	14
3.5 Formatted capacities	14
3.6 Programmable drive capacity	14
3.7 Factory-installed options	14
4.0 Performance characteristics	15
4.1 Internal drive characteristics	15
4.2 Seek performance characteristics	15
4.2.1 Access time	15
4.2.2 Format command execution time for 512-byte sectors (minutes)	15
4.2.3 General performance characteristics	16
4.3 Start/stop time	16
4.4 Prefetch/multi-segmented cache control	16
4.5 Cache operation	16
4.5.1 Caching write data	17
4.5.2 Prefetch operation	17
5.0 Reliability specifications	18
5.1 Error rates	18
5.1.1 Recoverable Errors	18
5.1.2 Unrecoverable Errors	18
5.1.3 Seek errors	18
5.1.4 Interface errors	18
5.2 Reliability and service	19
5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)	19
5.2.2 Preventive maintenance	19
5.2.3 Hot plugging the drive	19
5.2.4 S.M.A.R.T.	20
5.2.5 Thermal monitor	21
5.2.6 Drive Self Test (DST)	21
5.2.7 Product warranty	23
6.0 Physical/electrical specifications	24
6.1 PowerChoiceTM power management	24
6.1.1 PowerChoice reporting methods	24
6.2 AC power requirements	25
6.3 DC power requirements	25
6.3.1 Conducted noise immunity	28
6.3.2 Power sequencing	28
6.3.3 Current profiles	28
6.4 Power dissipation	31
6.5 Environmental limits	37
6.5.1 Temperature	37
6.5.2 Relative humidity	37
6.5.3 Effective altitude (sea level)	37
6.5.4 Shock and vibration	37
6.5.5 Acoustics	39
6.5.6 Air cleanliness	39
6.5.7 Corrosive environment	39
6.5.8 Electromagnetic susceptibility	39
6.6 Mechanical specifications	40
7.0 About FIPS	41
8.0 About self-encrypting drives	42
8.1 Data encryption	42
8.2 Controlled access	42
8.2.1 Admin SP	42
8.2.2 Locking SP	42
8.2.3 Default password	42
8.3 Random number generator (RNG)	42
8.4 Drive locking	42
8.5 Data bands	43
8.6 Cryptographic erase	43
8.7 Authenticated firmware download	43
8.8 Power requirements	43
8.9 Supported commands	43
8.10 Sanitize - CRYPTOGRAPHIC ERASE	43
8.11 RevertSP	43
9.0 Defect and error management	44
9.1 Drive internal defects/errors	44
9.2 Drive error recovery procedures	44
9.3 SAS system errors	45
9.4 Background Media Scan	45
9.5 Media Pre-Scan	45
9.6 Deferred Auto-Reallocation	46
9.7 Idle Read After Write	46
9.8 Protection Information (PI)	46
9.8.1 Levels of PI	46
9.8.2 Setting and determining the current Type Level	46
9.8.3 Identifying a Protection Information drive	46
10.0 Installation	47
10.1 Drive orientation	47
10.2 Cooling	47
10.3 Drive mounting	48
10.4 Grounding	48
11.0 Interface requirements	49
11.1 SAS features	49
11.1.1 task management functions	49
11.1.2 task management responses	49
11.2 Dual port support	49
11.3 SCSI commands supported	50
11.3.1 Inquiry data	54
11.3.2 Mode Sense data	55
11.4 Miscellaneous operating features and conditions	59
11.4.1 SAS physical interface	59
11.4.2 Physical characteristics	62
11.4.3 Connector requirements	62
11.4.4 Electrical description	62
11.4.5 Pin descriptions	62
11.4.6 SAS transmitters and receivers	63
11.4.7 Power	63
11.5 Signal characteristics	63
11.5.1 Ready LED Out	63
11.5.2 Differential signals	64
11.6 SAS-2 Specification Compliance	64
11.7 Additional information	64
Numerics	65
A	65
B	65
C	65
D	65
E	66
F	66
G	66
H	66
I	66
J	66
K	66
L	66
M	66
N	67
O	67
P	67
Q	67
R	67
S	68
T	68
U	68
V	68
W	68

Seagate Enterprise Capacity 3.5 HDD/Constellation ES Constellation ES (.1) SAS - Page 24

Hysical, Electrical Specifications

Page 24 highlights