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Mechanical specifications

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6.5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figure 12 for detailed mounting configuration dimensions. See Section 8.4, "Drive mounting." Height (max): Width (max): Depth (max): Weight: 1.028 in 4.010 in 5.787 in ST3450856FC: 1.563 pounds ST3300656FC: 1.53 pounds ST3146356FC: 1.487 pounds 26.11 mm 101.85 mm 146.99 mm 0.709 kilograms 0.694 kilograms 0.674 kilograms H // T -Z- S REF [1] A -Z- M U -XP B L R REF N -X- C -X- F [1] E D Figure 12. Mounting configuration dimensions J K -Z- Notes: [1] Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom. Max screw penetration into side of drive is 0.15 in. (3.81 mm). Max screw tightening torque is 6.0 in-lb (0.6779 nm) with minimum full thread engagement of 0.12 in. (3.05 mm). Dimension Table Inches Millimeters A 1.028 max 26.10 max B 5.787 max 147.00 max C 4.000 ± .010 101.60 ± .25 D 3.750 ± .010 95.25 ± .25 E 0.125 ± .010 3.18 ± .25 F 1.750 ± .010 44.45 ± .25 H 1.122 ± .020 28.50 ± .50 J 4.000 ± .010 101.60 ± .25 K 0.250 ± .010 6.35 ± .25 L 1.638 ± .010 41.60 ± .25 M 0.181 4.60 N .040 1.02 P 1.625 ± .020 41.28 ± .50 R 1.618 41.10 S 0.276 ± .040 7.00 ± 1.02 T .015 max 0.38 max U .015 max 0.38 max 42 Cheetah 15K.6 FC Product Manual, Rev. D

Section	Page
1.0 Scope	7
2.0 Applicable standards and reference documentation	9
2.1 Standards	9
2.1.1 Electromagnetic compatibility	9
2.1.1.1 Electromagnetic susceptibility	9
2.1.2 Electromagnetic compliance	10
2.2 European Union Restriction of Hazardous Substances (RoHS)	10
2.3 Reference documents	11
3.0 General description	13
3.1 Standard features	14
3.2 Media description	15
3.3 Performance	15
3.4 Reliability	15
3.5 Formatted capacities	15
3.5.1 Programmable drive capacity	15
3.6 Factory-installed options	16
3.7 User-installed accessories	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 (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 Failures (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
5.2.6.2.1 State of the drive prior to testing	25
5.2.6.2.2 Invoking DST	25
5.2.6.2.3 Short and extended tests	26
5.2.6.2.4 Log page entries	26
5.2.6.2.5 Abort	26
5.2.7 Product warranty	27
6.0 Physical/electrical specifications	29
6.1 AC power requirements	29
6.2 DC power requirements	29
6.2.1 Conducted noise immunity	33
6.2.2 Power sequencing	33
6.2.3 Current profiles	33
6.3 Power dissipation	40
6.4 Environmental limits	42
6.4.1 Temperature	42
6.4.2 Relative humidity	43
6.4.3 Effective altitude (sea level)	43
6.4.4 Shock and vibration	44
6.4.4.1 Shock	44
6.4.4.2 Vibration	46
6.4.5 Acoustics	46
6.4.6 Air cleanliness	46
6.4.7 Corrosive environment	46
6.4.8 RoHS compliance statement	47
6.4.9 Electromagnetic susceptibility	47
6.5 Mechanical specifications	48
7.0 Defect and error management	49
7.1 Drive internal defects/errors	49
7.2 Drive error recovery procedures	49
7.3 FC-AL system errors	51
7.4 Background Media Scan	51
7.5 Media Pre-Scan	52
7.6 Deferred Auto-Reallocation	52
7.7 Idle Read After Write	52
8.0 Installation	53
8.1 Drive ID/option selection	53
8.2 Drive orientation	53
8.3 Cooling	53
8.4 Drive mounting	54
8.5 Grounding	54
9.0 Interface requirements	57
9.1 FC-AL features	57
9.1.1 Fibre Channel link service frames	57
9.1.2 Fibre Channel task management functions	58
9.1.3 Fibre Channel task management responses	58
9.1.4 Fibre Channel port login	59
9.1.5 Fibre Channel port login accept	60
9.1.6 Fibre Channel Process Login	60
9.1.7 Fibre Channel Process Login Accept	61
9.1.8 Fibre Channel fabric login	61
9.1.9 Fibre Channel fabric accept login	62
9.1.10 Fibre Channel Arbitrated Loop options	63
9.2 Dual port support	63
9.3 SCSI commands supported	63
9.3.1 Inquiry data	68
9.3.2 Mode Sense data	68
9.4 Miscellaneous operating features and conditions	73
9.5 FC-AL physical interface	74
9.5.1 Physical characteristics	74
9.5.1.1 Physical description	74
9.5.2 Connector requirements	75
9.5.3 Electrical description	75
9.5.4 Pin descriptions	75
9.5.5 FC-AL transmitters and receivers	76
9.5.6 Power	77
9.5.7 Fault LED Out	77
9.5.8 Active LED Out	78
9.5.9 Enable port bypass signals	78
9.5.10 Motor start controls	78
9.5.11 SEL_6 through SEL_0 ID lines	79
9.5.11.1 Parallel Enclosure Services Interface (ESI)	79
9.5.12 Device control codes	81
9.6 Signal characteristics	81
9.6.1 TTL input characteristics	81
9.6.2 LED driver signals	82
9.6.3 FC Differential output	82
9.6.4 FC Differential input	82

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Cheetah 15K.6 FC Product Manual, Rev. D

6.5

Mechanical specifications

The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions

of the front panel are shown in figure below. Refer to Figure 12 for detailed mounting configuration dimensions.

See Section 8.4, “Drive mounting.”

Figure 12.

Mounting configuration dimensions

Height (max):

1.028 in

26.11 mm

Width (max):

4.010 in

101.85 mm

Depth (max):

5.787 in

146.99 mm

Weight:

ST3450856FC: 1.563 pounds

0.709 kilograms

ST3300656FC: 1.53 pounds

0.694 kilograms

ST3146356FC: 1.487 pounds

0.674 kilograms

-Z-

[1]

-Z-

Mounting holes are 6-32 UNC 2B, three on

each side and four on the bottom. Max

screw penetration into side of drive is 0.15

in. (3.81 mm). Max screw tightening torque

is 6.0 in-lb (0.6779 nm) with minimum full

thread engagement of 0.12 in. (3.05 mm).

Notes:

[1]

Inches

26.10

147.00

101.60

95.25

3.18

44.45

28.50

101.60

6.35

41.60

4.60

1.02

41.28

41.10

7.00

0.38

1.028

5.787

4.000

3.750

0.125

1.750

1.122

4.000

0.250

1.638

0.181

.040

1.625

1.618

0.276

.015

max

± .010

± .020

± .010

± .020

± .040

max

± .25

± .50

± .25

± .50

± 1.02

max

Dimension Table

Millimeters

R REF

-Z-

-X-

REF