Home » Seagate Manuals » Hard Drives » Seagate ST3146854LC » Manual Viewer

Seagate ST3146854LC Cheetah 15K.4 SCSI Product Manual - Page 67

WARNING, Table 17, Commands supported by Cheetah 15K.4 SCSI family drive Continued - firmware download

UPC - 000056921496

View all Seagate ST3146854LC manuals

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

Page 67 highlights

Table 17: Commands supported by Cheetah 15K.4 SCSI family drive (Continued) Command name Test Unit Ready Verify BYTCHK bit Write Write and Verify DPO bit Write Buffer (modes 0, 2, supported) Firmware Download option (modes 5, 7, Ah and Bh supported) [3] Write Extended DPO bit FUA bit Write Long Write Same PBdata LBdata XDRead XDWrite XPWrite Command code 00h 2Fh 0Ah 2Eh 3Bh Supported by SCSI-2/3 Y Y Y Y Y Y Y Y 2Ah Y Y Y 3Fh Y 41h Y N N 52h N 50h N 51h N [1] The drive can format to any even number of bytes per sector from 512 to 528. [2] Tables 19 show how individual bits are set and which are changeable by the host. [3] WARNING: A power loss during flash programming can result in firmware corruption. This usually makes the drive inoperable. Cheetah 15K.4 SCSI Product Manual, Rev. D 57

Section	Page
1.0 Scope	11
2.0 Applicable standards and reference documentation	13
2.1 Standards	13
2.1.1 Electromagnetic compatibility	13
2.1.2 Electromagnetic susceptibility	13
2.2 Electromagnetic compliance	14
2.3 Reference documents	15
3.0 General description	17
3.1 Standard features	18
3.2 Media characteristics	18
3.3 Performance	19
3.4 Reliability	19
3.5 Formatted capacities	19
3.5.1 Programmable drive capacity	19
3.6 Factory installed accessories	20
3.7 Options (factory installed)	20
3.8 Accessories (user installed)	20
4.0 Performance characteristics	21
4.1 Internal drive characteristics (transparent to user)	21
4.2 SCSI performance characteristics (visible to user)	21
4.2.1 Access time	22
4.2.2 Format command execution time (minutes) [1]	22
4.2.3 Generalized performance characteristics	22
4.3 Start/stop time	23
4.4 Prefetch/multi-segmented cache control	23
4.5 Cache operation	23
4.5.1 Caching write data	24
4.5.2 Prefetch operation	24
4.5.3 Optimizing cache performance for desktop and server applications	25
5.0 Reliability specifications	27
5.1 Error rates	27
5.1.1 Recoverable Errors	27
5.1.2 Unrecoverable Errors	27
5.1.3 Seek errors	28
5.2 Reliability and service	28
5.2.1 Mean time between failure	28
5.2.2 Preventive maintenance	28
5.2.3 Hot plugging Cheetah 15K.4 SCSI disc drives	28
5.2.4 S.M.A.R.T.	29
5.2.5 Thermal monitor	30
5.2.6 Drive Self Test (DST)	31
5.2.6.1 DST Failure Definition	31
5.2.6.2 Implementation	32
5.2.6.2.1 State of the drive prior to testing	32
5.2.6.2.2 Invoking DST	32
5.2.6.2.3 Short and extended tests	32
5.2.6.2.4 Log page entries	33
5.2.6.2.5 Abort	33
5.2.7 Product warranty	33
6.0 Physical/electrical specifications	35
6.1 AC power requirements	35
6.2 DC power requirements	35
6.2.1 Conducted noise immunity	37
6.2.2 Power sequencing	37
6.2.3 Current profile	37
6.3 Power dissipation	41
6.4 Environmental limits	44
6.4.1 Temperature	44
6.4.2 Relative humidity	44
6.4.3 Effective altitude (sea level)	44
6.4.4 Shock and vibration	45
6.4.4.1 Shock	45
6.4.4.2 Vibration	47
6.4.5 Air cleanliness	47
6.4.6 Corrosive environment	47
6.4.7 Acoustics	48
6.4.8 Electromagnetic susceptibility	48
6.5 Mechanical specifications	48
7.0 Defect and error management	51
7.1 Drive internal defects	51
7.2 Drive error recovery procedures	51
7.3 SCSI systems errors	53
7.4 Background Media Scan	53
7.4.1 Media Pre-Scan	54
8.0 Installation	55
8.1 Drive ID/option select header	55
8.1.1 Notes for Figures 18, 19, and 20.	58
8.1.2 Function description	59
8.2 Drive orientation	60
8.3 Cooling	60
8.4 Drive mounting	61
8.5 Grounding	61
9.0 Interface requirements	63
9.1 General description	63
9.2 SCSI interface messages supported	63
9.3 SCSI interface commands supported	64
9.3.1 Inquiry Vital Product data	68
9.3.2 Mode Sense data	69
9.4 SCSI bus conditions and miscellaneous features supported	73
9.5 Synchronous data transfer	74
9.5.1 Synchronous data transfer periods supported	74
9.5.2 REQ/ACK offset	74
9.6 Physical interface	74
9.6.1 DC cable and connector	75
9.6.2 SCSI interface physical description	77
9.6.3 SCSI interface cable requirements	77
9.6.3.1 Cable requirements	77
9.6.4 Mating connectors	78
9.6.4.1 Mating connectors for LW model drives	78
9.6.4.2 Mating connectors for LC model drives	79
9.7 Electrical description	87
9.7.1 Multimode-SE and LVD alternatives	87
9.7.1.1 General cable characteristics	88
9.7.1.2 Single-ended drivers/receivers	88
9.7.1.3 Cables for low voltage differential drivers/receivers	89
9.8 Terminator requirements	90
9.9 Terminator power	90
9.10 Disc drive SCSI timing	91
9.11 Drive activity LED	93
10.0 Seagate Technology support services	95
Symbols	101
Numerics	101
A	101
B	101
C	101
D	101
E	102
F	102
G	102
H	102
I	103
J	103
L	103
M	103
N	103
O	103
P	103
R	104
S	104
T	105
U	105
V	105
W	105