Seagate ST3146855LC Cheetah 15K.5 SCSI Product Manual

Seagate ST3146855LC - Cheetah 146.8 GB Hard Drive Manual

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  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 1
    Product Manual Cheetah 15K.5 SCSI ST3300655LW ST3300655LC ST3146855LW ST3146855LC ST373455LW ST373455LC 100384776 Rev. H May 2009
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 2
    trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/ or other countries. All other trademarks or registered trademarks are the property of their respective owners. One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 3
    service 16 5.2.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 16 5.2.2 Preventive maintenance 16 5.2.3 Hot plugging Cheetah 15K.5 SCSI disc drives 17 5.2.4 S.M.A.R.T 17 5.2.5 Thermal monitor 19 5.2.6 Drive limits 30 Cheetah 15K.5 SCSI Product Manual, Rev. H i
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 4
    connectors 61 9.7 Electrical description 70 9.7.1 Multimode-SE and LVD alternatives 70 9.8 Terminator requirements 73 9.9 Terminator power 73 9.10 Disc drive SCSI timing 74 9.11 Drive activity LED 76 10.0 Seagate Technology support services 77 ii Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 5
    Typical ST3300655LW drive +5 V LVD current profile 26 ST3300655LC DC drives 63 Nonshielded 68-pin SCSI device connector used on LW drives 64 Nonshielded 80-pin SCSI SCA-2 connector used on LC drives 65 Typical SE-LVD alternative transmitter receiver circuits 71 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 6
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 7
    1.0 Scope This manual describes Seagate® Technology LLC, Cheetah® 15K.5 SCSI disc drives. Cheetah 15K.5 SCSI drives support the small computer system interface (SCSI) as described in the ANSI SCSI SPI-4 interface specifications to the extent described in this manual. The SCSI Interface Manual (part
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 8
    2 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 9
    standards as noted in the appropriate sections of this Manual, the Seagate Parallel SCSI Interface Manual, part number 100293069, and the SCSI Commands Reference Manual, part number 100293068. The Cheetah 15K.5 SCSI disc drive is a UL recognized component per UL1950, CSA certified to CSA C22
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 10
    use microprocessor • 3.5-inch floppy disc drive • Keyboard • Monitor/display • Printer • External modem • Mouse Although the test system with this Seagate model If this model has Australian C-Tick If this model has the C-Tick Marking If this model has drive this model has in Seagate products drives
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 11
    with. 2.4 Reference documents Cheetah 15K.5 SCSI Installation Guide Seagate P/N 100384777 Safety and Regulatory Agency Specifications Seagate P/N 75789512 SCSI Commands Reference Manual Seagate P/N 100293068 Parallel SCSI Interface Product Manual Seagate P/N 100293069 Applicable ANSI
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 12
    6 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 13
    host adapters. Table 1 lists the features that differentiate the Cheetah 15K.5 SCSI models. Table 1: Drive model number vs. differentiating features Model number ST3300655LW ST3146855LW ST373455LW ST3300655LC ST3146855LC ST373455LC Number of active heads 8 4 2 8 4 2 I/O circuit type [1] Single
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 14
    buffer • Hot plug compatibility (Section 9.6.4.2 lists proper host connector needed) for LC model drives • Drive Self Test (DST) • Supports SCSI bus fairness 3.2 Media characteristics The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 15
    listed above. Using the drives in this manner gives the absolute maximum capacity potential, but the user must determine if the extra capacity potential is useful, or whether their assurance of backward and forward compatibility takes precedence. Cheetah 15K.5 SCSI Product Manual, Rev. H 9
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 16
    the Cheetah 15K.5 Installation Guide, part number 100384777, and the Safety and Regulatory Agency Specifications, part number 75789512 (unless otherwise specified). The factory also ships with the drive a small bag of jumper plugs used for the J5 and J6 option select jumper headers (on LW models
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 17
    bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. ** Rounded off value. 4.2 SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply to all models of the Cheetah 15K.5 SCSI family unless
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 18
    drives. 2. Access to data = access time + latency time. 4.2.2 Format command execution time (minutes) [1] Maximum (with verify) Maximum (no verify) ST3300655LW ST3300655LC at format time using the spare support the rates listed and no cable loss. 12 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 19
    Refer to the SCSI Interface Manual for more detail concerning the cache bits. Of the 16 Mbytes physical buffer space in the drive, approximately 13,000 kbytes can be used as a cache. The buffer , refer to section 4.5.2 for operation from this point. Cheetah 15K.5 SCSI Product Manual, Rev. H 13
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 20
    . Sending a size specification using the Mode Select command ( drive enables prefetch of contiguous blocks from the disc when it senses that a prefetch hit will likely occur. The drive disables prefetch when it decides that a prefetch hit is not likely to occur. 14 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 21
    rates stated in this specification assume the following: • The drive is operated per this specification using DC power as defined in this manual (see Section 6.2). • Errors caused by host system from the same cause are treated as 1 error for that block. Cheetah 15K.5 SCSI Product Manual, Rev. H 15
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 22
    Cheetah 15K.5 SCSI disc drives by ensuring that the drive receives adequate cooling. Section 6.0 provides temperature measurements and other information that may be used to enhance the service life of the drive preventive maintenance shall be required. 16 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 23
    Seagate Cheetah 15K.5 SCSI disc drives support uses single- drive insertion, care should be taken to avoid exceeding the limits stated in Section 6.4.4, "Shock and vibration" in this manual firmware will monitor specific attributes for degradation over time but cannot predict instantaneous drive
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 24
    drive can compared S.M.A.R.T. uses to firmware keeps a running count of the number of times the error rate for each attribute is unacceptable. To accomplish this, a counter is incremented whenever the error rate is unacceptable and decremented (not to exceed 18 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 25
    the maximum temperature limit according to the drive specification. The second trip point is user-selectable using the Log Select command. The reference temperature the drive fails the test, remove it from service and return it to Seagate for service. Cheetah 15K.5 SCSI Product Manual, Rev. H 19
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 26
    of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive. A Drive Not Ready condition is reported by the drive under the following conditions: • Motor will not spin test segment, and a read/verify scan segment. 20 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 27
    facility in accordance with Seagate's warranty procedure. Seagate will pay for transporting the repair or replacement item to customer. For more detailed warranty information refer to the Standard terms and conditions of Purchase for Seagate products. Cheetah 15K.5 SCSI Product Manual, Rev. H 21
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 28
    return information Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory-seal voids the warranty. 22 Cheetah 15K.5 SCSI Product Manual, Rev
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 29
    the Cheetah 15K.5 SCSI drive. 6.1 None. AC power requirements 6.2 DC power requirements The voltage and current requirements for a single drive are shown in the following table. Values indicated apply at the drive power connector. The tables show current values in Amperes. Table 3: ST3300655LC
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 30
    . Power supply at nominal voltage. Number of drives tested = 6, 35 Degrees C ambient. [2] drives from a common supply, careful consideration for individual drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak 24 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 31
    at the drive power connector. models or on the backplane for LC models. 6.2.3 Current profile Figures 1 and 2 show +5V and +12V sample current profiles for the ST3300655LC model. All times and currents are typical. See Table 3 for maximum current requirements. Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 32
    Figure 1. Typical ST3300655LW drive +12V LVD current profile Figure 2. Typical ST3300655LW drive +5 V LVD current profile 26 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 33
    6.3 Power dissipation ST3300655LW/ST3300655LC For drives using low voltage differential interface circuits, 250.0 300.0 350.0 400.0 I/Os per Second Figure 3. ST3300655LC DC current and power vs. IOPS (LVD) Power (watts) 5Vo lt A 12 Volt A Watts Cheetah 15K.5 SCSI Product Manual, Rev. H 27
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 34
    ST3146855LW/ST3146855LC For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 10.39 watts Figure 4. ST3146855LC DC current and power vs. IOPS (LVD) Power (watts) 5Vo lt A 12 Volt A Watts 28 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 35
    ST373455LW/ST373455LC For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 8.49 per Second Figure 5. ST373455LC DC current and power vs. IOPS (LVD) Power (watts) 5Volt A 12 Volt A Wat t s Cheetah 15K.5 SCSI Product Manual, Rev. H 29
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 36
    (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. HDA Temp. Check Point 1.0" .5" Figure 6. Locations a. Operating -1,000 to +10,000 feet (-305 to +3,048 meters) 30 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 37
    transportation. This includes both isolated drives and integrated drives. The drive subjected to nonrepetitive shock not as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 mm) Cheetah 15K.5 SCSI Product Manual, Rev. H 31
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 38
    single or multipacks with a gross weight of 20 pounds (8.95 kg) or less by Seagate for general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or equivalent. Z Y X X Z Y Figure 7. Recommended mounting 32 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 39
    components to uncontrolled chemical pollutants and corrosive chemicals as electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 40
    tones more than 10 dB above the masking noise on typical drives when measured according to Seagate specification 30553-001. There will not be any tones more than 24 38 max V .265 ± .010 6.73 ± .25 E D Figure 8. LW mounting configuration dimensions 34 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 41
    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 (3.32 nm .015 max 0.38 max U .015 max 0.38 max Figure 9. E D LC mounting configuration dimensions Cheetah 15K.5 SCSI Product Manual, Rev. H 35
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 42
    36 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 43
    initiator and the drive). In addition, Seagate provides the following technologies used to increase data integrity and drive reliability: • The drive firmware error recovery algorithms consist of 11 levels for read recoveries and 5 levels for writes. Cheetah 15K.5 SCSI Product Manual, Rev. H 37
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 44
    the disc drive to transfer drive may send erroneous data in order to maintain the continuous flow of data. The RC bit should only be used set, the drive will stop manual. A setting of zero (0) will result in the drive command. The use of the Recovery the drive is 0 will use the drive's default value
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 45
    reads across the entire pack of the media while the drive is idle. In RAID arrays, BMS allows hot spare drives to be scanned for defects prior to being put into service by the host system. On regular duty drives, if the host system makes use of the BMS Log Page, it can avoid placing
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 46
    in contrast to the system having to use the Reassign Command to reassign a the default setting from the Seagate factory. With AWRE and ARRE drive reads recently written data from the media and compares it to valid write command data resident in the drives Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 47
    power to make the new settings effective. • Installation instructions are provided by host system documentation or with any additionally purchased drive installation software. If necessary see Section 10 for Seagate support services telephone numbers. • Do not remove the manufacturer's installed
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 48
    ID selection use jumpers as shown drive ID. Remote Switches Pins 2, 4, 6, and 8 are normally not grounded. They are driven low (ground) for 250 ms after a Reset or PWR ON to allow drive to read SCSI ID selected. Figure 10. J5 jumper header (on LW models only) 42 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 49
    is installed. OFF or ON underlined is factory default condition. The PCBA on LC models does not have connector J5 or J6. The J5 connector signals conform to SFF8009 Revision 2.0, Unitized Connector for Cabled Drives, signal assignments for auxiliary connectors. [2] These signals are also on 80-pin
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 50
    Off Jumper function description Forces drive to use single-ended I/O drivers/receivers only. Drive can operate on the interface drives do not have terminator circuits on the drive. Note. J6 does not exist on the LC model and is supported on the LW model only. 44 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 51
    enclosure must provide heat removal from the drive. You should confirm that the host enclosure is designed to ensure that the drive operates within the temperature measurement guidelines side) Figure 12. Air flow (suggested) Above unit Under unit Cheetah 15K.5 SCSI Product Manual, Rev. H 45
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 52
    mounting the drive in any kind of 3.5-inch to 5.25-inch adapter frame, verify with Seagate Technology that the drive can meet the manual. 8.5 Grounding Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the user. The equipment in which the drive
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 53
    or in the Seagate Parallel SCSI Interface Manual and the SCSI Commands Reference Manual . 9.2 SCSI interface messages supported Table 7 lists the messages supported by the Cheetah 15K.5 SCSI family drives. Table 7: SCSI messages supported by Cheetah 15K.5 SCSI family drives Message name Abort
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 54
    in Ultra320 mode. Table 8: Commands supported by Cheetah 15K.5 SCSI family drive Command name Change Definition Compare Copy Copy and Verify Format Unit [1] DPRY bit supported DCRT bit supported STPF bit supported IP bit supported DSP bit supported IMMED bit supported VS (vendor specific) Inquiry
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 55
    Table 8: Commands supported by Cheetah 15K.5 SCSI family drive (Continued) Command name Lock-unlock (1Ah) Command code 36h 4Ch 4Dh 15h 55h 1Ah Supported by SCSI-2/3 N Y Y N Y Y N N N Y Y Y N Y Y N N Y Y Y N Y Y Y Y Y Y [2] Y Y [2] Y Y Y Y Y Y Y N Y Y Cheetah 15K.5 SCSI Product Manual, Rev. H 49
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 56
    supported by Cheetah 15K.5 SCSI family drive (Continued) Command name Rigid Disc Drive Geometry page (04h) Unit Attention page (00h) Verify Error Recovery page (07h) Xor Control page (10h) Mode Sense (10) (same pages as Mode Sense 1Ah) Prefetch Read Read Buffer (modes 0, 2, 3, Ah and Bh supported
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 57
    8: Commands supported by Cheetah 15K.5 SCSI family drive (Continued) Command name Translate page (40h) Set Limits Start Unit/Stop Unit (spindle ceases rotating) Synchronize Cache Test Unit Ready Verify BYTCHK bit Write Write and Verify DPO bit Write Buffer (modes 0, 2, supported) Firmware Download
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 58
    serial number. [ ]3 Bytes 18 through 26 reflect model of drive. The table above shows the hex values for Model ST3300655LW. Refer to the values below for the values of bytes 18 through 26 of you particular model: ST3300655LW 33 33 30 30 36 35 35 4C 57 ST3300655LC 33 33 30 30 36 35 35 4C 43
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 59
    maintains four sets of Mode parameters, Default values, Saved values, Current values and Changeable values. Default values are hard coded in the drive firmware that is stored in flash EPROM nonvolatile memory on the drive PCBA. Default values can be changed only by downloading a complete set of new
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 60
    0f 00 00 00 CHG 80 06 f7 40 0f 00 00 00 READ CAPACITY DATA 22 ec b2 5b 00 00 02 00 54 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 61
    00 0f 00 00 00 CHG 80 06 f7 40 0f 00 00 00 READ CAPACITY DATA 11 17 73 2f 00 00 02 00 Cheetah 15K.5 SCSI Product Manual, Rev. H 55
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 62
    0f 00 00 00 CHG 80 06 f7 40 0f 00 00 00 READ CAPACITY DATA 08 8b b9 97 00 00 02 00 56 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 63
    supported by the drive are listed below. These conditions cause the SCSI device to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneous operating features supported are also listed here. Refer to the Parallel SCSI Interface Manual tags supported) Read Supported Y
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 64
    10 25 40.01 12 50 20.0 25 100 10.0 50 200 5.0 1. This transfer rate is only allowed when using the LVD interface. 9.5.2 REQ/ACK offset Cheetah 15K.5 SCSI family drives support REQ/ACK offset values from 7 to 63 (3Fh). Offsets of 1 through 6 are negotiated to 0 (asynchronous transfer
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 65
    parts may be used. Type of cable 14 AWG Connector MP 1-480424-0 Contacts (20-14 AWG) AMP 60619-4 (Loose Piece) AMP 61117-4 (Strip) LC model drives receive power through Figure 13. LW model drive physical interface (68-pin J1 SCSI I/O connector) Cheetah 15K.5 SCSI Product Manual, Rev. H 59
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 66
    80-pin SCSI I/O Connector Pin 1 J6 Figure 14. LC model drive physical interface (80-pin J1 SCSI I/O connector) 9.6.2 SCSI interface physical description Cheetah 15K.5 SCSI drives support the physical interface requirements of the Ultra320 SCSI Parallel Interface-4 (SPI-4), and operate compatibly
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 67
    the interface transfer rates supported by the various drive models defined in this manual. Table 16: Interface transfer rates supported Interface type/ drive models SE ST3300655LW/LC ST3146855LW/LC ST373455LW/LC LVD ST3300655LW/LC ST3146855LW/LC ST373455LW/LC Maximum transfer rate Asynchronous
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 68
    connectors for LC model drives The drive connector and host equipment mating connector must meet the provisions of "SFF-8451 Specification for SCA-2 Unshielded Connections." To obtain this specification, visit the following web site: www.sffcommittee.org 62 Cheetah 15K.5 SCSI Product Manual
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 69
    (with ground guide-pin) 787311-1 with polarization 787311-2 without polarization Right-angle to PCBA connectors Seagate P/N: 77678559 Amp US P/N: 2-557101-1 Amp Japan P/N: 5-175474-9 For additional information call Amp FAX service at 1-800-522-6752. "LW" Model Drive Terminator [7] [6] 2 through
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 70
    (2.00) 3.650 (92.71) .840 - .005 (21.34) Pos. 2 .767 (19.48) .083 +-.0.00012dia (2.1) Trifurcated Pins (4 places) Figure 16. Nonshielded 68-pin SCSI device connector used on LW drives 64 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 71
    ) 0.3 (.012) M YM Pin 1 1.27 (.05) Typ X CL of Datum Y Pin 40 Grounding Pins Pin 41 Pin 80 Figure 17. Nonshielded 80-pin SCSI SCA-2 connector used on LC drives Back View Cheetah 15K.5 SCSI Product Manual, Rev. H 65
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 72
    GND GND TermPwr TermPwr Reserved GND -ATN GND -BSY -ACK -RST -MSG -SEL -C/D -REQ -I/O -DB8 -DB9 -DB10 -DB11 Notes [ ]: See page following Table 20. 66 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 73
    -DB2 -DB3 -DB4 -DB5 -DB6 -DB7 -DBP Ground Ground TermPwr TermPwr Reserved Ground -ATN Ground -BSY -ACK -RST -MSG -SEL -C/D -REQ -I/O -DB8 -DB9 -DB10 -DB11 Cheetah 15K.5 SCSI Product Manual, Rev. H 67
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 74
    Table 19: LC 80-pin single-ended (SE) I/O connector pin assignments [11] Note. A minus sign preceding a signal name LED OUT [4] [9] DLYD-START [6] [9] [12] SCSI ID (1) [7] [9] [12] SCSI ID (3) [7] [9] [12] Notes [ ]: See page following Table 20. 68 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 75
    Table 20: LC 80-pin single-ended (LVD) I/O connector pin assignments [11] Note. A minus sign preceding a V GND ACTIVE LED OUT [4] [9] DLYD_START [6] [9] [12] SCSI ID (1) [7] [9] [12] SCSI ID (3) [7] [9] [12] Notes [ ]: See page following this table. Cheetah 15K.5 SCSI Product Manual, Rev. H 69
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 76
    used to implement equivalent contact assignments. [3] Connector contacts are on 0.050 inch (1.27 mm) centers. [4] Front panel LED signal; indicates drive activity for host front panel hard drive ANSI SPI-4 specification T10/1365D). LC and LW model drives do not have onboard terminators. Termination
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 77
    rates. 9.7.1.2 Single-ended drivers/receivers The maximum total cable length allowed with drives using single-ended I/O driver and receiver circuits depends on several factors. Table 21 from the transceiver to the connection to the mainline SCSI bus. Cheetah 15K.5 SCSI Product Manual, Rev. H 71
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 78
    LW drives are shown in Table 18. Single-ended I/O pin assignments for LC models are shown in Table 19. The LC model does twisted-pair cables can be used to implement a 12-meter system, while Twist-n-flat cables cannot be used to implement a 12-meter system Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 79
    the external terminator. See Section 8.1 for illustrations that show how to place jumpers for this configuration. LC drives These drives cannot furnish terminator power because no conductors in the 80-pin I/O connector are devoted to terminator power. Cheetah 15K.5 SCSI Product Manual, Rev. H 73
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 80
    SCSI timing Table 24: Disc drive SCSI timing These values are not current Cheetah 15K.5 SCSI values, but are listed for information only. Description Command Dependent 0.98 μs 0.51 μs 4.00 μs 0.79 μs 0.04 μs 0.58 μs 0.12 μs 0.12 μs 0.12 μs 0.12 μs 74 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 81
    an Initiator and a Drive. The Drive is capable of setting periods as given in Section 9.5. See also the Synchronous data transfer section and the Extended messages section of the Parallel SCSI Interface Manual for a description of synchronous data transfer operation. Cheetah 15K.5 SCSI Product
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 82
    activity LED The following table provides drive activity LED status. Table 25: Drive activity LED status Spindle status Command status LED status Spinning up with DC power processed LED toggles on/off on each cylinder boundary Toggles on/off 76 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 83
    contain product launch, EOL, pricing, promotions and other channel-related information. To learn more about the benefits or to register, go to spp.seagate.com, any time, from anywhere in the world. Seagate Service Centers Presales Support Our Presales Support staff can help you determine
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 84
    and Africa, go to the "Contact Us" page on www.seagate.com. Asia/Pacific Support Services For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific, go to the "Contact Us" page on www.seagate.com. 78 Cheetah 15K.5 SCSI Product Manual, Rev. H
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 85
    cache segments 14 caching write data 14 Canadian Department of Communications 3 capacities 10 capacity, drive, programmable 10 CE Marking 4 changeable bit 53 changeable value 53 check condition 53 circuits 23 DC power source 62 dedicated landing zone 7 Cheetah 15K.5 SCSI Product Manual, Rev. H 79
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 86
    11 drive 33 drive activity 70 drive activity LED 76 drive capacity 11 programmable 10 drive default mode parameter 41 drive firmware 53 drive ID 41 drive ID select jumper connector 41 drive ID/option select header 41 drive interface connector 62 drive internal defects and errors 37 drive mounting
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 87
    mode select command 13, 53 mode sense command 53 mode sense data 53 mode sense value 53 model number table 7 motor start command 13 motor start delay option 70 motor start option 13, 24, 13 power dissipation 27 power distribution 3 power sequencing 25 Cheetah 15K.5 SCSI Product Manual, Rev. H 81
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 88
    data page 52 programmable drive capacity 10 R radio service supported 48 SCSI interface connector 58 SCSI interface data 12 SCSI Interface Product Manual 3, 5, 7 SCSI systems error 39 SCSI systems error management 39 Seagate support service voltage 24 support services 77 synchronous support services
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 89
    , 24 W warranty 9, 21 wet bulb temperature 30 wide Ultra160 SCSI interface 7 WP jumper 44 write protect 44 write retry count 37 Z zoned bit recording (ZBR) 8 Cheetah 15K.5 SCSI Product Manual, Rev. H 83
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 90
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 91
  • Seagate ST3146855LC | Cheetah 15K.5 SCSI Product Manual - Page 92
    Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100384776, Rev. H, Printed in USA
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Product Manual
Cheetah 15K.5 SCSI
100384776
Rev. H
May 2009
ST3300655LW
ST3300655LC
ST3146855LW
ST3146855LC
ST373455LW
ST373455LC