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Seagate ST336754SS - Cheetah 36.7 GB Hard Drive Product Manual

Cheetah 15k.4 sas product manual
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Cheetah 15K.4 SAS
ST3146854SS
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  • Page 1 Cheetah 15K.4 SAS ST3146854SS ST373454SS ST336754SS...
  • Page 3 Cheetah 15K.4 SAS ST3146854SS ST373454SS ST336754SS...
  • Page 4 Seagate Technology LLC. Other product names are regis- tered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
  • Page 5 Revision status summary sheet Revision Date Sheets Affected Rev. A 11/22/04 All. Rev. B 05/04/05 Pages 11, 37, 58, and 59.

  • Page 7: Table Of Contents

    Contents Scope ............... . 1 Standards, compliance and reference documents .
  • Page 8 Seagate Technology support services ........
  • Page 9 List of Figures Figure 1. Cheetah 15K.4 SAS disc drive 1 Figure 2. Typical ST3146854SS drive +12V current profile ..........28 Figure 3.
  • Page 10 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 11: Scope

    SAS (Serial Attached SCSI) disc drives. Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Inter- face Manual (part number 100293071) describes the general SAS characteristics of this and other Seagate SAS drives.
  • Page 12 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 13: Standards, Compliance And Reference Documents

    Section 8.3. Standards The Cheetah SAS family complies with Seagate standards as noted in the appropriate sections of this manual and the Seagate SAS Interface Manual, part number 100293071. The Cheetah disc drive is a UL recognized component per UL1950, CSA certified to CAN/CSA C22.2 No. 950- 95, and VDE certified to VDE 0805 and EN60950.

  • Page 14: Compliance

    • External modem • Mouse Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide the appropriate marking for their product.

  • Page 15: Reference Documents

    Specification for Acoustic Test Requirement and Procedures Seagate part number: 30553-001 Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) In case of conflict between this document and any referenced document, this document takes precedence.
  • Page 16 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 17: General Description

    General description Cheetah drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage for a variety of systems including engineering workstations, net- work servers, mainframes, and supercomputers.

  • Page 18: Standard Features

    Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting the SCSI protocol • Support for SAS expanders and fanout adapters • Firmware downloadable using the SAS interface •...

  • Page 19: Reliability

    68,766,592 4194B80 2. Seagate drives also may be used at the maximum available capacity at a given block size, but the excess capacity above the guaranteed level will vary between other drive families and from generation to genera- tion, depending on how each block size actually formats out for zone frequencies and splits over servo bursts.

  • Page 20: Factory-Installed Options

    Factory-installed options You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options): • Other capacities can be ordered depending on sparing scheme and sector size requested. •...

  • Page 21: Performance Characteristics

    Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah drives. Internal drive characteristics ST3146854SS ST373454SS ST336754SS Drive capacity 146.8 73.4 36.7 Gbytes (formatted, rounded off value) Read/write data heads Bytes per track 471,916 471,916 471,916 Bytes (average, rounded off values) Bytes per surface 18,351...

  • Page 22: Format Command Execution Time (Minutes)

    4.2.2 Format command execution time (minutes) ST3146854SS ST373454SS ST336754SS Maximum (with verify) Maximum (without verify) 4.2.3 General performance characteristics Minimum sector interleave 1 to 1 Data buffer to/from disc media (one 512-byte logical block)* Minimum 685 Mbits/sec Maximum 1,142 Mbits/sec SAS Interface maximum instantaneous transfer rate 300 Mbytes/sec* per port (dual port = 600 Mbytes/sec*)

  • Page 23: Prefetch/Multi-Segmented Cache Control

    If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 30 sec- onds (maximum) from removal of DC power.

  • Page 24: Caching Write Data

    During a prefetch, the drive crosses a cylinder boundary to fetch data only if the Discontinuity (DISC) bit is set to 1 in bit 4 of byte 2 of the Mode Select parameters page 08h. Default is zero for bit 4. Each cache segment is actually a self-contained circular buffer whose length is an integer number of logical blocks.

  • Page 25: Optimizing Cache Performance For Desktop And Server Applications

    During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if Mode parameters page 08h, byte 2, bit 4 is set to 1 (Discontinuity--DISC bit). When prefetch (read look-ahead) is enabled (enabled by DRA = 0), it operates under the control of ARLA (Adaptive Read Look-Ahead).
  • Page 26 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 27: Reliability Specifications

    Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all inter- face timings, power supply voltages, environmental requirements and drive mounting constraints. Seek error rate: Less than 10 errors in 10 seeks Read Error Rates Recovered Data Less than 10 errors in 10 bits transferred (OEM default settings)

  • Page 28: Seek Errors

    5.1.3 Seek errors A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails, a seek positioning error (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense Key.

  • Page 29: S.m.a.r.t

    Note. It is the responsibility of the systems integrator to assure that no temperature, energy, voltage haz- ard, or ESD potential hazard is presented during the hot connect/disconnect operation. Discharge the static electricity from the drive carrier prior to inserting it into the system. Caution.

  • Page 30: Thermal Monitor

    Reporting control Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page (1Ch). Subject to the reporting method, the firmware will issue to the host an 01-5Dxx sense code. The error code is preserved through bus resets and power cycles. Determining rate S.M.A.R.T.

  • Page 31: Drive Self Test (Dst)

    If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service. 5.2.6.1 DST failure definition The drive will present a “diagnostic failed”...
  • Page 32 DST. It is the responsibility of the host application to determine the “not ready” cause. While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

  • Page 33: Product Warranty

    Seagate’s option and at no charge to the customer, if returned by customer at customer’s expense to Seagate’s designated facility in accordance with Seagate’s warranty procedure.
  • Page 34 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 35: Physical/Electrical Specifications

    Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. AC power requirements None. DC power requirements The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive connector.
  • Page 36 Table 3: DC power requirements ST373454SS ST373454SS ST373454SS 3 Gbit mode 1.5 Gbit mode Notes (Amps) (Amps) (Amps) (Amps) Voltage +12V [2] +12V [2] Regulation ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 1.02 0.56 1.07 0.56 Maximum starting current (peak DC) DC...

  • Page 37: Conducted Noise Immunity

    This condition occurs after OOB and Speed Negotiation completes but before the drive has received the Notify Spinup primitive. See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. Operating condition is defined as random 8 block reads with 225 I/Os per second for ST3146854SS drives, 230 I/Os per second for ST373454SS drives, and 230 I/Os per second for ST336754SS drives.

  • Page 38: Figure 2. Typical St3146854Ss Drive +12V Current Profile

    Figure 2. Typical ST3146854SS drive +12V current profile Figure 3. Typical ST3146854SS drive +5V current profile Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 39: Figure 4. Typical St373454Ss Drive +12V Current Profile

    Figure 4. Typical ST373454SS drive +12V current profile Figure 5. Typical ST373454SS drive +5V current profile Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 40: Figure 6. Typical St336754Ss Drive +12V Current Profile

    Figure 6. Typical ST336754SS drive +12V current profile Figure 7. Typical ST336754SS drive +5V current profile Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 41: Power Dissipation

    Power dissipation ST3146854SS in 3 Gbit operation Typical power dissipation under idle conditions in 3Gb operation is 14.34 watts (48.93 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8).

  • Page 42: Figure 10. St373454Ss (3 Gbit) Dc Current And Power Vs. Input/Output Operations Per Second

    in 3 Gbit operation ST373454SS Typical power dissipation under idle conditions in 3Gb operation is 11.8 watts (40.27 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis.

  • Page 43: Figure 12. St336754Ss (3 Gbit) Dc Current And Power Vs. Input/Output Operations Per Second

    in 3 Gbit operation ST336754SS Typical power dissipation under idle conditions in 3Gb operation is 10.33 watts (35.25 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis.

  • Page 44: Environmental Limits

    Non-operating –40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (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.

  • Page 45: Relative Humidity

    6.4.2 Relative humidity The values below assume that no condensation on the drive occurs. a. Operating 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour. b. Non-operating 5% to 95% non-condensing relative humidity. 6.4.3 Effective altitude (sea level) a.

  • Page 46: Figure 15. Recommended Mounting

    36 in (914 mm) Drives packaged in 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.

  • Page 47: Air Cleanliness

    The sil- ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an ambient relative humidity greater than 95%.

  • Page 48: Acoustics

    There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea- sured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive.

  • Page 49: Defect And Error Management

    Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capaci- ties are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI protocol involves the drive internal defect/error management and SAS system error considerations (errors in communications between the initiator and the drive).

  • Page 50: Sas System Errors

    When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and Recovery Time Limit parameters. However, the drive does not report any unrecovered errors. Table 5: Read and write retry count maximum recovery times Maximum recovery time per...

  • Page 51: Installation

    Installation Cheetah 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.

  • Page 52: Cooling

    Cooling Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding the drive will not exceed temperature conditions specified in Section 6.4.1, "Temperature." The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and head and disc assembly (HDA).

  • Page 53: Drive Mounting

    Drive mounting Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface. The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm).
  • Page 54 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 55: Interface Requirements

    Interface requirements This section partially describes the interface requirements as implemented on Cheetah drives. Additional infor- mation is provided in the SAS Interface Manual (part number 100293071). SAS features This section lists the SAS-specific features supported by Cheetah drives. 9.1.1 task management functions Table 6 lists the SAS task management functions supported.

  • Page 56: Dual Port Support

    Dual port support Cheetah SAS drives have two independent ports. These ports may be connected in the same or different SCSI domains. Each drive port has a unique SAS address. The two ports run at the same link rate. The first port to successfully complete speed negotiation sets the link rate support by both ports.

  • Page 57: Scsi Commands Supported

    SCSI commands supported Table 8 lists the SCSI commands supported by Cheetah drives. Table 8: Commands supported by Cheetah 15K.4 SAS family drives Command name Command code Supported Change Definition Compare Copy Copy and Verify Format Unit [1] DPRY bit supported DCRT bit supported STPF bit supported IP bit supported...
  • Page 58 Table 8: Commands supported by Cheetah 15K.4 SAS family drives (continued) Command name Command code Supported Non-medium Error page (06h) Pages Supported list (00h) Read Error Counter page (03h) Read Reverse Error Counter page (04h) Self-test Results page (10h) Start-stop Cycle Counter page (0Eh) Temperature page (0Dh) Verify Error Counter page (05h) Write error counter page (02h)
  • Page 59 Table 8: Commands supported by Cheetah 15K.4 SAS family drives (continued) Command name Command code Supported Supported Diagnostics pages (00h) Translate page (40h) Release Release (10) Request Sense Actual Retry Count bytes Extended Sense Field Pointer bytes Reserve 3rd Party Reserve Extent Reservation Reserve (10) 3rd Party Reserve...
  • Page 60 Table 8: Commands supported by Cheetah 15K.4 SAS family drives (continued) Command name Command code Supported Write Same PBdata LBdata XDRead XDWrite XPWrite Cheetah drives can format to any multiple of four bytes per logical block in the range 512 to 704 bytes. Warning.

  • Page 61: Inquiry Data

    9.3.1 Inquiry data Table 9 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual. Table 9: Cheetah 15K.4 SAS inquiry data Bytes Data (hex) 0-15 03** Vendor ID 16-31 Product ID 32-47...
  • Page 62 Select command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check Condition” status. On drives requiring unique saved values, the required unique saved values are stored into the saved val- ues storage location on the media prior to shipping the drive. Some drives may have unique firmware with unique default values also.
  • Page 63 9.3.2.1 ST3146854SS Mode Sense data DEF Page 0(0x00), 00 00 0F 00 00 00 CHG Page 0(0x00), B7 40 0F 00 00 00 DEF Page 1(0x01), C0 0B FF 00 00 00 05 00 FF FF CHG Page 1(0x01), FF FF 00 00 00 00 FF 00 FF FF DEF Page 2(0x02), 00 00 00 00 00 00 00 00 00 A1 00 00 00 00 CHG Page...
  • Page 64 9.3.2.2 ST373454SS Mode Sense data DEF Page 0(0x00), 00 00 0F 00 00 00 CHG Page 0(0x00), B7 40 0F 00 00 00 DEF Page 1(0x01), C0 0B FF 00 00 00 05 00 FF FF CHG Page 1(0x01), FF FF 00 00 00 00 FF 00 FF FF DEF Page 2(0x02), 00 00 00 00 00 00 00 00 00 A1 00 00 00 00 CHG Page...
  • Page 65 9.3.2.3 ST336754SS Mode Sense data DEF Page 0(0x00), 00 00 0F 00 00 00 CHG Page 0(0x00), B7 40 0F 00 00 00 DEF Page 1(0x01), C0 0B FF 00 00 00 05 00 FF FF CHG Page 1(0x01), FF FF 00 00 00 00 FF 00 FF FF DEF Page 2(0x02), 00 00 00 00 00 00 00 00 00 A1 00 00 00 00 CHG Page...

  • Page 66: Miscellaneous Operating Features And Conditions

    Miscellaneous operating features and conditions Table 10 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported. An “N” in the support column indicates the feature or condition is not supported. Table 10: Miscellaneous features Supported Feature or condition...

  • Page 67: Sas Physical Interface

    Figure 19 shows the location of the SAS device connector J1. Figures 20 and 21 provide the dimensions of the SAS device. Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s SAS drives are provided in the SAS Interface Manual.. SAS Interface connector Figure 19.

  • Page 68: Figure 20. Sas Connector Dimensions

    0.80 (6X) 5.92 7.62 4.65 0.52 0.08 x 45 2.00 (3X) 0.45 0.03 (7X) 5.08 0.10 M E 42.73 REF. 41.13 0.15 0.20 B 0.30 0.05 (2X) 1.10 4.00 0.08 C OF DATUM D 0.15 D R0.30 0.08 (4X) 0.30 0.05 (4X) SEE Detail1 33.43...

  • Page 69: Physical Characteristics

    Detail A 6.10 0.30 0.05 x 45 (5X) 2.25 0.05 0.40 0.05 X 45 (3X) 4.85 0.05 0.10 B CORING ALLOWED IN THIS AREA. 4.40 0.15 R0.30 0.08 SEE Detail 2 1.95 0.08 0.35 0.05 SECTION C - C 3.90 0.15 SECTION A - A CONTACT SURFACE FLUSH...

  • Page 70: Electrical Description

    9.4.4 Electrical description SAS drives use the device connector for: • DC power • SAS interface • Activity LED This connector is designed to either plug directly into a backpanel or accept cables. 9.4.5 Pin descriptions This section provides a pin-out of the SAS device and a description of the functions provided by the pins. Table 12: SAS pin descriptions Signal name...

  • Page 71: Sas Transmitters And Receivers

    9.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 22. The receiver is AC cou- pling to eliminate ground shift noise. Differential Transmitter Receiver Transfer Medium Figure 22. SAS transmitters and receivers 9.4.7 Power The drive receives power (+5 volts and +12 volts) through the SAS device connector.

  • Page 72: Differential Signals

    The Ready LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +3.3 volt supply through an appropriate current limiting resistor. The LED and the current limiting resis- tor are external to the drive. See Table 14 for the output characteristics of the LED drive signals. Table 14: LED drive signal State...

  • Page 73: Figure 23. Receive Eye Mask

    9.5.2.1.2 Receive eye mask Figure 23 describes the receive eye mask. This eye mask applies to jitter after the application of a single pole high-pass frequency-weighting function that progressively attenuates jitter at 20 dB/decade below a frequency of ((bit rate) / 1.667). Absolute amplitude (in V)

  • Page 74: Figure 25. Sinusoidal Jitter Mask

    The leading and trailing edge slopes of figure 23 shall be preserved. As a result the amplitude value of Z1 is less than that given in table 17 and Z1 and Z1 shall be defined from those slopes by the following equa- tion: –...
  • Page 75 9.5.2.2 Transmitter signal characteristics Table 16 specifies the signal requirements at the transmitter end of a TxRx connection as measured into the zero-length test load. All specifications are based on differential measurements. The OOB sequence is performed at signal voltage levels corresponding to the lowest supported transfer rate. Table 16 specifies the signal characteristics.
  • Page 76 9.5.2.3 Receiver signal characteristics Table 17 defines the compliance point requirements of the signal at the receiver end of a TxRx connection as measured into the test loads specified in figure 26 and figure 27. Table 17: Receiver signal characteristics Signal characteristic Units 1.5 Gbps...
  • Page 77 9.5.2.3.2 Receiver jitter tolerance Table 19 defines the amount of jitter the receiver shall tolerate . Table 19: Receiver jitter tolerance 1.5 Gbps 3.0 Gbps Sinusoidal Deterministic Total Sinusoidal Deterministic Total e,f,h e,g,h jitter jitter jitter jitter jitter jitter 0.10 0.35 0.65 0.10...
  • Page 78 Table 20: Impedance requirements (Sheet 2 of 2) Requirement Units 1.5 Gbps 3.0 Gbps Common mode impedance 20 min/40 max 20 min/40 max Transmitter source termination Differential impedance 60 min/115 max 60 min/115 max Differential impedance imbalance Common mode impedance 15 min/40 max 15 min/40 max a All times indicated for time domain reflectometer measurements are recorded times.
  • Page 79 A combination of a zero-length test load and the transmitter compliance transfer function (TCTF) test load methodology is used for the specification of transmitter characteristics. This methodology specifies the trans- mitter signal at the test points on the required test loads. The transmitter uses the same settings (e.g., pre- emphasis, voltage swing) with both the zero-length test load and the TCTF test load.

  • Page 80: Figure 26. Compliance Interconnect Test Load

    Figure 26 shows the compliance interconnect test load. 10 nF 50 ohm Probe TCTF points 10 nF 50 ohm SAS internal connector Figure 26. Compliance interconnect test load Figure 27 shows the zero-length test load. 50 ohm 10 nF Probe points 10 nF 50 ohm...

  • Page 81: Figure 29. Isi Loss Example At 1.5 Gbps

    Figure 29 shows an ISI loss example at 1.5 Gbps. (dB) Compliance interconnect magnitude response and ISI loss example for 1.5 Gbps ISI loss > 2.0 dB -5.4 dB Sample compliance interconnect Frequency (GHz) 0.15 0.75 Figure 29. ISI loss example at 1.5 Gbps 9.5.2.5 Receiver characteristics The drive receiver is A.C.
  • Page 82 Cheetah 15K.4 SAS Product Manual, Rev. B...

  • Page 83: Seagate Technology Support Services

    +1-405-324-4770. Seagate Service Centers Presales Support Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system, as well as drive availability and compatibility. Technical Support If you need help installing your drive, consult your system's documentation or contact the dealer's support ser- vices department for assistance specific to your system.
  • Page 84 Data Recovery Services Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser- vices labs are currently located in North America. To get a free quick quote or speak with a case management representative, call 1-800-475-0143.
  • Page 85 European support services For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe- cific location. If your location is not listed here, dial our presales and technical support call center at +1-405- 324-4714 from 8:00 .
  • Page 86 Warranty service is available from 9:00 . to 6:00 . April through October, and 10:00 . to 7:00 November through March (Australian Eastern time) Monday through Friday. Seagate Service Centers Call center Toll-free Direct dial Australia 1800-14-7201 —...
  • Page 87 We are interested in your comments and suggestions regarding this publication. Please take a few minutes to participate in our survey at the following URL: http://survey.seagate.com/survey/techpubs.nsf Thank you for your time and comments. Cheetah 15K.4 SAS Product Manual, Rev. B...
  • Page 88 Cheetah 15K.4 SAS Product Manual, Rev. B...
  • Page 89 Index capacity unformatted 11 case temperature 34 Numerics check condition status 56 chemical pollutants 37 12 volt class B limit 3 pins 61 clear ACA function 45 5 volt pins 61 clear task set function 45 commands supported 47 condensation 35 condition met/good status 56 abort task set function 45 connector...
  • Page 90 environment 42 minimum 12 environmental intermediate/condition met/good status 56 limits 34 intermediate/good status 56 requirements 17 internal data rate 11 environmental control 37 internal defects/errors 39 error internal drive characteristics 11 management 39 rates 17 jumpers 41 FCC rules and regulations 3 features 8 latency interface 45...
  • Page 91 MTBF 17 MTBF, see AFR 18 radio interference regulations 3 RCD bit 13 read error rates 17 noise read/write data heads 11 audible 3 receivers 61 noise immunity 27 recommended mounting 36 non-operating 35 Recoverable Errors 17 temperature 34 recovered media data 17 non-operating vibration 37 reference documents 5...
  • Page 92 SMP = 1 in Mode Select command 56 zone bit recording (ZBR) 8 spindle brake 8 standards 3 start/stop time 12 Sulfur 37 support services 73 surface stiffness allowable for non-flat surface 43 switches 41 synchronized spindle operation 56 system chassis 43 task management functions 45 Abort task set 45 Clear ACA 45...
  • Page 94 Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100350601, Rev. B, Printed in USA...

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