Seagate Cheetah 15K.5 SAS ST373455SS Manuel d'utilisateur

Product ManualCheetah 15K.5 SAS100384784Rev. EAugust 2007ST3300655SSST3146855SSST373455SS

4Cheetah 15K.5 SAS Product Manual, Rev. E2.2 Compliance2.2.1 Electromagnetic complianceSeagate uses an independent laboratory to confirm compliance wi

Cheetah 15K.5 SAS Product Manual, Rev. E5Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws

6Cheetah 15K.5 SAS Product Manual, Rev. E

Cheetah 15K.5 SAS Product Manual, Rev. E73.0 General descriptionCheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SC

8Cheetah 15K.5 SAS Product Manual, Rev. E3.1 Standard featuresCheetah drives have the following standard features:• 1.5 / 3 Gbit Serial Attached SCSI

Cheetah 15K.5 SAS Product Manual, Rev. E93.4 Reliability• 1,400,000 hour MTBF (Annualized Failure Rate (AFR) of 0.62%)• Incorporates industry-standard

10Cheetah 15K.5 SAS Product Manual, Rev. E3.8 Options (factory installed)You may order the following items which are incorporated at the manufacturing

Cheetah 15K.5 SAS Product Manual, Rev. E114.0 Performance characteristicsThis section provides detailed information concerning performance-related cha

12Cheetah 15K.5 SAS Product Manual, Rev. E4.2.2 Format command execution time (minutes) Execution time measured from receipt of the last byte of the C

Cheetah 15K.5 SAS Product Manual, Rev. E13The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 30 sec-onds (

©2007, Seagate Technology LLC All rights reserved. Publication number: 100384784, Rev. E August 2007Seagate, Seagate Technology and the Wave logo are

14Cheetah 15K.5 SAS Product Manual, Rev. E4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer st

Cheetah 15K.5 SAS Product Manual, Rev. E155.0 Reliability specificationsThe following reliability specifications assume correct host and drive operati

16Cheetah 15K.5 SAS Product Manual, Rev. E5.1.3 Seek errorsA seek error is defined as a failure of the drive to position the heads to the addressed tr

Cheetah 15K.5 SAS Product Manual, Rev. E175.2.3 Hot plugging the driveWhen a disc is powered on by switching the power or hot plugged, the drive runs

18Cheetah 15K.5 SAS Product Manual, Rev. EReporting controlReporting is controlled by the MRIE bits in the Informational Exceptions Control mode page

Cheetah 15K.5 SAS Product Manual, Rev. E19be used to set this trip point. The default value for this drive is 68°C, however, you can set it to any val

20Cheetah 15K.5 SAS Product Manual, Rev. E5.2.6.2.1 State of the drive prior to testingThe drive must be in a ready state before issuing the Send Diag

Cheetah 15K.5 SAS Product Manual, Rev. E212. The Self-Test Results Value field is set to Fh3. The drive will store the log page to non-volatile memory

22Cheetah 15K.5 SAS Product Manual, Rev. E

Cheetah 15K.5 SAS Product Manual, Rev. E236.0 Physical/electrical specificationsThis section provides information relating to the physical and electri

Cheetah 15K.5 SAS Product Manual, Rev. EiContents1.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24Cheetah 15K.5 SAS Product Manual, Rev. EGen 1.5 data. 0.15A DC and 0.2A AC 12V max start current margin added.Gen 1.6 data. 0.15A DC and 0.2A AC 12V

Cheetah 15K.5 SAS Product Manual, Rev. E25Degrees C ambient.[2] For +12 V, a –10% tolerance is allowed during initial spindle start but must return to

26Cheetah 15K.5 SAS Product Manual, Rev. E Figure 2. Typical ST3300655SS drive +12V current profile Figure 3. Typical ST3300655SS drive +5V cu

Cheetah 15K.5 SAS Product Manual, Rev. E27Figure 4. Typical ST3146855SS drive +12V current profile Figure 5. Typical ST3146855SS drive +5V current

28Cheetah 15K.5 SAS Product Manual, Rev. E Figure 6. Typical ST373455SS drive +12V current profile Figure 7. Typical ST373455SS drive +5V current

Cheetah 15K.5 SAS Product Manual, Rev. E296.3 Power dissipation ST3300655SS in 3 Gbit operationTypical power dissipation under idle conditions in 3Gb

30Cheetah 15K.5 SAS Product Manual, Rev. EST3146855SS in 3 Gbit operationTypical power dissipation under idle conditions in 3Gb operation is 11.8 watt

Cheetah 15K.5 SAS Product Manual, Rev. E31ST373455SS in 3 Gbit operationTypical power dissipation under idle conditions in 3Gb operation is 10.33 watt

32Cheetah 15K.5 SAS Product Manual, Rev. E6.4 Environmental limitsTemperature and humidity values experienced by the drive must be such that condensat

Cheetah 15K.5 SAS Product Manual, Rev. E336.4.2 Relative humidityThe values below assume that no condensation on the drive occurs.a. Operating5% to 95

iiCheetah 15K.5 SAS Product Manual, Rev. E6.4 Environmental limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34Cheetah 15K.5 SAS Product Manual, Rev. Ed. PackagedDisc drives shipped as loose load (not palletized) general freight will be packaged to withstand

Cheetah 15K.5 SAS Product Manual, Rev. E356.4.4.2 Vibrationa. Operating—normalThe drive as installed for normal operation, shall comply with the compl

36Cheetah 15K.5 SAS Product Manual, Rev. E6.4.7 AcousticsSound power during idle mode shall be 3.7 bels typical when measured to ISO 7779 specificatio

Cheetah 15K.5 SAS Product Manual, Rev. E377.0 Defect and error management Seagate continues to use innovative technologies to manage defects and error

38Cheetah 15K.5 SAS Product Manual, Rev. EThe drive firmware error recovery algorithms consists of 11 levels for read recoveries and five levels for w

Cheetah 15K.5 SAS Product Manual, Rev. E397.3 SAS system errorsInformation on the reporting of operational errors or faults across the interface is gi

40Cheetah 15K.5 SAS Product Manual, Rev. E7.6 Deferred Auto-ReallocationDeferred Auto-Reallocation (DAR) simplifies reallocation algorithms at the sys

Cheetah 15K.5 SAS Product Manual, Rev. E418.0 InstallationCheetah disc drive installation is a plug-and-play process. There are no jumpers, switches,

42Cheetah 15K.5 SAS Product Manual, Rev. E8.2 Cooling Cabinet cooling must be designed by the customer so that the ambient temperature immediately sur

Cheetah 15K.5 SAS Product Manual, Rev. E438.3 Drive mountingMount the drive using the bottom or side mounting holes. If you mount the drive using the

Cheetah 15K.5 SAS Product Manual, Rev. E1List of FiguresFigure 1. Cheetah 15K.5 SAS disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44Cheetah 15K.5 SAS Product Manual, Rev. E

Cheetah 15K.5 SAS Product Manual, Rev. E459.0 Interface requirements This section partially describes the interface requirements as implemented on Che

46Cheetah 15K.5 SAS Product Manual, Rev. E9.2 Dual port supportCheetah SAS drives have two independent ports. These ports may be connected in the same

Cheetah 15K.5 SAS Product Manual, Rev. E479.3 SCSI commands supported Table 8 lists the SCSI commands supported by Cheetah drives. Table 8: Comm

48Cheetah 15K.5 SAS Product Manual, Rev. E Non-medium Error page (06h) Y Pages Supported list (00h) Y Read Error Counter page (03h) Y Read Reverse

Cheetah 15K.5 SAS Product Manual, Rev. E49Reassign Blocks 07h YReceive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h) Y Translate page (4

50Cheetah 15K.5 SAS Product Manual, Rev. E [1] Cheetah drives can format to 512, 520, 524, or 528 bytes per logical block.[2] Warning. Power loss dur

Cheetah 15K.5 SAS Product Manual, Rev. E519.3.1 Inquiry data Table 9 lists the Inquiry command data that the drive should return to the initiator per

52Cheetah 15K.5 SAS Product Manual, Rev. ESelect command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “C

Cheetah 15K.5 SAS Product Manual, Rev. E539.3.2.1 ST3300655SS Mode Sense dataMODE DATA HEADER:03 fa 00 10 00 00 00 08BLOCK DESCRIPTOR:22 ec b2 5c 00 0

2Cheetah 15K.5 SAS Product Manual, Rev. E

54Cheetah 15K.5 SAS Product Manual, Rev. E9.3.2.2 ST3146855SS Mode Sense dataMODE DATA HEADER:03 fa 00 10 00 00 00 08BLOCK DESCRIPTOR:11 17 73 30 00 0

Cheetah 15K.5 SAS Product Manual, Rev. E559.3.2.3 ST373455SS Mode Sense dataMODE DATA HEADER:03 fa 00 10 00 00 00 08BLOCK DESCRIPTOR:08 8b b9 98 00 00

56Cheetah 15K.5 SAS Product Manual, Rev. E9.4 Miscellaneous operating features and conditions Table 10 lists various features and conditions. A “Y” in

Cheetah 15K.5 SAS Product Manual, Rev. E579.4.1 SAS physical interface Figure 16 shows the location of the SAS device connector J1. Figures 17 and 18

58Cheetah 15K.5 SAS Product Manual, Rev. E Figure 17. SAS connector dimensionsC OF DATUM BL5.081.27 (6X)1.27 (14X)15.8750.35MIN15.87533.43 0.05B4.9

Cheetah 15K.5 SAS Product Manual, Rev. E59Figure 18. SAS connector dimensions9.4.2 Physical characteristics This section defines physical interface c

60Cheetah 15K.5 SAS Product Manual, Rev. E9.4.4 Electrical description SAS drives use the device connector for:• DC power• SAS interface• Activity LED

Cheetah 15K.5 SAS Product Manual, Rev. E619.4.6 SAS transmitters and receiversA typical SAS differential copper transmitter and receiver pair is shown

62Cheetah 15K.5 SAS Product Manual, Rev. EThe Ready LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper

Cheetah 15K.5 SAS Product Manual, Rev. E639.5.2.1.2 Receive eye mask Figure 20 describes the receive eye mask. This eye mask applies to jitter after t

Cheetah 15K.5 SAS Product Manual, Rev. E11.0 ScopeThis manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disc drives.Cheet

64Cheetah 15K.5 SAS Product Manual, Rev. EThe leading and trailing edge slopes of figure 20 shall be preserved. As a result the amplitude value of Z1

Cheetah 15K.5 SAS Product Manual, Rev. E659.5.2.2 Transmitter signal characteristics Table 16 specifies the signal requirements at the transmitter end

66Cheetah 15K.5 SAS Product Manual, Rev. E9.5.2.3 Receiver signal characteristics Table 17 defines the compliance point requirements of the signal at

Cheetah 15K.5 SAS Product Manual, Rev. E679.5.2.3.2 Receiver jitter toleranceTable 19 defines the amount of jitter the receiver shall tolerate .9.5.2.

68Cheetah 15K.5 SAS Product Manual, Rev. E9.5.2.4 Electrical TxRx connectionsTxRx connections may be divided into TxRx connection segments. In a singl

Cheetah 15K.5 SAS Product Manual, Rev. E69A combination of a zero-length test load and the transmitter compliance transfer function (TCTF) test load m

70Cheetah 15K.5 SAS Product Manual, Rev. EFigure 24 shows the zero-length test load.Figure 24. Zero-length test loadFigure 25 shows an ISI loss examp

Cheetah 15K.5 SAS Product Manual, Rev. E719.5.2.5 Receiver characteristicsThe drive receiver is A.C. coupled. The receive network terminates the TxRx

72Cheetah 15K.5 SAS Product Manual, Rev. E

Cheetah 15K.5 SAS Product Manual, Rev. E7310.0 Seagate Technology support servicesInternetFor information regarding Seagate products and services, vis

2Cheetah 15K.5 SAS Product Manual, Rev. E

74Cheetah 15K.5 SAS Product Manual, Rev. ECustomer Service OperationsWarranty ServiceSeagate offers worldwide customer support for Seagate products. S

Cheetah 15K.5 SAS Product Manual, Rev. E77IndexNumerics12 voltpins 615 volt pins 61Aabort task set function 45AC coupling 61AC power requireme

78Cheetah 15K.5 SAS Product Manual, Rev. Eenvironment 42environmentallimits 32requirements 15environmental control 35errormanagement 37rates

Cheetah 15K.5 SAS Product Manual, Rev. E79Nnoiseaudible 3noise immunity 25non-operating 33, 35temperature 32non-operating vibration 35Ooff

80Cheetah 15K.5 SAS Product Manual, Rev. Esurface stiffnessallowable for non-flat surface 43switches 41synchronized spindleoperation 56system ch

Seagate Technology LLC920 Disc Drive, Scotts Valley, California 95066-4544, USAPublication Number: 100384784, Rev. E, Printed in USA

Cheetah 15K.5 SAS Product Manual, Rev. E32.0 Standards, compliance and reference documentsThe drive has been developed as a system peripheral to the h