Seagate Cheetah NS SAS ST3400755SS Manual

Product ManualCheetah® NS SAS100453994Rev. BAugust 2007ST3400755SS

4Cheetah NS SAS Product Manual, Rev. B2.2 Compliance2.2.1 Electromagnetic complianceSeagate uses an independent laboratory to confirm compliance with

Cheetah NS SAS Product Manual, Rev. B52.3 Reference documentsSAS Installation Guide Seagate part number: 100453998SCSI Commands Reference Manual Seaga

6Cheetah NS SAS Product Manual, Rev. B

Cheetah NS SAS Product Manual, Rev. B73.0 General descriptionCheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI

8Cheetah NS SAS Product Manual, Rev. B3.1 Standard featuresCheetah NS SAS drives have the following standard features:• Perpendicular recording techno

Cheetah NS SAS Product Manual, Rev. B93.5 Formatted capacitiesStandard OEM models are formatted to 512 bytes per block. The block size is selectable a

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Cheetah NS SAS Product Manual, Rev. B114.0 Performance characteristicsThis section provides detailed information concerning performance-related charac

12Cheetah NS SAS Product Manual, Rev. B4.2.2 Format command execution time (minutes) Execution time measured from receipt of the last byte of the Comm

Cheetah NS SAS Product Manual, Rev. B134.4 Prefetch/multi-segmented cache controlThe drive provides a prefetch (read look-ahead) and multi-segmented c

Copyright © 2007 Seagate Technology LLC. All rights reserved. Printed in U.S.A.Publication number: 100453994, Rev. B, August 2007Seagate, Seagate Tech

14Cheetah NS SAS Product Manual, Rev. BIf read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made avail-a

Cheetah NS SAS Product Manual, Rev. B155.0 Reliability specificationsThe following reliability specifications assume correct host and drive operationa

16Cheetah NS SAS Product Manual, Rev. B5.1.3 Seek errorsA seek error is defined as a failure of the drive to position the heads to the addressed track

Cheetah NS SAS Product Manual, Rev. B175.2.4 S.M.A.R.T.S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology

18Cheetah NS SAS Product Manual, Rev. BError rate is the number of errors per operation. The algorithm that S.M.A.R.T. uses to record rates of error i

Cheetah NS SAS Product Manual, Rev. B19The most thorough option is the extended test that performs various tests on the drive and scans every logical

20Cheetah NS SAS Product Manual, Rev. BEach test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan

Cheetah NS SAS Product Manual, Rev. B21procedure. Seagate will pay for transporting the repair or replacement item to the customer. For more detailed

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Cheetah NS SAS Product Manual, Rev. B236.0 Physical/electrical specificationsThis section provides information relating to the physical and electrical

Cheetah NS SAS Product Manual, Rev. BiContents1.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24Cheetah NS SAS Product Manual, Rev. B[5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noi

Cheetah NS SAS Product Manual, Rev. B25 Figure 19. Typical ST3400755SS drive +5V and +12V current profiles6.3 Power dissipation Typical power diss

26Cheetah NS SAS Product Manual, Rev. B6.4 Environmental limitsTemperature and humidity values experienced by the drive must be such that condensation

Cheetah NS SAS Product Manual, Rev. B276.4.2 Relative humidityThe values below assume that no condensation on the drive occurs.a. Operating5% to 95% n

28Cheetah NS SAS Product Manual, Rev. Bd. PackagedDisk drives shipped as loose load (not palletized) general freight will be packaged to withstand dro

Cheetah NS SAS Product Manual, Rev. B296.4.4.2 Vibrationa. Operating—normalThe drive as installed for normal operation, shall comply with the complete

30Cheetah NS SAS Product Manual, Rev. Bexposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-

Cheetah NS SAS Product Manual, Rev. B316.5 Mechanical specificationsRefer to Figure 23 for detailed physical dimensions. See Section 8.3, “Drive mount

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Cheetah NS SAS Product Manual, Rev. B337.0 Defect and error management Seagate continues to use innovative technologies to manage defects and errors.

iiCheetah NS SAS Product Manual, Rev. B6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34Cheetah NS SAS Product Manual, Rev. BThe drive firmware error recovery algorithms consists of 11 levels for read recoveries and five levels for writ

Cheetah NS SAS Product Manual, Rev. B357.3 SAS system errorsInformation on the reporting of operational errors or faults across the interface is given

36Cheetah NS SAS Product Manual, Rev. B7.6 Deferred Auto-ReallocationDeferred Auto-Reallocation (DAR) simplifies reallocation algorithms at the system

Cheetah NS SAS Product Manual, Rev. B378.0 InstallationCheetah disk drive installation is a plug-and-play process. There are no jumpers, switches, or

38Cheetah NS SAS Product Manual, Rev. B8.2 Cooling The host enclosure must dissipate heat from the drive. You should confirm that the host enclosure i

Cheetah NS SAS Product Manual, Rev. B398.3 Drive mountingMount the drive using the bottom or side mounting holes. If you mount the drive using the bot

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Cheetah NS SAS Product Manual, Rev. B419.0 Interface requirements This section partially describes the interface requirements as implemented on Cheeta

42Cheetah NS SAS Product Manual, Rev. B9.2 Dual port supportCheetah SAS drives have two independent ports. These ports may be connected in the same or

Cheetah NS SAS Product Manual, Rev. B439.3 SCSI commands supported Table 6 lists the SCSI commands supported by Cheetah drives. Table 6: Command

Cheetah NS SAS Product Manual, Rev. B1List of FiguresFigure 1. Typical ST3400755SS drive +5V and +12V current profiles. . . . . . . . . . . . . . . .

44Cheetah NS SAS Product Manual, Rev. B Non-medium Error page (06h) Y Pages Supported list (00h) Y Read Error Counter page (03h) Y Read Reverse Er

Cheetah NS SAS Product Manual, Rev. B45Reassign Blocks 07h YReceive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h) Y Translate page (40h)

46Cheetah NS SAS Product Manual, Rev. B [1] Cheetah NS drives can format to 512, 520, 524, or 528 bytes per logical block.[2] Warning. Power loss dur

Cheetah NS SAS Product Manual, Rev. B479.3.1 Inquiry data Table 7 lists the Inquiry command data that the drive should return to the initiator per the

48Cheetah NS SAS Product Manual, Rev. BOn standard OEM drives, the saved values are taken from the default values list and stored into the saved value

Cheetah NS SAS Product Manual, Rev. B499.3.2.1 ST3400755SS Mode Sense dataMODE PAGES:DEF 80 06 00 80 0f 00 00 00 CHG 80 06 b7 c0 0f 00 00 00 DEF 8

50Cheetah NS SAS Product Manual, Rev. B9.4 Miscellaneous operating features and conditions Table 8 lists various features and conditions. A “Y” in the

Cheetah NS SAS Product Manual, Rev. B519.4.1 SAS physical interface Figure 26 shows the location of the SAS device connector J1. Figures 27 and 28 pro

52Cheetah NS SAS Product Manual, Rev. B Figure 27. SAS connector dimensionsC OF DATUM BL5.081.27 (6X)1.27 (14X)15.8750.35MIN15.87533.43 0.05B4.90

Cheetah NS SAS Product Manual, Rev. B53Figure 28. SAS connector dimensions9.4.2 Physical characteristics This section defines physical interface conn

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54Cheetah NS SAS Product Manual, Rev. B9.4.4 Electrical description SAS drives use the device connector for:• DC power• SAS interface• Activity LEDThi

Cheetah NS SAS Product Manual, Rev. B559.4.6 SAS transmitters and receiversA typical SAS differential copper transmitter and receiver pair is shown in

56Cheetah NS SAS Product Manual, Rev. BThe Ready LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +3

Cheetah NS SAS Product Manual, Rev. B579.5.2.1.2 Receive eye mask Figure 30 describes the receive eye mask. This eye mask applies to jitter after the

58Cheetah NS SAS Product Manual, Rev. BThe leading and trailing edge slopes of figure 30 shall be preserved. As a result the amplitude value of Z1 is

Cheetah NS SAS Product Manual, Rev. B599.5.2.2 Transmitter signal characteristics Table 14 specifies the signal requirements at the transmitter end of

60Cheetah NS SAS Product Manual, Rev. B9.5.2.3 Receiver signal characteristics Table 15 defines the compliance point requirements of the signal at the

Cheetah NS SAS Product Manual, Rev. B619.5.2.3.2 Receiver jitter toleranceTable 17 defines the amount of jitter the receiver shall tolerate .9.5.2.3.3

62Cheetah NS SAS Product Manual, Rev. B9.5.2.4 Electrical TxRx connectionsTxRx connections may be divided into TxRx connection segments. In a single T

Cheetah NS SAS Product Manual, Rev. B63A combination of a zero-length test load and the transmitter compliance transfer function (TCTF) test load meth

Cheetah NS SAS Product Manual, Rev. B11.0 ScopeThis manual describes Seagate Technology® LLC, Cheetah® NS SAS (Serial Attached SCSI) disk drives.Cheet

64Cheetah NS SAS Product Manual, Rev. BFigure 34 shows the zero-length test load.Figure 34. Zero-length test loadFigure 35 shows an ISI loss example

Cheetah NS SAS Product Manual, Rev. B659.5.2.5 Receiver characteristicsThe drive receiver is A.C. coupled. The receive network terminates the TxRx con

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Cheetah NS SAS Product Manual, Rev. B6710.0 Seagate Technology support servicesInternetFor information regarding Seagate products and services, visit

68Cheetah NS SAS Product Manual, Rev. BCustomer Service OperationsWarranty ServiceSeagate offers worldwide customer support for Seagate products. Seag

Cheetah NS SAS Product Manual, Rev. B69IndexNumerics12 voltpins 555 volt pins 55Aabort task set function 41AC coupling 55AC power requirements

70Cheetah NS SAS Product Manual, Rev. Benvironmental control 29errormanagement 33rates 15errors 33EU RoHS directive 30FFCC rules and regulat

Cheetah NS SAS Product Manual, Rev. B71audible 3noise immunity 24non-operating 27, 29temperature 26non-operating vibration 29Ooffice envir

72Cheetah NS SAS Product Manual, Rev. Boperation 50system chassis 39Ttask management functions 41Abort task set 41Clear ACA 41Clear task set

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Seagate Technology LLC920 Disc Drive, Scotts Valley, California 95066-4544, USAPublication Number: 100453994, Rev. B, Printed in USA

Cheetah NS SAS Product Manual, Rev. B32.0 Standards, compliance and reference documentsThe drive has been developed as a system peripheral to the high