SEAGATE ST3400755SS - Manuals

Cheetah NS SAS Product Manual, Rev. B 1 1.0 Scope This manual describes Seagate Technology ® LLC, Cheetah ® NS SAS (Serial Attached SCSI) disk drives. Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Inter-face Manual (part number 100293071) desc...

Cheetah NS SAS Product Manual, Rev. B 3 2.0 Standards, compliance and reference documents The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends on its host equipment to provide adequate power and environment for optimum performance...

4 Cheetah NS SAS Product Manual, Rev. B 2.2 Compliance 2.2.1 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected...

Cheetah NS SAS Product Manual, Rev. B 5 2.3 Reference documents SAS Installation Guide Seagate part number: 100453998 SCSI Commands Reference Manual Seagate part number: 100293068 SAS Interface Manual Seagate part number: 100293071 Applicable ANSI SAS documents SFF-8323 3.5” Drive Form Factor with S...

Cheetah NS SAS Product Manual, Rev. B 7 3.0 General description Cheetah drives combine Tunneling Magnetoresistive (TMR) heads and a Serial Attached SCSI (SAS) interface to provide high performance, high capacity data storage for a variety of systems including engineering worksta-tions, network serve...

8 Cheetah NS SAS Product Manual, Rev. B 3.1 Standard features Cheetah NS SAS drives have the following standard features: • Perpendicular recording technology• 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller• Support for SAS expanders and fanout adapters• Down...

Cheetah NS SAS Product Manual, Rev. B 9 3.5 Formatted capacities Standard OEM models are formatted to 512 bytes per block. The block size is selectable at format time and must be a multiple of 4 bytes. Users having the necessary equipment may modify the data block size before issuing a format comman...

Cheetah NS SAS Product Manual, Rev. B 11 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah NS SAS drives. 4.1 Internal drive characteristics ST3400755SS Drive capacity 400.0 Gbytes (formatted, rounded off...

12 Cheetah NS SAS Product Manual, Rev. B 4.2.2 Format command execution time (minutes) Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect). 4.2.3 General performance char...

Cheetah NS SAS Product Manual, Rev. B 13 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache ...

14 Cheetah NS SAS Product Manual, Rev. B If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made avail-able for future read cache hits. The same buffer space and segmentation is used as set up for read functions. The buffer segmentation scheme is set u...

Cheetah NS SAS Product Manual, Rev. B 15 5.0 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. 5.1 Error rates Th...

16 Cheetah NS SAS Product Manual, Rev. B 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 po...

Cheetah NS SAS Product Manual, Rev. B 17 5.2.4 S.M.A.R.T. S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a failure to allow you t...

Cheetah NS SAS Product Manual, Rev. B 19 The most thorough option is the extended test that performs various tests on the drive and scans every logical block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the entire media surface, but does some f...

20 Cheetah NS SAS Product Manual, Rev. B Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan segment. Short test (Function Code: 001b) The purpose of the short test is to provide a time-limited test that tests as much of the drive as possibl...

Cheetah NS SAS Product Manual, Rev. B 23 6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive ar...

24 Cheetah NS SAS Product Manual, Rev. B [5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. [6] During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters t...

Cheetah NS SAS Product Manual, Rev. B 25 Figure 19. Typical ST3400755SS drive +5V and +12V current profiles 6.3 Power dissipation Typical power dissipation under idle conditions in 3Gb operation is 8.19 watts (27.95 BTUs per hour). To obtain operating power for typical random read operations, refer ...

26 Cheetah NS SAS Product Manual, Rev. B 6.4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum we...

Cheetah NS SAS Product Manual, Rev. B 27 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 Effec...

28 Cheetah NS SAS Product Manual, Rev. B d. Packaged Disk drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from heights as defined in the table below. For additional details refer to Seagate specifications 30190-001 (under 100 lbs/45 kg) or 30191-001 ...

Cheetah NS SAS Product Manual, Rev. B 29 6.4.4.2 Vibration a. Operating—normal The drive as installed for normal operation, shall comply with the complete specified performance while subjected to continuous vibration not exceeding 5 - 500 Hz @ 0.5 G (0 to peak, swept sine, 1.0 octive/min) Vibration ...

30 Cheetah NS SAS Product Manual, Rev. B exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment may be extended by ...

Cheetah NS SAS Product Manual, Rev. B 31 6.5 Mechanical specifications Refer to Figure 23 for detailed physical dimensions. See Section 8.3, “Drive mounting.” Figure 23. Physical dimensions Height: 1.028 in 26.11 mm Width: 4.010 in 101.85 mm Depth: 5.787 in 146.99 mm Weight: 1.76 pounds 0.800 kilogr...

Cheetah NS SAS Product Manual, Rev. B 33 7.0 Defect and error management Seagate continues to use innovative technologies to manage defects and errors. These technologies are designed to increase data integrity, perform drive self-maintenance, and validate proper drive operation. SCSI defect and err...

34 Cheetah NS SAS Product Manual, Rev. B The drive firmware error recovery algorithms consists of 11 levels for read recoveries and five levels for write. Each level may consist of multiple steps, where a step is defined as a recovery function involving a single re-read or re-write attempt. The maxi...

Cheetah NS SAS Product Manual, Rev. B 37 8.0 Installation Cheetah disk 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 accomm...

38 Cheetah NS SAS Product Manual, Rev. B 8.2 Cooling The host enclosure must dissipate heat from the drive. You should confirm that the host enclosure is designed to ensure that the drive operates within the temperature measurement guidelines described in Section 6.4.1. In some cases, forced airflow...

Cheetah NS SAS Product Manual, Rev. B 41 9.0 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). 9.1 SAS features This section lists the SAS-speci...

42 Cheetah NS SAS Product Manual, Rev. B 9.2 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...

Cheetah NS SAS Product Manual, Rev. B 43 9.3 SCSI commands supported Table 6 lists the SCSI commands supported by Cheetah drives. Table 6: Commands supported by Cheetah NS SAS family drives Command name Command code Supported Change Definition 40h N Compare 39h N Copy 18h N Copy and Verify 3Ah N For...

44 Cheetah 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 Error Counter page (04h) N Self-test Results page (10h) Y Background Medium Scan page (15h) Y Start-stop Cycle Counter page (0Eh) Y Temperature page (0Dh) ...

Cheetah NS SAS Product Manual, Rev. B 47 9.3.1 Inquiry data Table 7 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual. Table 7: Cheetah NS SAS inquiry data * Copyright year (changes with actual year). ** SCSI Revision suppor...

Cheetah NS SAS Product Manual, Rev. B 49 9.3.2.1 ST3400755SS Mode Sense data MODE PAGES: DEF 80 06 00 80 0f 00 00 00 CHG 80 06 b7 c0 0f 00 00 00 DEF 81 0a c0 0b ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff DEF 82 0e 00 00 00 00 00 00 00 00 01 3a 00 00 00 00 CHG 82 0e 00 00 00 00 0...

50 Cheetah NS SAS Product Manual, Rev. B 9.4 Miscellaneous operating features and conditions Table 8 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. T...

Cheetah NS SAS Product Manual, Rev. B 51 9.4.1 SAS physical interface Figure 26 shows the location of the SAS device connector J1. Figures 27 and 28 provide the dimensions of the SAS device. Details of the physical, electrical, and logical characteristics are provided within this section. The operat...

52 Cheetah NS SAS Product Manual, Rev. B Figure 27. SAS connector dimensions C OF DATUM B L 5.08 1.27 (6X) 1.27 (14X) 15.875 0.35MIN 15.875 33.43 0.05 B 4.90 0.08 0.84 0.05 (22X) 0.15 B P15 P1 S7 S1 SEE Detail1 0.30 0.05 (4X) 4.00 0.08 0.15 D 0.30 0.05 (2X) 41.13 0.15 B B C C A A 0.20 B 42.73 REF. C...

Cheetah NS SAS Product Manual, Rev. B 53 Figure 28. SAS connector dimensions 9.4.2 Physical characteristics This section defines physical interface connector. 9.4.3 Connector requirements Contact your preferred connector manufacturer for mating part information. The SAS device connector is illustrat...

54 Cheetah NS SAS Product Manual, Rev. B 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 S...

Cheetah NS SAS Product Manual, Rev. B 55 9.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 29. The receiver is AC cou-pling to eliminate ground shift noise. Figure 29. SAS transmitters and receivers 9.4.7 Power The drive receives ...

56 Cheetah NS SAS Product Manual, Rev. B 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 12 ...

Cheetah NS SAS Product Manual, Rev. B 57 9.5.2.1.2 Receive eye mask Figure 30 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 ...

58 Cheetah NS SAS Product Manual, Rev. B The leading and trailing edge slopes of figure 30 shall be preserved. As a result the amplitude value of Z1 is less than that given in table 15 and Z1 TOL and Z1 OP shall be defined from those slopes by the following equa- tion: where: Z1 TOL is the value for...

Cheetah NS SAS Product Manual, Rev. B 59 9.5.2.2 Transmitter signal characteristics Table 14 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 perfor...

60 Cheetah NS SAS Product Manual, Rev. B 9.5.2.3 Receiver signal characteristics Table 15 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 33 and figure 34. 9.5.2.3.1 Jitter Table 16 defines the maxim...

Cheetah NS SAS Product Manual, Rev. B 61 9.5.2.3.2 Receiver jitter tolerance Table 17 defines the amount of jitter the receiver shall tolerate . 9.5.2.3.3 Compliant jitter test pattern (CJTPAT) The CJTPAT within a compliant protocol frame is used for all jitter testing unless otherwise specified. Se...

62 Cheetah NS SAS Product Manual, Rev. B 9.5.2.4 Electrical TxRx connections TxRx connections may be divided into TxRx connection segments. In a single TxRx connection individual TxRx connection segments may be formed from differing media and materials, including traces on printed wir-ing boards and...

Cheetah NS SAS Product Manual, Rev. B 63 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 r...

64 Cheetah NS SAS Product Manual, Rev. B Figure 34 shows the zero-length test load. Figure 34. Zero-length test load Figure 35 shows an ISI loss example at 3.0 Gbps. Figure 35. ISI loss example at 3.0 Gbps Figure 36 shows an ISI loss example at 1.5 Gbps. Figure 36. ISI loss example at 1.5 Gbps Tx+ T...

Cheetah NS SAS Product Manual, Rev. B 65 9.5.2.5 Receiver characteristics The drive receiver is A.C. coupled. The receive network terminates the TxRx connection by a 100 ohm equiva-lent impedance as specified in table 18. The receiver operates within a BER of 10 -12 when a SAS signal with valid volt...

Cheetah NS SAS Product Manual, Rev. B 67 10.0 Seagate Technology support services Internet For information regarding Seagate products and services, visit www.seagate.com . Worldwide support is available 24 hours daily by email for your questions. Presales Support: [email protected] Technical Supp...

68 Cheetah NS SAS Product Manual, Rev. B Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-relat...

Cheetah NS SAS Product Manual, Rev. B 69 Index Numerics 12 volt pins 55 5 volt pins 55 A abort task set function 41 AC coupling 55 AC power requirements 23 ACA active status 50 ACA active, faulted initiator status 50 acoustics 29 active LED Out signal 55 actuator assembly design 7 adaptive caching 5...

72 Cheetah NS SAS Product Manual, Rev. B operation 50 system chassis 39 T task management functions 41 Abort task set 41 Clear ACA 41 Clear task set 41 terminate task 41 task management response codes 41 Function complete 00 41 Function not supported 05 41 Function reject 04 41 task set full status ...