Page 2 - trademarks
Copyright © 2009 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100516228, Rev. C, November 2009 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Cheetah, SeaTools and Se...
Page 3 - Contents
Cheetah NS 10K.2 SAS Product Manual, Rev. C i Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Standards, compliance and reference documents . . . . . . . . . . . . . . . . . . . ....
Page 4 - ii
ii Cheetah NS 10K.2 SAS Product Manual, Rev. C 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 6.4.4 Shoc...
Page 5 - Scope; This manual describes Seagate Technology
Cheetah NS 10K.2 SAS Product Manual, Rev. C 1 1.0 Scope This manual describes Seagate Technology ® LLC, Cheetah ® NS 10K.2 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 10...
Page 6 - Standards, compliance and reference documents; Standards; SAS Interface Manual; Electromagnetic compatibility
2 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 perfo...
Page 7 - Compliance; Electromagnetic compliance
Cheetah NS 10K.2 SAS Product Manual, Rev. C 3 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 se...
Page 8 - Reference documents
4 Cheetah NS 10K.2 SAS Product Manual, Rev. C 2.3 Reference documents 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 Serial Connector SFF-8460 HSS Backplane Design Gu...
Page 9 - General description; Cheetah
Cheetah NS 10K.2 SAS Product Manual, Rev. C 5 3.0 General description Cheetah ® NS 10K.2 SAS drives provide high performance, high capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. The Serial Attached SCSI interface is...
Page 10 - Standard features; Cheetah NS SAS drives have the following standard features:; Media description
6 Cheetah NS 10K.2 SAS Product Manual, Rev. C 3.1 Standard features Cheetah NS SAS drives have the following standard features: • Perpendicular recording technology• 1.5 / 3 / 6 Gb Serial Attached SCSI (SAS) interface• Integrated dual port SAS controller• Support for SAS expanders and fanout adapter...
Page 11 - Formatted capacities; Sector Size; Programmable drive capacity; Factory-installed options; • The
Cheetah NS 10K.2 SAS Product Manual, Rev. C 7 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 ...
Page 12 - Performance characteristics; Internal drive characteristics; Access time; Not Including controller overhead
8 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 ST3600002SS ST3450802SS Drive capacity 600 450 GB (formatt...
Page 13 - General performance characteristics; There is no power control switch on the drive.
Cheetah NS 10K.2 SAS Product Manual, Rev. C 9 4.2.2 Format command execution time (minutes) ST3600002SS ST3450802SS Maximum (with verify) 182 129 Maximum (without verify) 101 68 Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status By...
Page 14 - Cache operation; Refer to the; Case A; Drive transfers the requested logical blocks to the initiator.; Case B
10 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 ...
Page 15 - Prefetch operation
Cheetah NS 10K.2 SAS Product Manual, Rev. C 11 The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that are to be written are already stored in...
Page 16 - Reliability specifications; Error rates; Recoverable Errors
12 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 ra...
Page 17 - seeks. Unrecoverable seek errors; Interface errors; Reliability and service; Preventive maintenance; No routine scheduled preventive maintenance is required.; Hot plugging the drive
Cheetah NS 10K.2 SAS Product Manual, Rev. C 13 a seek positioning error (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense Key. Recoverable seek errors are specified at Less than 10 errors in 10 8 seeks. Unrecoverable seek errors (Sense Key = 04h) are classified as d...
Page 20 - DST failure definition; Recovered errors will not be reported as diagnostic failures.; Implementation; DST has two testing options:
16 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 ...
Page 21 - Log page entries; The Self-Test Results Value field is set to Fh; Abort
Cheetah NS 10K.2 SAS Product Manual, Rev. C 17 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 p...
Page 23 - Physical/electrical specifications; AC power requirements; DC power requirements; Notes
Cheetah NS 10K.2 SAS Product Manual, Rev. C 19 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 dr...
Page 24 - The +5V and +12V supplies should employ separate ground returns.
20 Cheetah NS 10K.2 SAS Product Manual, Rev. C transient response. [6] During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track. Table 13: ST3450802SS DC power requirements Voltage +5V +12V [2] +5V +12V [2] +5V +12V [2] Reg...
Page 25 - The +12V and +5V current profiles are shown below in figure 1.
Cheetah NS 10K.2 SAS Product Manual, Rev. C 21 6.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. 6.2....
Page 27 - Power dissipation; Random 8 Block Reads
Cheetah NS 10K.2 SAS Product Manual, Rev. C 23 6.3 Power dissipation ST3600002SS Typical power dissipation under idle conditions in 6Gb operation is 10.03W (34.23 BTUs per hour) To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 3). Locate...
Page 28 - Environmental limits; Temperature; Location of the HDA temperature check point
24 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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). Maxi...
Page 29 - shall not exhibit device
Cheetah NS 10K.2 SAS Product Manual, Rev. C 25 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...
Page 31 - Vibration; b. Operating—abnormal; Acoustics
Cheetah NS 10K.2 SAS Product Manual, Rev. C 27 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 10 - 300 Hz 1.0 G RMS (0 to peak) 301 - 500 Hz 0.5 G RMS (0 to ...
Page 33 - Mechanical specifications; Physical dimensions
Cheetah NS 10K.2 SAS Product Manual, Rev. C 29 6.5 Mechanical specifications Refer to Figure 7 for detailed physical dimensions. See Section 8.3, “Drive mounting.” Figure 7. Physical dimensions Height: 1.013 in 25.73 mm Width: 3.999 in 101.57 mm Depth: 5.769 in 146.53 mm Weight: 1.482 lb 0.672 kg
Page 34 - Defect and error management; Drive internal defects/errors; Drive error recovery procedures
30 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 a...
Page 35 - These values are subject to change.; Read and write retry count maximum recovery times
Cheetah NS 10K.2 SAS Product Manual, Rev. C 31 read or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and write retry counts. Table 14 equates the read and write retry count with the maximum possible recovery time for read and write recovery of indivi...
Page 36 - SAS system errors; SAS Interface; Background Media Scan
32 Cheetah NS 10K.2 SAS Product Manual, Rev. C 7.3 SAS system errors Information on the reporting of operational errors or faults across the interface is given in the SAS Interface Manual . The SSP Response returns information to the host about numerous kinds of errors or faults. The Receive Diagnos...
Page 37 - Idle Read After Write
Cheetah NS 10K.2 SAS Product Manual, Rev. C 33 ations performed by the drive. When a write command is received for an LBA marked for DAR, the auto-reallo-cation process is invoked and attempts to rewrite the data to the original location. If a verification of this rewrite fails, the sector is re-map...
Page 38 - Installation; Power is supplied through the SAS connector.; Drive orientation
34 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 ...
Page 39 - Cooling; Air flow
Cheetah NS 10K.2 SAS Product Manual, Rev. C 35 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 a...
Page 41 - Interface requirements; SAS features; task management functions; Table 15 lists the SAS task management functions supported.; task management responses; Task name; Task management response codes; Function name
Cheetah NS 10K.2 SAS Product Manual, Rev. C 37 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...
Page 42 - Dual port support; Subject to buffer availability, the Cheetah drives support:
38 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 co...
Page 43 - SCSI commands supported; Commands supported by Cheetah; Command name
Cheetah NS 10K.2 SAS Product Manual, Rev. C 39 9.3 SCSI commands supported Table 17 lists the SCSI commands supported by Cheetah drives. Table 17: Commands supported by Cheetah ® NS 10K.2 SAS family drives Command name Command code Supported Change Definition 40h N Compare 39h N Copy 18h N Copy and ...
Page 47 - Inquiry data; Bytes; PP; Default values
Cheetah NS 10K.2 SAS Product Manual, Rev. C 43 9.3.1 Inquiry data Table 18 lists the Inquiry command data that the drive should return to the initiator per the format given in the SAS Interface Manual . Table 18: Inquiry data Bytes Data (hex) 0-15 00 00 xx** 12 8B 00 10 0A 53 45 41 47 41 54 45 20 Ve...
Page 49 - CHG 9C 0A 9D 0F FF FF FF FF FF FF FF FF
Cheetah NS 10K.2 SAS Product Manual, Rev. C 45 9.3.2.1 ST3600002SS Mode Sense data HEADER DATA: 00 00 05 12 8B 00 10 02 MODE PAGES: DEF 80 06 00 80 0F 00 00 00 CHG 80 06 B7 C0 8F 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 0...
Page 51 - Miscellaneous operating features and conditions; Miscellaneous features; Miscellaneous status; Supported
Cheetah NS 10K.2 SAS Product Manual, Rev. C 47 9.4 Miscellaneous operating features and conditions Table 19 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 suppo...
Page 52 - SAS physical interface
48 Cheetah NS 10K.2 SAS Product Manual, Rev. C 9.4.1 SAS physical interface Figure 10 shows the location of the SAS device connector J1. Figures 11 and 12 provide the dimensions of the SAS device. Details of the physical, electrical, and logical characteristics are provided within this section. The ...
Page 53 - SAS connector dimensions; C OF DATUM B
Cheetah NS 10K.2 SAS Product Manual, Rev. C 49 Figure 11. 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 ...
Page 54 - Physical characteristics; This section defines physical interface connector.; Connector requirements; The SAS device connector is illustrated in Figures 11 and 12.
50 Cheetah NS 10K.2 SAS Product Manual, Rev. C Figure 12. 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 ill...
Page 55 - Electrical description; SAS drives use the device connector for:; Pin descriptions
Cheetah NS 10K.2 SAS Product Manual, Rev. C 51 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...
Page 56 - SAS transmitters and receivers; Power; Signal characteristics; Ready LED Out; Normal command activity
52 Cheetah NS 10K.2 SAS Product Manual, Rev. C 9.4.6 SAS transmitters and receivers A typical SAS differential copper transmitter and receiver pair is shown in Figure 13. The receiver is AC cou-pling to eliminate ground shift noise. Figure 13. SAS transmitters and receivers 9.4.7 Power The drive rec...
Page 57 - State; VOH; LED o; General interface characteristics; Characteristic
Cheetah NS 10K.2 SAS Product Manual, Rev. C 53 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 Tab...
Page 58 - Receive eye mask; Jitter tolerance masks; is half the value for total jitter intable 27 and X1; is half the value for total jitter in table 28, for
54 Cheetah NS 10K.2 SAS Product Manual, Rev. C 9.5.2.1.2 Receive eye mask Figure 14 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 ...
Page 59 - additional sinusoidal jitter
Cheetah NS 10K.2 SAS Product Manual, Rev. C 55 The leading and trailing edge slopes of figure 14 shall be preserved. As a result the amplitude value of Z1 is less than that given in table 26 and Z1 TOL and Z1 OP shall be defined from those slopes by the following equa- tion: where: Z1 TOL is the val...
Page 60 - Signal characteristic; idle times of an OOB signal.
56 Cheetah NS 10K.2 SAS Product Manual, Rev. C 9.5.2.2 Transmitter signal characteristics Table 25 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 ...
Page 61 - b The value for X1 applies at a total jitter probability of 10; Maximum allowable jitter; d Total jitter is specified at a probability of 10
Cheetah NS 10K.2 SAS Product Manual, Rev. C 57 9.5.2.3 Receiver signal characteristics Table 26 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 17 and figure 18. 9.5.2.3.1 Jitter Table 27 defines the...
Page 62 - receivers shall be able to tolerate without exceeding a BER of 10
58 Cheetah NS 10K.2 SAS Product Manual, Rev. C 9.5.2.3.2 Receiver jitter tolerance Table 28 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 specifie...
Page 63 - transit time of the time domain reflectometer signal.; Requirement; receiver termination time constant
Cheetah NS 10K.2 SAS Product Manual, Rev. C 59 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 boar...
Page 66 - Receiver characteristics; The receiver operates within a BER of 10; over frequency; SAS-2 Specification compliance
62 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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 29. The receiver operates within a BER of 10 -12 when a SAS signal with vali...
Page 67 - Seagate Technology support services; Internet; For information regarding Seagate products and services, visit; mySeagate; Global Customer Support; Presales Support
Cheetah NS 10K.2 SAS Product Manual, Rev. C 63 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] Technica...
Page 68 - Customer Service Operations; Warranty Service; for the service center near you.; USA/Canada/Latin America support services; Direct dial; and Mexico; Europe, the Middle East and Africa Support Services
64 Cheetah NS 10K.2 SAS Product Manual, Rev. C 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...
Page 69 - Index; Numerics
Cheetah NS 10K.2 SAS Product Manual, Rev. C 65 Index Numerics 12 volt pins 52 5 volt pins 52 6 Gbps 62 A abort task set function 37 AC coupling 52 AC power requirements 19 ACA active status 47 ACA active, faulted initiator status 47 acoustics 27 active LED Out signal 52 actuator assembly design 5 ad...
Page 70 - See
66 Cheetah NS 10K.2 SAS Product Manual, Rev. C environmental limits 24 requirements 12 environmental control 27 error management 30 rates 12 errors 30 EU RoHS directive 28 F FCC rules and regulations 2 features 6 interface 37 feed forward equalizer 62 FFE 62 firmware 6 corruption 42 flawed sector re...
Page 72 - See also
68 Cheetah NS 10K.2 SAS Product Manual, Rev. C allowable for non-flat surface 36 switches 34 synchronized spindle operation 47 system chassis 36 T task management functions 37 Abort task set 37 Clear ACA 37 Clear task set 37 terminate task 37 task management response codes 37 Function complete 00 37...
