Seagate ST3600002SS инструкция обслуживания

Product Manual Cheetah ® NS 10K.2 SAS 100516228 Rev. F April 2012 ST3600002SS ST3450802SS[...]

© 2012 Seagate Technology LLC. All rights reserved. Publication number: 100516228, Rev. F, April 2012 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Cheetah and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F i Contents 1.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3.0 Sta[...]

ii Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.4.3 Effective altitude (sea level) . . . . . . . . . [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 1 1.0 Seagate Technology support services SEAGATE ONLINE SUPPORT and SERVICES For information regarding products and services, visit http://www.seagate.com/www/en-us/about/contact_us/ Available services include: Presales & Technical support Global Support Services telephone numbers & business hour[...]

2 Cheetah NS 10K.2 SAS Product Manual, Rev. F 2.0 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 100293071) describes the general SAS characteristi[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 3 3.0 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 and compliance with applicable industry and[...]

4 Cheetah NS 10K.2 SAS Product Manual, Rev. F 3.2 Compliance 3.2.1 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 sys- tem represents the most popular charac[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 5 3.3 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 Guidelines SFF-8470 Multi Lane Copper Connector SF[...]

6 Cheetah NS 10K.2 SAS Product Manual, Rev. F 4.0 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 designed to meet next-generation computing deman[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 7 4.1 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 adapters • Downloadable firmware using the S[...]

8 Cheetah NS 10K.2 SAS Product Manual, Rev. F 4.5 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 command and obtain different formatted capacities [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 9 5.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah NS SAS drives. 5.1 Internal drive characteristics ST3600002SS ST3450802SS Drive capacity 600 450 GB (formatted, rounded off value) * Read/write data heads 8 6[...]

10 Cheetah NS 10K.2 SAS Product Manual, Rev. F 5.2.2 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 Byte Transfer to the Initiator (excluding connect/d[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 11 5.4 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 operations. To select this feature, the host[...]

12 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 the cache from a previous read or write command. [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 13 6.0 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. 6.1 Error rates The error rates stated in this manual assume [...]

14 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 drive failures. 6.1.4 Interface errors An interface[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 15 6.2.4 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 to back up the data before an actual failure [...]

16 Cheetah NS 10K.2 SAS Product Manual, Rev. F the interval expires, the error rate is considered to be unacceptable. If the number of errors does not exceed the threshold before the interval expires, the error rate is considered to be acceptable. In either case, the inter- val and failure counters are reset and the process starts over. Predictive [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 17 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 fundamental tests and scans portions of the[...]

18 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 possible within 120 seconds. The short test does no[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 19 warranty information, refer to the standard terms and conditions of purchase for Seagate products on your pur- chase documentation. The remaining warranty for a particular drive can be determined using the Seagate web site: ( http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance ).[...]

20 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 7.1 AC power requirements None. 7.2 DC power requirements The voltage and current requirements for a single drive are shown below. Values indicated apply at the[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 21 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] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] ±5% ±5% [...]

22 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a defined frequency range. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector. 7.2.2 Power sequencing The drive does not require pow[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 23 Figure 1. Typical ST3600002SS drive +5V and +12V current profiles Figure 2. Typical ST3450802SS drive +5V and +12V current profiles[...]

24 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.3 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 the typical I/O rate for a drive in your system o[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 25 7.4 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 wet bulb temperature is 82°F (28°C). 7.4.1[...]

26 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.4.2 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. 7.4.3 Effective altitude (sea level) a. Operating –1,[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 27 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 (over 100 lbs/45 Kg). Package size Packaged/[...]

28 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.4.4.2 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 peak) Vibration may be applied in the X, Y, or Z[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 29 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 replacing materials near circuitry with sul[...]

30 Cheetah NS 10K.2 SAS Product Manual, Rev. F 7.5 Mechanical specifications Refer to Figure 7 for detailed physical dimensions. See Section 9.3, “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[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 31 8.0 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 error management involves drive internal defect[...]

32 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 individual LBAs. The times given do not include time tak[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 33 8.3 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 Diagnostic Results reports the results of diagnostic oper[...]

34 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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-mapped to a spare location. This is in contrast to t[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 35 9.0 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 accommodate the drive. In such systems, the host s[...]

36 Cheetah NS 10K.2 SAS Product Manual, Rev. F 9.2 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 7.4.1. In some cases, forced airflow may be required to keep temperatures at or [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 37 9.3 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). The fo[...]

38 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.0 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). 10.1 SAS features This section lists the SAS-specific features supported by Cheetah ® NS 1[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 39 10.2 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 speed negotiation sets the link rate suppo[...]

40 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.3 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 Verify 3Ah N Format Unit [1] 04h Y DPRY bit supp[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 41 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) N Temperature page (0Dh) Y Verify Error Counter page (05h) Y Write er[...]

42 Cheetah NS 10K.2 SAS Product Manual, Rev. F Reassign Blocks 07h Y Receive Diagnostic Results 1Ch Y Supported Diagnostics pages (00h) Y Translate page (40h) Y Release 17h Y Release (10) 57h Y Request Sense 03h Y Actual Retry Count bytes Y Extended Sense Y Field Pointer bytes Y Reserve 16h Y 3rd Party Reserve Y Extent Reservation N Reserve (10) 56[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 43 [1] Cheetah NS drives can format to 512, 520, 524, or 528 bytes per logical block. [2] Warning. Power loss during flash programming can result in firmware corruption. This usually makes the drive inoperable. [3] Reference Mode Sense command 1Ah for mode pages supported. [4] Y = Yes. Command is supporte[...]

44 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.3.1 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 Vendor ID 16-31 [53 54 33 36 30 30 30 30 32 53 53] [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 45 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. On standard OEM drives, the saved values are taken from the defau[...]

46 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.3.2.1 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 00 01 3A 00 00 00 00 CHG 82 0E 00 00 00 00 00 00 0[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 47 10.3.2.2 ST3450802SS 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 00 01 3A 00 00 00 00 CHG 82 0E 00 00 00 00 00 00 0[...]

48 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.4 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 supported. Table 19: Miscellaneous features Su[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 49 10.4.1 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 operational aspects of Seagate’s SAS drives are[...]

50 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 REF. C OF DATUM D L 1.10 R0.30 0.08 (4X) 2.00 (3X)[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 51 Figure 12. SAS connector dimensions 10.4.2 Physical characteristics This section defines physical interface connector. 10.4.3 Connector requirements Contact your preferred connector manufacturer for mating part information. The SAS device connector is illustrated in Figures 11 and 12. 6.10 Detail A 0.3[...]

52 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.4.4 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. 10.4.5 Pin descriptions This section provides a pin-out of the SAS device and a description of the[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 53 10.4.6 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 10.4.7 Power The drive receives power (+5 volts and +12 volts) through th[...]

54 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 23 for the output characteristics of the LED d[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 55 10.5.2.1.2 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 ((bit rate) / 1.667). Figure 14. Receive eye mask[...]

56 Cheetah NS 10K.2 SAS Product Manual, Rev. F 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 value for Z1 to be used for the tolerance masks; and [...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 57 10.5.2.2 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 performed at signal voltage levels corresponding [...]

58 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.5.2.3 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. 10.5.2.3.1 Jitter Table 27 defines the maximum allowable jitter. Table 26: Receiver si[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 59 10.5.2.3.2 Receiver jitter tolerance Table 28 defines the amount of jitter the receiver shall tolerate. 10.5.2.3.3 Compliant jitter test pattern (CJTPAT) The CJTPAT within a compliant protocol frame is used for all jitter testing unless otherwise specified. See the SAS Interface Manual for definition o[...]

60 Cheetah NS 10K.2 SAS Product Manual, Rev. F 10.5.2.4 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 optical fibers. This subclause applies on[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 61 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. The signal specifications at IR are met under each of these loading conditions. The TCTF is the mathematic[...]

62 Cheetah NS 10K.2 SAS Product Manual, Rev. F Figure 18 shows the zero-length test load. Figure 18. Zero-length test load Figure 19 shows an ISI loss example at 3.0Gb/s. Figure 19. ISI loss example at 3.0Gb/s Figure 20 shows an ISI loss example at 1.5Gb/s. Figure 20. ISI loss example at 1.5Gb/s[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 63 10.5.2.5 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 valid voltage and timing characteristics is delivere[...]

64 Cheetah NS 10K.2 SAS Product Manual, Rev. F[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 65 Index Numerics 12 volt pins 53 5 volt pins 53 6 Gbps 63 A abort task set function 38 AC coupling 53 AC power requirements 20 ACA active status 48 ACA active, faulted initiator status 48 acoustics 28 active LED Out signal 53 actuator assembly design 6 adaptive caching 48 AFR 7 air cleanliness 28 air flo[...]

66 Cheetah NS 10K.2 SAS Product Manual, Rev. F environmental limits 25 requirements 13 environmental control 28 error management 31 rates 13 errors 31 EU RoHS directive 29 F FCC rules and regulations 3 features 7 interface 38 feed forward equalizer 63 FFE 63 firmware 7 corruption 43 flawed sector reallocation 7 Format command execution time 10 func[...]

Cheetah NS 10K.2 SAS Product Manual, Rev. F 67 N noise audible 3 noise immunity 22 non-operating 26 , 28 temperature 25 non-operating vibration 28 O office environment 28 operating 26 , 27 , 28 option selection 52 out-of-plane distortion 37 P package size 27 package test specification 5 packaged 27 parameter rounding 48 PCBA 37 peak bits per inch 9[...]

68 Cheetah NS 10K.2 SAS Product Manual, Rev. F switches 35 synchronized spindle operation 48 system chassis 37 T task management functions 38 Abort task set 38 Clear ACA 38 Clear task set 38 terminate task 38 task management response codes 38 Function complete 00 38 Function not supported 05 38 Function reject 04 38 task set full status 48 temperat[...]

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