SEAGATE ST3146954FC - Manuals

ii Cheetah 15K.4 FC Product Manual, Rev. B 6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 6.4.3 Eff...

Cheetah 15K.4 FC Product Manual, Rev. B iii 9.6.1 TTL input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 9.6.2 LED driver signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 9.6.3 FC Differ...

Cheetah 15K.4 FC Product Manual, Rev. B v List of Figures Figure 1. Cheetah 15K.4 FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Typical ST3146954FC drive, 2 Gbit, +12V current profile . . . . . . . . . . . . . . . . . . . ....

Cheetah 15K.4 FC Product Manual, Rev. B 1 1.0 Scope This manual describes Seagate Technology ® LLC, Cheetah ® 15K.4 FC (Fibre Channel) disc drives. Cheetah 15K.4 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifi-cations to the extent described in this manual...

Cheetah 15K.4 FC Product Manual, Rev. B 3 2.0 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends upon its host equipment to provide adequate power and environment in order to achi...

Cheetah 15K.4 FC Product Manual, Rev. B 5 2.2 Reference documents Cheetah 15K.4 FC Installation Guide Seagate part number: 100366897 Fibre Channel Interface Manual Seagate part number: 77767496 ANSI Fibre Channel Documents Project T11/1619-D FC-FS-2 Fibre Channel - Framing and Signaling Project T11/...

Cheetah 15K.4 FC Product Manual, Rev. B 7 3.0 General description Cheetah 15K.4 FC drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high performance, high capaci...

8 Cheetah 15K.4 FC Product Manual, Rev. B 3.1 Standard features Cheetah 15K.4 FC drives have the following standard features:• 4-Gbit Fibre Channel interface. For 2 or 4 gigabit operation, the block size must be divisable by 8.• Integrated dual port FC-AL controller• Concurrent dual port transfers• ...

Cheetah 15K.4 FC Product Manual, Rev. B 9 3.3 Performance • Programmable multi-segmentable cache buffer • 200 Mbytes/sec maximum instantaneous data transfers per port• 15k RPM spindle; average latency = 2.0 msec• Command queuing of up to 128 commands • Background processing of queue• Supports start ...

10 Cheetah 15K.4 FC Product Manual, Rev. B change the capacity it is currently formatted to have. A number in the number of blocks field that is less than the maximum number of LBAs changes the total drive capacity to the value in the block descriptor number of blocks field. A value greater than the...

Cheetah 15K.4 FC Product Manual, Rev. B 11 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.4 FC drives. 4.1 Internal drive characteristics ST3146954FC ST373554FC ST336854FC Drive capacity 146.8 73.4...

12 Cheetah 15K.4 FC Product Manual, Rev. B 4.2.2 Format command execution time (minutes) 4.2.3 General performance characteristics 4.3 Start/stop time If the Motor Start option is disabled, the drive becomes ready within 20 seconds after DC power is applied. If a recoverable error condition is detec...

Cheetah 15K.4 FC Product Manual, Rev. B 13 the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint that each is enabled and disabled independently using the Mode Select command; however, in actual opera-tion, the prefetch feature overlaps cache op...

14 Cheetah 15K.4 FC Product Manual, Rev. B 4.5.1 Caching write data Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to be written to the medium is stored while the drive performs the Write command. If read caching is enabled (RCD=0), then ...

Cheetah 15K.4 FC Product Manual, Rev. B 15 want to configure the cache to provide large volumes of sequential data in a non-repetitive manner. In this case, the ability of the cache to “look ahead” to the next contiguous segments of sequential data is a good thing. The Performance Mode (PM) bit cont...

Cheetah 15K.4 FC Product Manual, Rev. B 17 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 ...

18 Cheetah 15K.4 FC 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 ...

Cheetah 15K.4 FC Product Manual, Rev. B 19 5.2.3 Hot plugging the drive Inserting and removing the drive on the FC-AL will interrupt loop operation. The interruption occurs when the receiver of the next device in the loop must synchronize to a different input signal. FC error detection mecha-nisms, ...

20 Cheetah 15K.4 FC Product Manual, Rev. B Performance impact S.M.A.R.T. attribute data is saved to the disc so that the events that caused a predictive failure can be recre-ated. The drive measures and saves parameters once every two hours subject to an idle period on the FC-AL bus. The process of ...

Cheetah 15K.4 FC Product Manual, Rev. B 21 The thermal monitor system generates a warning code of 01-0B01 when the temperature exceeds the speci-fied limit in compliance with the SCSI standard. The drive temperature is reported in the FRU code field of mode sense data. You can use this information t...

Cheetah 15K.4 FC Product Manual, Rev. B 23 5.2.6.2.4 Log page entries When the drive begins DST, it creates a new entry in the Self-test Results Log page. The new entry is created by inserting a new self-test parameter block at the beginning of the self-test results log parameter section of the log ...

24 Cheetah 15K.4 FC Product Manual, Rev. B Product repair and return information Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal void...

Cheetah 15K.4 FC Product Manual, Rev. B 25 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 ...

Cheetah 15K.4 FC Product Manual, Rev. B 31 6.3 Power dissipation ST3146954FC Typical power dissipation under idle conditions in 2Gb operation is 13.96 watts (47.6 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locat...

34 Cheetah 15K.4 FC 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 ...

Cheetah 15K.4 FC Product Manual, Rev. B 35 6.4.3 Effective altitude (sea level) a. Operating –1,000 to +10,000 feet (–305 to +3,048 meters) b. Non-operating –1,000 to +40,000 feet (–305 to +12,210 meters) 6.4.4 Shock and vibration Shock and vibration limits specified in this document are measured di...

Cheetah 15K.4 FC Product Manual, Rev. B 37 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 (zero to peak) Vibration may be applied in the X, ...

38 Cheetah 15K.4 FC Product Manual, Rev. B 6.5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figure 13 for detailed mounting configuration dimensions. See Se...

Cheetah 15K.4 FC Product Manual, Rev. B 39 7.0 Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capaci-ties are not dependent upon use of defect management routines by the host (initiator). Defect and error management ...

42 Cheetah 15K.4 FC Product Manual, Rev. B 7.4 Background Media Scan Background Media Scan (BGMS) is a self-initiated media scan. It performs sequential reads across the entire pack of the media while the drive is idle. In RAID arrays, BGMS allows hot spare drives to be scanned for defects prior to ...

Cheetah 15K.4 FC Product Manual, Rev. B 43 8.0 Installation Cheetah 15K.4 FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or termi-nators on the drive. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connector (FC-SCA) — no cables are requi...

44 Cheetah 15K.4 FC Product Manual, Rev. B 8.2 LED connections A connector, J6, is provided on the printed circuit board assembly (PCBA) to provide port bypass, drive active, and drive fault LED connections (see Figure 15). See Sections 9.5.7, 9.5.8, and 9.5.9 for descriptions of LED functions. Figu...

Cheetah 15K.4 FC Product Manual, Rev. B 45 8.2.1 J6 connector requirements Recommended mating connector part number: Berg receptacle, 6-position, Berg part number 690-006. 8.3 Drive orientation The drive may be mounted in any orientation. All drive performance characterizations, however, have been d...

Cheetah 15K.4 FC Product Manual, Rev. B 47 9.0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K.4 FC drives. Addi-tional information is provided in the Fibre Channel Interface Manual (part number 77767496). 9.1 FC-AL features This secti...

Cheetah 15K.4 FC Product Manual, Rev. B 49 9.1.4 Fibre Channel port login Table 9 identifies the required content of the N_Port Login (PLOGI) payload from an initiator. Table 9: N_Port login (PLOGI) payload Bytes 0-15 03 00 00 00 09 09 BB BB CF XX FS FS XX XX XX XX Common 16-31 XX XX XX XX PN PN PN ...

50 Cheetah 15K.4 FC Product Manual, Rev. B 9.1.5 Fibre Channel port login accept Table 10 identifies the N_Port Login access payload values. 9.1.6 Fibre Channel Process Login Table 11 lists the process login payload data. XX Indicates fields that are not used. Table 10: N_Port Login Accept (ACC) pay...

Cheetah 15K.4 FC Product Manual, Rev. B 51 9.1.7 Fibre Channel Process Login Accept Table 12 lists Cheetah 15K.4 FC process login accept payload data. 9.1.8 Fibre Channel fabric login Table 13 lists the fabric login payload from the drive. Table 12: Process Login Accept (ACC) payload Bytes 0-15 02 1...

52 Cheetah 15K.4 FC Product Manual, Rev. B 9.1.9 Fibre Channel fabric accept login Table 14 lists the required content of the Fabric Login Accept (ACC) payload from the fabric. Table 14: Fabric Login Accept (ACC) payload Bytes 0-15 02 00 00 00 09 09 BB BB CF XX FS FS R_ A_ T0 V_ Common 16-31 E_ D_ T...

Cheetah 15K.4 FC Product Manual, Rev. B 53 9.1.10 Fibre Channel Arbitrated Loop options Table 15 lists the FC-AL options supported by Cheetah 15K.4 FC drives. 9.2 Dual port support Cheetah 15K.4 FC drives have two independent FC-AL ports. These ports may be connected on independent loops or on the s...

54 Cheetah 15K.4 FC Product Manual, Rev. B 9.3 SCSI commands supported Table 16 lists the SCSI commands supported by Cheetah 15K.4 FC drives. Table 16: Supported commands Command code Supported [4] Command name 00h Y Test unit ready 01h Y Rezero unit 03h Y Request sense Y Extended sense Y Field poin...

58 Cheetah 15K.4 FC Product Manual, Rev. B 9.3.1 Inquiry data Table 17 lists the Inquiry command data that the drive should return to the initiator per the format given in the Fibre Channel Interface Manual . * Copyright year (changes with actual year). ** 02 = SCSI-2 implemented with some SCSI-3 fe...

Cheetah 15K.4 FC Product Manual, Rev. B 63 9.4 Miscellaneous operating features and conditions Table 21 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...

64 Cheetah 15K.4 FC Product Manual, Rev. B 9.5 FC-AL physical interface Figure 17 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 con-nector. Figure 19 provides the dimensions of the FC-SCA connector. Figure 20 provides the dimensions of the J6 connector. ...

Cheetah 15K.4 FC Product Manual, Rev. B 65 9.5.2 Connector requirements The FC-AL SCA device connector is illustrated in Figure 19. The J6 connector is illustrated in Figure 20. Figure 19. FC-AL SCA device connector dimensions Figure 20. J6 connector dimensions Table 23: Recommended mating SCA part ...

66 Cheetah 15K.4 FC Product Manual, Rev. B 9.5.3 Electrical description Fibre Channel drives use the FC-SCA connector for:• DC power• FC-AL interface• Drive select (device identification)• Option selection• Enclosure Services interface This 40-pin connector is designed to plug directly into a backpa...

Cheetah 15K.4 FC Product Manual, Rev. B 67 9.5.5 FC-AL transmitters and receivers A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 21. The receiver is required to provide the AC coupling to eliminate ground shift noise. Figure 21. FC-AL transmitters and receivers ...

Cheetah 15K.4 FC Product Manual, Rev. B 69 9.5.11 SEL_6 through SEL_0 ID lines The SEL_6 through SEL_0 ID lines determine drive address, and, optionally, for an Enclosure Services Inter-face. When the Parallel ESI line is high, the enclosure backpanel must provide address information on the SEL line...

Cheetah 15K.4 FC Product Manual, Rev. B 71 9.5.12 Device control codes The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at power up to determine the link rate on the Fibre Channel ports. Both ports run at the same rate. If the backpanel does not connect to these lines, the drive has...

72 Cheetah 15K.4 FC Product Manual, Rev. B 9.6.2 LED driver signals Fault and Active LED signals are located in the FC-SCA connector (J1) and through the indicator connector (J6). See Table 30 for the output characteristics of the LED drive signals. 9.6.3 FC Differential output The serial output sig...

Cheetah 15K.4 FC Product Manual, Rev. B 73 Figure 23 provides the data valid eye diagram for typical and minimum requirements to recover data at the specified interface error rate. The inputs are AC coupled on the drive. Figure 23. Receive eye diagram Table 33: Eye diagram data values Link rate 1 GH...

Cheetah 15K.4 FC Product Manual, Rev. B 75 10.0 Seagate Technology support services Online services Internet www.seagate.com for information about Seagate products and services. Worldwide support is available 24 hours daily by e-mail for your questions. Presales Support: www.seagate.com/support/emai...

76 Cheetah 15K.4 FC Product Manual, Rev. B Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate drives. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-relat...

Cheetah 15K.4 FC Product Manual, Rev. B 77 European support services For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe-cific location. If your location is not listed here, dial our presales and technical support call center at +1-405-324-4714...

78 Cheetah 15K.4 FC Product Manual, Rev. B Asia/Pacific support services For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. The Asia/Pacific toll-free numbers are available from 6:00 A . M . to 10:45 A . M . and 12:00 P . M . to 6:00 P . M . (Austr...

Cheetah 15K.4 FC Product Manual, Rev. B 79 Index Numerics 12 volt pins 67 3rd party reserve command 57 5 volt pins 67 A Abort Sequence (ABTS) 47 abort task set function 48 AC coupling 67 AC power requirements 25 ACA active status 63 ACA active, faulted initiator status 63 Accept (ACC) 47 acoustics 3...

84 Cheetah 15K.4 FC Product Manual, Rev. B LED driver 72 single-unit shipping pack kit 10 SMART 9 , 19 SMP = 1 in Mode Select command 63 SO 49 , 52 spindle brake 8 Stacked connection req. 49 , 52 standards 3 Start unit/stop unit command 55 start/stop time 12 support services 75 Supported diagnostics...