Cheetah 15K.
Cheetah 15K.
©2005, 2006, Seagate Technology LLC All rights reserved Publication number: 100366896, Rev. B March 2006 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications.
Revision status summary sheet Revision Rev. A Rev. B (Draft 1) Date 07/15/05 03/17/06 Sheets Affected All. Pages 25 and 26.
Contents 1.0 Scope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.5 Air cleanliness . . . . . . .
.6.1 9.6.2 9.6.3 9.6.4 10.0 TTL input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LED driver signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FC Differential output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FC Differential input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Cheetah 15K.4 FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Typical ST3146954FC drive, 2 Gbit, +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 specifications to the extent described in this manual. The Fibre Channel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel drives. Figure 1. Cheetah 15K.4 FC family disc drive Cheetah 15K.
2 Cheetah 15K.4 FC Product Manual, Rev.
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 achieve optimum performance and compliance with applicable industry and governmental regulations. Special attention must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation.
2.1.2 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 system represents the most popular characteristics for test platforms. The system configurations include: • Typical current use microprocessor • 3.
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 Project T11/1506-D ANSI INCITS 332-1999 ANSI INCITS 332-1999/AM1-2003 ANSI INCITS 350-2003 NCITS TR-19 NCITS TR-20 SFF-8045 SFF-8067 FC-FS-2 Fibre Channel - Framing and Signaling FC-PI-2 Fibre Channel - PHYSICAL INTERFACES - 2 FC.AL-2 Arbitrated Loop 2 FC.
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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 capacity data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. Cheetah 15K.
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.
3.3 • • • • • • • 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 and stop commands (spindle stops spinning) Adaptive seek velocity; improved seek performance 3.4 • • • • Performance Reliability 1,400,000 hour MTBF Increased LSI circuitry integration Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.
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 maximum number of LBAs is rounded down to the maximum capacity. 3.6 Factory-installed accessories OEM standard drives are shipped with the Cheetah 15K.
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 Drive capacity Read/write data heads Bytes per track Bytes per surface Tracks per surface (total) Tracks per inch Peak bits per inch Internal data rate Disc rotation speed Avg rotational latency 4.2 ST3146954FC 146.8 8 471,916 18,351 50,864 85,000 628 685-1,142 15k 2.0 ST373554FC 73.
4.2.2 Format command execution time (minutes) ST3146954FC ST373554FC ST336854FC Maximum (with verify) 90 60 30 Maximum (without verify) 45 30 15 4.2.
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 operation, the prefetch feature overlaps cache operation somewhat as described in sections 4.5.1 and 4.5.2. All default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this drive family are given in Table 18. 4.5 Note.
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 data written to the medium is retained in the cache to be made available for future read cache hits. The same buffer space and segmentation is used as set up for read functions.
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 controls the way the drive switches the cache buffer into different modes of segmentation.
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5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints. Seek error rate: Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data Interface error rate: MTBF: Preventive maintenance: 1.
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 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 108 seeks.
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 mechanisms, character sync, running disparity, word sync, and CRC are able to detect any error. Recovery is initiated based on the type of error.
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 recreated. The drive measures and saves parameters once every two hours subject to an idle period on the FC-AL bus. The process of measuring off-line attribute data and saving data to the disc is uninterruptable. The maximum on-line only processing delay is summarized below: Maximum processing delay S.M.A.R.T.
The thermal monitor system generates a warning code of 01-0B01 when the temperature exceeds the specified 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 to determine if the warning is due to the temperature exceeding the drive threatening temperature or the user-specified temperature.
5.2.6.2 Implementation This section provides all of the information necessary to implement the DST function on this drive. 5.2.6.2.1 State of the drive prior to testing The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be in process of doing a format, or another DST.
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 page. Existing data will be moved to make room for the new parameter block. The drive reports 20 parameter blocks in the log page. If there are more than 20 parameter blocks, the least recent parameter block will be deleted.
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 voids the warranty. 24 Cheetah 15K.4 FC Product Manual, Rev.
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 are sh‘own below. Values indicated apply at the drive connector.
Table 3: DC power requirements for ST373554FC drives Notes Voltage 1 Gbit mode 2 Gbit mode 4 Gbit mode (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) +5V +12V [2] +5V +12V [2] +5V +12V [2] Regulation [5] ±5% ±5% [2] ±5% ±5% [2] ±5% ±5% [2] Avg idle current DCX [1] [7] 0.62 0.57 0.66 0.56 0.69 0.57 Maximum starting current (peak DC) DC 3σ [3] 0.83 1.88 0.94 1.85 0.77 1.71 (peak AC) AC 3σ [3] 0.98 4.08 1.11 4.08 1.17 2.94 [1] [4] 0.54 0.03 0.58 0.04 0.70 0.
[7] and 230 I/Os per second for ST373554FC andST336854FC models. Current and power specified at nominal voltages. Decreasing +5 volt supply by 5% increases 5 volt current by 2.5%. Decreasing +12 volt supply by 5% increases 12 volt current by 3.0% (2% for ST373554FC and ST336854FC models). During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track. General DC power requirement notes. 1.
Figure 2. Typical ST3146954FC drive, 2 Gbit, +12V current profile Figure 3. Typical ST3146954FC drive, 2 Gbit, +5V current profile 28 Cheetah 15K.4 FC Product Manual, Rev.
Figure 4. Typical ST373554FC drive +12V current profile Figure 5. Typical ST373554FC drive +5V current profile Cheetah 15K.4 FC Product Manual, Rev.
Figure 6. Typical ST336854FC drive +12V current profile Figure 7. Typical ST336854FC drive +5V current profile 30 Cheetah 15K.4 FC Product Manual, Rev.
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). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.
ST373554FC Typical power dissipation under idle conditions in 2Gb operation is 11.49 watts (39.21 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123. 18.00 1.600 16.00 1.400 14.00 1.200 12.
ST336854FC Typical power dissipation under idle conditions in 2Gb operation is 9.88 watts (33.7 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123. 18.00 1.600 16.00 1.400 14.00 1.200 12.00 1.
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 wet bulb temperature is 82°F (28°C). 6.4.1 Temperature a. Operating The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C) The maximum allowable HDA case temperature is 60°C.
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 directly on the drive chassis. If the drive is installed in an enclosure to which the stated shock and/or vibration criteria is applied, resonances may occur internally to the enclosure resulting in drive movement in excess of the stated limits.
d. Packaged Disc 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/product weight Drop height <600 cu in (<9,800 cu cm) 600-1800 cu in (9,800-19,700 cu cm) >1800 cu in (>19,700 cu cm) >600 cu in (>9,800 cu cm) Any 0-20 lb (0 to 9.1 kg) 0-20 lb (0 to 9.1 kg) 20-40 lb (9.
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, Y, or Z axis. Operating normal translational random flat profile 10 - 400 Hz 0.4 g RMS 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 Section 8.5, “Drive mounting.” Height: Width: Depth: Weight: 1.000 in 4.000 in 5.75 in 1.5 pounds 25.4 mm 101.6 mm 146.05 mm 0.
7.0 Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capacities are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI protocol involves the drive internal defect/error management and FC-AL system error considerations (errors in communications between the initiator and the drive).
Table 5 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 taken to perform reallocations. Reallocations are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recovery time limit for the command has not yet been met. Time needed to perform reallocation is not counted against the recovery time limit.
Table 5: Read and write retry count maximum recovery times [1] Read retry count Maximum recovery time per LBA (cumulative, msec) Write retry count Maximum recovery time per LBA (cumulative, msec) 0 51.87 0 23.94 1 59.85 1 35.91 2 203.49 2 55.86 3 235.41 3 67.83 4 271.32 4 119.7 5 283.29 5 (default) 147.63 6 315.21 7 395.01 8 454.86 9 486.78 10 522.69 11 (default) 1,264.83 [1] These values are subject to change.
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 being put into service by the host system. On regular duty drives, if the host system makes use of the BGMS Log Page, it can avoid placing data in suspect locations on the media.
8.0 Installation Cheetah 15K.4 FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connector (FCSCA)—no cables are required. See Section 9.5 for additional information about this connector. Use the FC-AL interface to select drive ID and all option configurations for devices on the loop.
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. J6 Figure 14. Physical interface Drive Front Pin 1 J6 Reserved Port A Bypass LED [1] Port B Bypass LED [1] Fault LED [1] Reserved Active LED [2] Reserved +5V Active LED [1] Ground [3] [1] The drive has a 2.
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 done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations. 8.4 Cooling The host enclosure must dissipate heat from the drive.
8.5 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).
9.0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K.4 FC drives. Additional information is provided in the Fibre Channel Interface Manual (part number 77767496). 9.1 FC-AL features This section lists the Fibre Channel-specific features supported by Cheetah 15K.4 FC drives. 9.1.1 Fibre Channel link service frames Table 6 lists the link services supported by Cheetah 15K.4 FC drives.
9.1.2 Fibre Channel task management functions Table 7 lists the Fibre Channel SCSI Fibre Channel Protocol (FC SCSI FCP) task management functions supported. Table 7: Fibre Channel SCSI FCP task management functions Task name Supported Terminate task No Clear ACA Yes Target reset Yes Clear task set Yes Abort task set Yes 9.1.3 Fibre Channel task management responses Table 8 lists the FC SCSI FCP response codes returned for task management functions supported.
9.1.4 Fibre Channel port login Table 9 identifies the required content of the N_Port Login (PLOGI) payload from an initiator.
9.1.5 Fibre Channel port login accept Table 10 identifies the N_Port Login access payload values.
9.1.7 Fibre Channel Process Login Accept Table 12 lists Cheetah 15K.4 FC process login accept payload data. Table 12: Process Login Accept (ACC) payload Bytes 0-15 02 10 00 14 16-31 00 00 00 12 9.1.8 08 00 21 00 00 00 00 00 00 00 00 00 Fibre Channel fabric login Table 13 lists the fabric login payload from the drive.
9.1.9 Fibre Channel fabric accept login Table 14 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.
9.1.10 Fibre Channel Arbitrated Loop options Table 15 lists the FC-AL options supported by Cheetah 15K.4 FC drives. Table 15: FC-AL options supported Option Supported OPEN Half Duplex Accepted from another device. OPEN Full Duplex Sent to open another device. Accepted from another device. Private Loop Yes Public Loop Yes Old Port State No Loop Position Yes Loop Position Report Yes 9.2 Dual port support Cheetah 15K.4 FC drives have two independent FC-AL ports.
9.3 SCSI commands supported Table 16 lists the SCSI commands supported by Cheetah 15K.4 FC drives.
Table 16: Supported commands (continued) Command code Supported [4] Command name Y Control mode page (0Ah) Y Fibre Channel Interface Control page (19h) Y Power control page (1Ah) Y Information exceptions control page (1Ch) 1Bh Y Start unit/stop unit 1Ch Y Receive diagnostic results Y Supported diagnostics pages Y Translate page Y Enclosure services page Y Send diagnostics page Y Supported diagnostics pages Y Translate page 25h Y Read capacity 28h Y Read extended Y Disab
Table 16: Supported commands (continued) Command code Supported [4] Command name 37h Y Read defect data 39h N Compare 3Ah N Copy and verify 3Bh Y Write buffer Y Write combined header and data mode (0) Y Write data mode (2) N Download microcode mode (4) Y Download microcode and save modes (5) N Download microcode with offsets mode (6) Y Download microcode with offsets and save mode (7) Y Firmware download option [2] Y Read buffer Y Read combined header and data mode (0) Y
Table 16: Supported commands (continued) Command code Supported [4] Command name 51h N XP write 52h N XD read 53-54h N Not used 55h Y Mode Select (10) [3] 56h Y Reserved (10) Y 3rd party reserve N Extent reservation 57h Y Released (10) 58-59h N Not used 5Ah Y Mode Sense (10) [3] 5B-5Dh N Not used 5E A Persistent reserve in 5F A Persistent reserve out 60-7Fh N Not used 80h N XD write extended 81h N Rebuild 82h N Regenerate 83-8Fh N Not used A0h Y Rep
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. Table 17: Cheetah 15K.
On standard OEM drives, the saved values are taken from the default values list and stored into the saved values storage location on the media prior to shipping. 3. Current values Current values are volatile values being used by the drive to control its operation. A Mode Select command can be used to change the values identified as changeable values. Originally, current values are installed from saved or default values after a power on reset, hard reset, or Bus Device Reset message. 4.
Table 18: Mode Sense data saved, default and changeable values for ST3146954FC drives MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 11 17 73 30 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0b ff 00 00 00 05 00 ff ff 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 SAV 82 0e 80 80 00 00 00 00 00 00 05 bc 00 00 00 00 DEF 82 0e 80 80 00 00 00 00 00 00 05 bc 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00 SAV 83 16 56 20 00 00 00 30 00 00 02 c2 02 00
Table 19: Mode Sense data default and changeable values for ST373554FC drives MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 08 8b b9 98 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0b ff 00 00 00 05 00 ff ff 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 SAV 82 0e 80 80 00 00 00 00 00 00 01 3c 00 00 00 00 DEF 82 0e 80 80 00 00 00 00 00 00 01 3c 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00 SAV 83 16 2b 10 00 00 00 18 00 00 02 c2 02 00 00 01 0
Table 20: Mode Sense data default and changeable values for ST336854FC drives MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 04 45 dc cc 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0b ff 00 00 00 05 00 ff ff 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 SAV 82 0e 80 80 00 00 00 00 00 00 01 3c 00 00 00 00 DEF 82 0e 80 80 00 00 00 00 00 00 01 3c 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00 SAV 83 16 15 88 00 00 00 0c 00 00 02 c2 02 00 00 01 0
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.
9.5 FC-AL physical interface Figure 17 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 connector. Figure 19 provides the dimensions of the FC-SCA connector. Figure 20 provides the dimensions of the J6 connector. Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual.. J6 Figure 17. 9.5.
9.5.2 Connector requirements Table 23: Recommended mating SCA part numbers Part description Positions Part number Features AMP Vertical (SCA sequence) 40 787317-1 With polarization Berg 40 71781 With polarization Methode 40 512-220-91-101N With polarization Molex 40 717431040 With polarization The FC-AL SCA device connector is illustrated in Figure 19. The J6 connector is illustrated in Figure 20. 1.618 ± .003 in (41.1 ± 0.08 mm) Pin 20 Pin 40 Pin 1 Pin 21 .64 in (16.24 mm) 0.
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 backpanel. External cables are not required. 9.5.4 Pin descriptions This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.
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. 50 .01 TX RX Differential Transfer Medium Transmitter TY Figure 21. 9.5.6 50 100 Receiver RY .01 FC-AL transmitters and receivers Power Power is supplied through the FC-SCA with support for +5 volts and +12 volts. All of the voltage pins in the drive connector are the same length.
9.5.8 Active LED Out The Active LED Out signal is driven by the drive as indicated in Table 25.
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 Interface. When the Parallel ESI line is high, the enclosure backpanel must provide address information on the SEL line. Refer to table 27 for a mapping of SEL to FC-AL physical addresses (AL_PA). You can think of the SEL lines as the equivalent of a backpanel logic plug. The drives does not provide pull up resistors on these lines.
Table 27: Arbitrated loop physical address (AL_PA) values AL_PA (hex) SEL ID (hex) Setting (dec) AL_PA (hex) SEL ID (hex) Setting (dec) AL_PA (hex) SEL ID (hex) Setting (dec) EF E8 E4 E2 00 01 02 03 00 01 02 03 A3 9F 9E 9D 2B 2C 2D 2E 43 44 45 46 4D 4C 4B 4A 56 57 58 59 86 87 88 89 E1 E0 DC DA D9 D6 D5 D4 D3 04 05 06 07 08 09 0A 0B 0C 04 05 06 07 08 09 10 11 12 9B 98 97 90 8F 88 84 82 81 2F 30 31 32 33 34 35 36 37 47 48 49 50 51 52 53 54 55 49 47 46 45 43 3c 3A 39 36 5A 5B 5C 5D 5
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 10K ohm pull up resistors that default the device control code to 7 (1.0625 GHz). Table lists the supported codes. Table 28: Device control code values 2 (pin 17) 1 (pin 18) 0 (pin 39) Definition 0 0 0 Reserved for power failure warning.
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. Table 30: LED drive signal State Current drive available LED off, high 0 < IOH < 100µA LED on, low IOL < -30 mA 9.6.3 Output voltage 0 < VOL < 0.8V FC Differential output The serial output signal voltage characteristics are provided in Table 31.
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. Vin (mv) 941 ps 659 ps Typical 376 ps Minimum Figure 23. Receive eye diagram Table 33: Eye diagram data values Link rate 1 GHz 2 GHz 4 GHz Bit time 941 ps 470 ps 235 ps XMIT eye 725 ps min. 315 ps min. 1581/1132 Typical 659 ps 305 ps 145 ps Minimum 395 ps 226 ps 113 ps RCV eye 1. 2. Short Ideal load.
74 Cheetah 15K.4 FC Product Manual, Rev.
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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 37 active LED Out signal 68 Actual retry count bytes command 54 actuator assembly design 7 adaptive caching 63 Address Discovery (ADISC) 47 addresses 64 air cleanliness 37 air flow 45 illustrated 45 Alternate credit model 49, 52 altitude 35 ambient 34 ANS
D data block size modifing the 9 data buffer to/from disc media 12 data heads read/write 11 data rate internal 11 data transfer rate 12 data valid eye 73 Date code page command 54 DC power 66 requirements 25 defect and error management 39 deferred error handling 63 description 7 DEV_CTRL_CODE 71 Device Behavior page command 54 device control code values 71 Device Identification page command 54 device selection IDs 43 devices 43 dimensions 38 Disable page out command 55 disc rotation speed 11 Disconnect/reco
received on Port A 51 received on Port B 51 Force unit access command 55 form factor 8 format 43 Format command execution time 12 Format page (03h) command 54 Format unit command 54 front panel 38 FS 49, 50, 52 function complete, code 00 48 not supported, code 05 48 reject, code 04 48 G Good status 63 gradient 34 ground shift noise 67 grounding 46 H hard assigned arbitrated loop physical address (AL_PA) 43 HDA 46 heads read/write data 11 heat removal 45 host equipment 46 hot plugging the drive 19 humidity
SMP = 1 in Mode Select command 63 Synchronized (locked) spindle operation 63 Zero latency read 63 miscellaneous status support ACA active 63 ACA active, faulted initiator 63 Busy 63 Check condition 63 Condition met/good 63 Good 63 Intermediate/condition met/good 63 Intermediate/good 63 Reservation conflict 63 Task set full 63 miscorrected media data 17 Mode select (10) command 57 command 54 Mode sense (10) command 57 command 54 data, table 58, 60 monitoring state 19 motor start controls 68 option 12 mountin
Prefetch command 55 prefetch/multi-segmented cache control 12 Pre-Scan 42 preventive maintenance 17 private loop FC-AL options 53 Proc Assc 49 Process Accept (ACC) 51 Process Login (PRLI) 47, 50 Process Login Accept (ACC) payload 51 process login payload data 50 Process Logout (PRLO) 47 programmable drive capacity 9 public loop FC-AL options 53 pull down resistor 68 reliability 9 specifications 17 reliability and service 18 repair and return information 24 reporting actual retry count 63 Request sense comm
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.
Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100366896, Rev.