Page 2 - ©2007, Seagate Technology LLC All rights reserved.
©2007, Seagate Technology LLC All rights reserved. Publication number: 100465943, Rev. A October 2007 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 SeaTDD are either trademarks or r...
Page 3 - Contents
Cheetah 15K.6 FC Product Manual, Rev. A i Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . ...
Page 4 - ii
ii Cheetah 15K.6 FC Product Manual, Rev. A 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.4.4 Shock an...
Page 5 - iii
Cheetah 15K.6 FC Product Manual, Rev. A iii 9.6 Signal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739.6.1 TTL input characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 9....
Page 6 - iv
Page 7 - List of Figures
Cheetah 15K.6 FC Product Manual, Rev. A v List of Figures Figure 1. Typical ST3300656FC current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 2. Typical ST3146356FC current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 9 - Scope; This manual describes Seagate Technology
Cheetah 15K.6 FC Product Manual, Rev. A 1 1.0 Scope This manual describes Seagate Technology ® LLC, Cheetah ® 15K.6 FC (Fibre Channel) disc drives. Cheetah 15K.6 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifi-cations to the extent described in this manual...
Page 11 - Applicable standards and reference documentation; Standards; Electromagnetic compatibility
Cheetah 15K.6 FC Product Manual, Rev. A 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...
Page 12 - Electromagnetic compliance; • Typical current use microprocessor; Electromagnetic compliance for the European Union; European Union Restriction of Hazardous Substances (RoHS)
4 Cheetah 15K.6 FC Product Manual, Rev. A 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 sys-tem repr...
Page 13 - Reference documents; Specification for Acoustic Test Requirement and Procedures
Cheetah 15K.6 FC Product Manual, Rev. A 5 Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws and regulations which restrict chemical content in electronic products. These systems include standard operat-ing procedures that ensure that restric...
Page 15 - General description
Cheetah 15K.6 FC Product Manual, Rev. A 7 3.0 General description Cheetah 15K.6 FC drives provide high performance, high capacity data storage for a variety of systems includ-ing engineering workstations, network servers, mainframes, and supercomputers. Cheetah 15K.6 FC drives support 4-Gbit Fibre C...
Page 17 - Programmable drive capacity; Factory-installed options
Cheetah 15K.6 FC Product Manual, Rev. A 9 3.3 Performance • Programmable multi-segmentable cache buffer • 800 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 ...
Page 18 - standard OEM drive shipped, but extra copies may be ordered.; User-installed accessories
10 Cheetah 15K.6 FC Product Manual, Rev. A • Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection against transit damage. Units shipped individually require additional protection as provided by the single unit shipping pack. Users planning single u...
Page 19 - Performance characteristics; Internal drive characteristics; Access time; Not including controller overhead
Cheetah 15K.6 FC Product Manual, Rev. A 11 4.0 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of Cheetah 15K.6 FC drives. 4.1 Internal drive characteristics ST3450856FC ST3300656FC ST3146356FC Drive capacity* 450 300...
Page 20 - There is no power control switch on the drive.
12 Cheetah 15K.6 FC Product Manual, Rev. A 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...
Page 21 - Cache operation; Drive transfers the requested logical blocks to the initiator.; Caching write data
Cheetah 15K.6 FC Product Manual, Rev. A 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...
Page 22 - Table 18 shows the mode default settings for the drive.; Prefetch operation
14 Cheetah 15K.6 FC Product Manual, Rev. A If the number of write data logical blocks exceed the size of the segment being written into, when the end of the segment is reached, the data is written into the beginning of the same cache segment, overwriting the data that was written there at the beginn...
Page 23 - Reliability specifications; Error rates; Recoverable Errors
Cheetah 15K.6 FC Product Manual, Rev. A 15 5.0 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all inter-face timings, power supply voltages, environmental requirements and drive mounting constraints. 5.1 Error rates ...
Page 24 - Seek errors; seeks. Unrecoverable seek errors; Interface errors; Reliability and service; • 250 average on/off cycles per year; Preventive maintenance; No routine scheduled preventive maintenance is required.; Hot plugging the drive
16 Cheetah 15K.6 FC Product Manual, Rev. A 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 ...
Page 25 - 2 milliseconds
Cheetah 15K.6 FC Product Manual, Rev. A 17 The Pass-through state is disabled while the drive performs self test of the FC interface. The control line for an external port bypass circuit remains in the Enable Bypass state while self test is running. If the bypass circuit is present, loop operation m...
Page 28 - DST has two testing options:; Log page entries; The Self-Test Results Value field is set to Fh
20 Cheetah 15K.6 FC Product Manual, Rev. A • Motor will not spin• Motor will not lock to speed• Servo will not lock on track• Drive cannot read configuration tables from the disc In these conditions, the drive responds to a Test Unit Ready command with an 02/04/00 or 02/04/03 code. 5.2.6.2.2 Invokin...
Page 31 - Physical/electrical specifications; AC power requirements; Notes
Cheetah 15K.6 FC Product Manual, Rev. A 23 6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive ...
Page 33 - General DC power requirement notes.; The +5V and +12V supplies should employ separate ground returns.; Conducted noise immunity; The +12V and +5V current profiles are shown in the following figures.
Cheetah 15K.6 FC Product Manual, Rev. A 25 347 I/Os per second for ST3300656FC and ST3146356FC models. Current and power specified at nomi-nal voltages. [7] During idle, the drive heads are relocated every 60 seconds to a random location within the band from three-quarters to maximum track. General ...
Page 37 - Power dissipation
Cheetah 15K.6 FC Product Manual, Rev. A 29 6.3 Power dissipation ST3450856FC Typical power dissipation under idle conditions in 4 Gbit operation is 12.27 watts (41.9 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). Lo...
Page 39 - Environmental limits; Temperature
Cheetah 15K.6 FC Product Manual, Rev. A 31 ST3146356FC Typical power dissipation under idle conditions in 4 Gbit operation is 9.56 watts (32.6 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). Locate the typical I/O ra...
Page 40 - Figure 7. Locations of the HDA temperature check point; Relative humidity; The values below assume that no condensation on the drive occurs.; Shock and vibration
32 Cheetah 15K.6 FC Product Manual, Rev. A b. Non-operating –40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. Figure 7. Locations of the...
Page 41 - b. Operating—abnormal; Package size; Any
Cheetah 15K.6 FC Product Manual, Rev. A 33 b. Operating—abnormal Equipment, as installed for normal operation, does not incur physical damage while subjected to intermit-tent shock not exceeding 40 Gs at a maximum duration of 11 msec (half sinewave). Shock occurring at abnormal levels may promote de...
Page 42 - Figure 8. Recommended mounting
34 Cheetah 15K.6 FC Product Manual, Rev. A Figure 8. Recommended mounting Z Y X Z Y X
Page 43 - Vibration; Operating normal translational random flat profile; Acoustics
Cheetah 15K.6 FC Product Manual, Rev. A 35 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 10–500 Hz @ 0.5 G (zero to peak) Vibration may be applied in the X,...
Page 45 - Mechanical specifications; Figure 9. Mounting configuration dimensions
Cheetah 15K.6 FC Product Manual, Rev. A 37 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 9 for detailed mounting configuration dimensions. See Sec...
Page 47 - Defect and error management; Drive internal defects/errors
Cheetah 15K.6 FC Product Manual, Rev. A 39 7.0 Defect and error management Seagate continues to use innovative technologies to manage defects and errors. These technologies are designed to increase data integrity, perform drive self-maintenance, and validate proper drive operation. SCSI defect and e...
Page 49 - Background Media Scan; Read and write retry count maximum recovery times [1]
Cheetah 15K.6 FC Product Manual, Rev. A 41 [1] These values are subject to change. Setting these retry counts to a value below the default setting could result in an increased unrecovered error rate which may exceed the value given in this product manual. A setting of zero (0) will result in the dri...
Page 50 - Deferred Auto-Reallocation
42 Cheetah 15K.6 FC Product Manual, Rev. A service by the host system. On regular duty drives, if the host system makes use of the BMS Log Page, it can avoid placing data in suspect locations on the media. Unreadable and recovered error sites will be logged or reallocated per ARRE/AWRE settings. Wit...
Page 51 - Idle Read After Write
Cheetah 15K.6 FC Product Manual, Rev. A 43 7.7 Idle Read After Write Idle Read After Write (IRAW) utilizes idle time to verify the integrity of recently written data. During idle periods, no active system requests, the drive reads recently written data from the media and compares it to valid write c...
Page 53 - Installation; Drive ID/option selection
Cheetah 15K.6 FC Product Manual, Rev. A 45 8.0 Installation Cheetah 15K.6 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...
Page 54 - Figure 10. Air flow; Drive mounting
46 Cheetah 15K.6 FC Product Manual, Rev. A If forced air is necessary, possible air-flow patterns are shown in Figure 10. The air-flow patterns are created by fans either forcing or drawing air as shown in the illustrations. Conduction, convection, or other forced air-flow patterns are acceptable as...
Page 55 - Grounding
Cheetah 15K.6 FC Product Manual, Rev. A 47 8.5 Grounding Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the user. The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electri-cally isolating shock mounts. If...
Page 57 - Interface requirements; Fibre Channel link service frames; Link services supported
Cheetah 15K.6 FC Product Manual, Rev. A 49 9.0 Interface requirements This section partially describes the interface requirements as implemented on Cheetah 15K.6 FC drives. Addi-tional information is provided in the Fibre Channel Interface Manual (part number 100293070). 9.1 FC-AL features This sect...
Page 59 - Fibre Channel port login; Bytes
Cheetah 15K.6 FC Product Manual, Rev. A 51 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 ...
Page 60 - Fibre Channel port login accept; Table 10 identifies the N_Port Login access payload values.; Fibre Channel Process Login; Table 11 lists the process login payload data.
52 Cheetah 15K.6 FC Product Manual, Rev. A 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...
Page 61 - Fibre Channel Process Login Accept; Table 12 lists Cheetah 15K.6 FC process login accept payload data.; Fibre Channel fabric login; Table 13 lists the fabric login payload from the drive.
Cheetah 15K.6 FC Product Manual, Rev. A 53 9.1.7 Fibre Channel Process Login Accept Table 12 lists Cheetah 15K.6 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...
Page 62 - Fibre Channel fabric accept login
54 Cheetah 15K.6 FC Product Manual, Rev. A 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...
Page 63 - Fibre Channel Arbitrated Loop options; Dual port support; ing a soft address to prevent an address conflict.; FC-AL options supported
Cheetah 15K.6 FC Product Manual, Rev. A 55 9.1.10 Fibre Channel Arbitrated Loop options Table 15 lists the FC-AL options supported by Cheetah 15K.6 FC drives. 9.2 Dual port support Cheetah 15K.6 FC drives have two independent FC-AL ports. These ports may be connected on independent loops or on the s...
Page 64 - SCSI commands supported; Supported commands
56 Cheetah 15K.6 FC Product Manual, Rev. A 9.3 SCSI commands supported Table 16 lists the SCSI commands supported by Cheetah 15K.6 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...
Page 67 - Command code
Cheetah 15K.6 FC Product Manual, Rev. A 59 [1] Cheetah 15K.6 FC 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 mod...
Page 68 - Inquiry data; Mode Sense data; Default values; Cheetah 15K.6 FC inquiry data
60 Cheetah 15K.6 FC Product Manual, Rev. A 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). ** SCSI Revision support. Refer to the SPC rele...
Page 73 - Miscellaneous operating features and conditions
Cheetah 15K.6 FC Product Manual, Rev. A 65 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...
Page 74 - FC-AL physical interface; Figure 11. Physical interface; Physical characteristics; This section defines physical interface connector.; Physical description; Figure 12. Port bypass circuit physical interconnect; J1 interface connector
66 Cheetah 15K.6 FC Product Manual, Rev. A 9.5 FC-AL physical interface Figure 11 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA). Figure 13 pro-vides the dimensions of the FC-SCA connector. Details of the physical, electrical, and logical characteristics are provide...
Page 76 - *Short pins in mating backpanel connector.; FC-AL transmitters and receivers
68 Cheetah 15K.6 FC Product Manual, Rev. A Table 24: FC-SCA pin descriptions *Short pins in mating backpanel connector. [1] This pin may be connected to external logic to detect the presence of the drive. The drive connects this pin to the common ground. [2] Pins 9, 10, 17, 18, and 39 are option sel...
Page 77 - The Fault LED Out signal is driven by the drive when:
Cheetah 15K.6 FC Product Manual, Rev. A 69 9.5.6 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. Four 12 volt pins provide +12 volt power to the drive. The current return for the +12 volt power su...
Page 78 - • Transmitter/receiver wrap test failure; Motor start controls
70 Cheetah 15K.6 FC Product Manual, Rev. A 9.5.8 Active LED Out The Active LED Out signal is driven by the drive as indicated in Table 25. The Active LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper +5 volt supply through an appropriate current limit...
Page 79 - Parallel Enclosure Services Interface (ESI)
Cheetah 15K.6 FC Product Manual, Rev. A 71 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...
Page 81 - Device control codes; Signal characteristics; TTL input characteristics; Table 29 provides the TTL characteristics.
Cheetah 15K.6 FC Product Manual, Rev. A 73 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...
Page 85 - Seagate Technology support services; Internet; For information regarding Seagate products and services, visit; Seagate Service Centers; Presales Support; Seagate technical support is available to assist you online at
Cheetah 15K.6 FC Product Manual, Rev. A 77 10.0 Seagate Technology support services Internet For information regarding Seagate products and services, visit www.seagate.com . Worldwide support is available 24 hours daily by email for your questions. Presales Support: [email protected] Technical Su...
Page 86 - Customer Service Operations; Warranty Service; USA/Canada/Latin America support services; Direct dial; and Mexico; Europe, the Middle East and Africa Support Services
78 Cheetah 15K.6 FC Product Manual, Rev. A 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-rel...
Page 87 - Index; Numerics
Cheetah 15K.6 FC Product Manual, Rev. A 79 Index Numerics 12 volt pins 69 3rd party reserve command 59 5 volt pins 69 A Abort Sequence (ABTS) 49 abort task set function 50 AC coupling 68 AC power requirements 23 ACA active status 65 ACA active, faulted initiator status 65 Accept (ACC) 49 acoustics 3...
Page 92 - See also cooling
84 Cheetah 15K.6 FC Product Manual, Rev. A single-unit shipping pack kit 10 SMART 9 , 17 SMP = 1 in Mode Select command 65 SO 51 , 54 spindle brake 8 Stacked connection req. 51 , 54 standards 3 Start unit/stop unit command 57 start/stop time 12 support services 77 Supported diagnostics pages command...
