Page 3 - Contents
Cheetah 15K.6 FC Product Manual, Rev. C i Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . ...
Page 4 - ii
ii Cheetah 15K.6 FC Product Manual, Rev. C 6.0 Physical/electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6.1 AC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - iii
Cheetah 15K.6 FC Product Manual, Rev. C iii 9.5.4 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 9.5.5 FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9.5.6 Power . . . . ...
Page 6 - iv
Page 7 - Scope; This manual describes Seagate Technology; Model Number
Cheetah 15K.6 FC Product Manual, Rev. C 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 9 - Applicable standards and reference documentation; Standards; Electromagnetic compatibility
Cheetah 15K.6 FC Product Manual, Rev. C 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 10 - 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. C 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 11 - Reference documents; Specification for Acoustic Test Requirement and Procedures
Cheetah 15K.6 FC Product Manual, Rev. C 5 tory analytical validation testing, and an internal auditing process to ensure that all standard operating procedures are complied with. 2.3 Reference documents ANSI Fibre Channel Documents X3.230-1994 FC Physical and Signaling Interface (FC-PH) X3.297.1997 ...
Page 13 - General description
Cheetah 15K.6 FC Product Manual, Rev. C 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 14 - Standard features
8 Cheetah 15K.6 FC Product Manual, Rev. C 3.1 Standard features Cheetah 15K.6 FC drives have the following standard features: • 4-Gbit Fibre Channel interface • Integrated dual port FC-AL controller • Concurrent dual port transfers • Support for FC arbitrated loop, private and public attachment • Di...
Page 15 - Programmable drive capacity
Cheetah 15K.6 FC Product Manual, Rev. C 9 3.2 Media description The media used on the drive has an aluminum substrate coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection. 3.3 Performance • Programmable multi-s...
Page 16 - Factory-installed options; standard OEM drive shipped, but extra copies may be ordered.; User-installed accessories
10 Cheetah 15K.6 FC Product Manual, Rev. C 3.6 Factory-installed options You may order the following items which are incorporated at the manufacturing facility during production or packaged before shipping. Some of the options available are (not an exhaustive list of possible options): • Other capac...
Page 17 - Performance characteristics; Internal drive characteristics; Access time; Not including controller overhead
Cheetah 15K.6 FC Product Manual, Rev. C 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 ST3450056FC ST3300056FC...
Page 18 - General performance characteristics; There is no power control switch on the drive.
12 Cheetah 15K.6 FC Product Manual, Rev. C 4.2.2 Format command execution time (minutes) When changing sector sizes, the format times shown below may need to be increased by 30 minutes. Note. There is no significant difference in the format time between FDE and non-FDE models of the same capacity. 4...
Page 19 - Cache operation; Drive transfers the requested logical blocks to the initiator.; Caching write data
Cheetah 15K.6 FC Product Manual, Rev. C 13 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cach...
Page 20 - Table 21 shows the mode default settings for the drive.; Prefetch operation
14 Cheetah 15K.6 FC Product Manual, Rev. C are to be written are already stored in the cache from a previous read or write command. If there are, the respective cache segments are cleared. The new data is cached for subsequent Read commands. If the number of write data logical blocks exceed the size...
Page 21 - Reliability specifications; Error rates; Recoverable Errors
Cheetah 15K.6 FC Product Manual, Rev. C 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 22 - 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. C 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 23 - 2 milliseconds
Cheetah 15K.6 FC Product Manual, Rev. C 17 present, loop operation may continue. If the bypass circuit is not present, loop operation will be halted while the self test of the FC interface runs. When the self test completes successfully, the control line to the bypass circuit is disabled and the dri...
Page 24 - Primary Temperature
18 Cheetah 15K.6 FC Product Manual, Rev. C Determining rate S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded errors increases to an unacceptable level. To determine rate, error events are logged and compared to the number of total operations...
Page 26 - Short and extended tests; DST has two testing options:; Log page entries; The Self-Test Results Value field is set to Fh; Abort
20 Cheetah 15K.6 FC Product Manual, Rev. C 5.2.6.2.3 Short and extended tests DST has two testing options: 1. short 2. extended These testing options are described in the following two subsections. Each test consists of three segments: an electrical test segment, a servo test segment, and a read/ver...
Page 29 - Physical/electrical specifications; AC power requirements
Cheetah 15K.6 FC Product Manual, Rev. C 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. C 27 Motor command. [5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating condition is defined as random 8 block reads at 330 I/Os per second for ST3450856FC/ST34500...
Page 40 - Power dissipation
34 Cheetah 15K.6 FC Product Manual, Rev. C 6.3 Power dissipation 450GB models Typical power dissipation under idle conditions in 4 Gbit operation is 12.09 watts (41.25 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 7). ...
Page 42 - Environmental limits; Temperature
36 Cheetah 15K.6 FC Product Manual, Rev. C 146GB models Typical power dissipation under idle conditions in 4 Gbit operation is 9.51 watts (32.45 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 7). Locate the typical I/O ...
Page 43 - Figure 10. Locations of the HDA temperature check point; Relative humidity; The values below assume that no condensation on the drive occurs.
Cheetah 15K.6 FC Product Manual, Rev. C 37 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 10. Locations of th...
Page 44 - Package size
38 Cheetah 15K.6 FC Product Manual, Rev. C 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 intern...
Page 45 - Figure 11. Recommended mounting
Cheetah 15K.6 FC Product Manual, Rev. C 39 Figure 11. Recommended mounting Z Y X Z Y X
Page 46 - Vibration; Operating normal translational random flat profile; Acoustics
40 Cheetah 15K.6 FC Product Manual, Rev. C 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 48 - Mechanical specifications; Figure 12. Mounting configuration dimensions
42 Cheetah 15K.6 FC Product Manual, Rev. C 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 12 for detailed mounting configuration dimensions. See Se...
Page 49 - Defect and error management; Drive internal defects/errors
Cheetah 15K.6 FC Product Manual, Rev. C 43 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 51 - Background Media Scan; Read and write retry count maximum recovery times [1]
Cheetah 15K.6 FC Product Manual, Rev. C 45 [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 53 - Installation; Drive ID/option selection
Cheetah 15K.6 FC Product Manual, Rev. C 47 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 13. Air flow; Drive mounting
48 Cheetah 15K.6 FC Product Manual, Rev. C If forced air is necessary, possible air-flow patterns are shown in Figure 13. 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 57 - Interface requirements; Fibre Channel link service frames; Link services supported; Basic link service frames
Cheetah 15K.6 FC Product Manual, Rev. C 51 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. C 53 9.1.4 Fibre Channel port login Table 12 identifies the required content of the N_Port Login (PLOGI) payload from an initiator. Table 12: 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 P...
Page 60 - Fibre Channel port login accept; Table 13 identifies the N_Port Login access payload values.; Fibre Channel Process Login; Table 14 lists the process login payload data.
54 Cheetah 15K.6 FC Product Manual, Rev. C 9.1.5 Fibre Channel port login accept Table 13 identifies the N_Port Login access payload values. 9.1.6 Fibre Channel Process Login Table 14 lists the process login payload data. XX Indicates fields that are not used. Table 13: N_Port Login Accept (ACC) pay...
Page 61 - Fibre Channel Process Login Accept; Table 15 lists Cheetah 15K.6 FC process login accept payload data.; Fibre Channel fabric login; Table 16 lists the fabric login payload from the drive.
Cheetah 15K.6 FC Product Manual, Rev. C 55 9.1.7 Fibre Channel Process Login Accept Table 15 lists Cheetah 15K.6 FC process login accept payload data. 9.1.8 Fibre Channel fabric login Table 16 lists the fabric login payload from the drive. Table 15: Process Login Accept (ACC) payload Bytes 0-15 02 1...
Page 62 - Fibre Channel fabric accept login
56 Cheetah 15K.6 FC Product Manual, Rev. C 9.1.9 Fibre Channel fabric accept login Table 17 lists the required content of the Fabric Login Accept (ACC) payload from the fabric. Table 17: 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.; SCSI commands supported; FC-AL options supported
Cheetah 15K.6 FC Product Manual, Rev. C 57 9.1.10 Fibre Channel Arbitrated Loop options Table 18 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 - Supported commands
58 Cheetah 15K.6 FC Product Manual, Rev. C Table 19: Supported commands Command code Supported (Y/N) [4] Command name Executable state of standard SCSI commands in the presence of LBA banding (applies to FDE models only) Affects entire Drive (Y/N) User Data Accessed (Y/N) Affected LBA Unlocked ReadL...
Page 68 - Inquiry data; Mode Sense data; Default values; Cheetah 15K.6 FC inquiry data
62 Cheetah 15K.6 FC Product Manual, Rev. C [3] Reference Mode Sense command 1Ah for mode pages supported. [4] Y = Yes. Command is supported. N = No. Command is not supported. A = Support is available on special request. 9.3.1 Inquiry data Table 20 lists the Inquiry command data that the drive should...
Page 73 - Miscellaneous operating features and conditions
Cheetah 15K.6 FC Product Manual, Rev. C 67 9.4 Miscellaneous operating features and conditions Table 24 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 14. Physical interface; Physical characteristics; This section defines physical interface connector.; Physical description; Figure 15. Port bypass circuit physical interconnect; J1 interface connector
68 Cheetah 15K.6 FC Product Manual, Rev. C 9.5 FC-AL physical interface Figure 14 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA). Figure 16 pro-vides the dimensions of the FC-SCA connector. Details of the physical, electrical, and logical characteristics are provide...
Page 75 - Berg
Cheetah 15K.6 FC Product Manual, Rev. C 69 9.5.2 Connector requirements The FC-AL SCA device connector is illustrated in Figure 16. Figure 16. FC-AL SCA device connector dimensions 9.5.3 Electrical description Fibre Channel drives use the FC-SCA connector for: • DC power• FC-AL interface• Drive sele...
Page 76 - *Short pins in mating backpanel connector.; FC-AL transmitters and receivers
70 Cheetah 15K.6 FC Product Manual, Rev. C Table 27: 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. C 71 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
72 Cheetah 15K.6 FC Product Manual, Rev. C 9.5.8 Active LED Out The Active LED Out signal is driven by the drive as indicated in Table 28. 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. C 73 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 32 provides the TTL characteristics.; Reserved for power failure warning.
Cheetah 15K.6 FC Product Manual, Rev. C 75 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 82 - Serial output voltage swing; Serial input voltage swing; AC coupled
76 Cheetah 15K.6 FC Product Manual, Rev. C 9.6.2 LED driver signals Fault and Active LED signals are located in the FC-SCA connector (J1). See Table 33 for the output character-istics of the LED drive signals. 9.6.3 FC Differential output The serial output signal voltage characteristics are provided...
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. C 79 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
80 Cheetah 15K.6 FC Product Manual, Rev. C Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-rel...
Page 87 - Index; Numerics
Cheetah 15K.6 FC Product Manual, Rev. C 81 Index Numerics 12 volt pins 71 3rd party reserve command 61 5 volt pins 71 A Abort Sequence (ABTS) 51 abort task set function 52 AC coupling 70 AC power requirements 23 ACA active status 67 ACA active, faulted initiator status 67 Accept (ACC) 51 acoustics 4...
Page 92 - See also cooling
86 Cheetah 15K.6 FC Product Manual, Rev. C shock 37 , 38 and vibration 37 shock mount 49 signal characteristics 75 LED driver 76 single-unit shipping pack kit 10 SMART 9 , 17 SMP = 1 in Mode Select command 67 SO 53 , 56 spindle brake 8 Stacked connection req. 53 , 56 standards 3 Start unit/stop unit...
