Seagate Cheetah NS 10K Product Manual Download Page 55

Page: 55 / 90

Cheetah NS FC Product Manual, Rev. A

9.0

Interface requirements

This section partially describes the interface requirements as implemented on Cheetah NS FC drives. Addi-
tional information is provided in the Fibre Channel Interface Manual (part number 100293070).

9.1

FC-AL features

This section lists the Fibre Channel-specific features supported by Cheetah NS FC drives.

9.1.1

Fibre Channel link service frames

Table 5 lists the link services supported by Cheetah NS FC drives.

Table 5:

Link services supported

Type of frame

Link service

Basic link service frames

Abort Sequence (ABTS)

Basic link service reply frames

Basic_Accept (BA_ACC)

Basic_Reject (BA_RJT)

Extended link service frames

N_Port Login (PLOGI)

Fabric Login (FLOGI)

Logout (LOGO)

Process Login (PRLI)

Process Logout (PRLO)

Read Link Status (RLS)

Fabric Address Notification (FAN)

Port Discovery (PDISC)

Address Discovery (ADISC)

Third-party Process Logout (TRPLO)

Extended link service reply frames

Accept (ACC)

Link Service Reject (LS_RJT)

Fibre Channel Services

Summary of Contents for Cheetah NS 10K

Page 1: ...Product Manual Cheetah NS FC 100457516 Rev A June 2007 ST3400755FC ST3300955FC ...

Page 2: ...ompanies in the United States and or other countries All other trademarks or registered trademarks are the property of their respective owners One gigabyte or GB equals one billion bytes when referring to hard drive capacity Accessible capacity may vary depending on operating environment and formatting Quantitative usage examples for various applications are for illustrative purposes Actual quanti...

Page 3: ...Cheetah NS FC Product Manual Rev A i ...

Page 4: ...ii Cheetah NS FC Product Manual Rev A ...

Page 5: ...rformance characteristics 12 4 3 Start stop time 12 4 4 Prefetch multi segmented cache control 13 4 5 Cache operation 13 4 5 1 Caching write data 13 4 5 2 Prefetch operation 14 5 0 Reliability specifications 15 5 1 Error rates 15 5 1 1 Recoverable Errors 15 5 1 2 Unrecoverable Errors 15 5 1 3 Seek errors 16 5 1 4 Interface errors 16 5 2 Reliability and service 16 5 2 1 Annualized Failure Rate AFR ...

Page 6: ...hannel link service frames 45 9 1 2 Fibre Channel task management functions 46 9 1 3 Fibre Channel task management responses 46 9 1 4 Fibre Channel port login 47 9 1 5 Fibre Channel port login accept 48 9 1 6 Fibre Channel Process Login 48 9 1 7 Fibre Channel Process Login Accept 49 9 1 8 Fibre Channel fabric login 49 9 1 9 Fibre Channel fabric accept login 50 9 1 10 Fibre Channel Arbitrated Loop ...

Page 7: ...uct Manual Rev A iii 9 6 Signal characteristics 68 9 6 1 TTL input characteristics 68 9 6 2 LED driver signals 69 9 6 3 FC Differential output 69 9 6 4 FC Differential input 69 10 0 Seagate Technology support services 71 ...

Page 8: ...iv Cheetah NS FC Product Manual Rev A ...

Page 9: ...er vs input output operations per second at 4 Gbit 29 Figure 4 Locations of the HDA temperature check point 30 Figure 5 Recommended mounting 32 Figure 6 Mounting configuration dimensions 35 Figure 7 Air flow 42 Figure 8 Physical interface 61 Figure 9 Port bypass circuit physical interconnect 61 Figure 10 FC AL SCA device connector dimensions 62 Figure 11 FC AL transmitters and receivers 63 Figure ...

Page 10: ......

Page 11: ...rives Cheetah NS FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifica tions to the extent described in this manual The Fibre Channel Interface Manual part number 100293070 describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel drives ...

Page 12: ...2 Cheetah NS FC Product Manual Rev A ...

Page 13: ...tallation into a suitable enclosure prior to use The drive is supplied as a subassembly and is not subject to Subpart B of Part 15 of the FCC Rules and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides reasonable shielding The drive is capab...

Page 14: ...ibility Directive 89 336 EEC of 03 May 1989 as amended by Directive 92 31 EEC of 28 April 1992 and Directive 93 68 EEC of 22 July 1993 Australian C Tick If this model has the C Tick Marking it complies with the Australia New Zealand Standard AS NZS3548 1995 and meets the Electromagnetic Compatibility EMC Framework requirements of Australia s Spectrum Man agement Agency SMA Korean MIC If this model...

Page 15: ... for SCSI FCP NCITS TR 19 Private Loop SCSI Direct Attach PLDA NCITS TR 20 Fabric Loop Attachment FC FLA SFF 8045 Specification for 40 pin SCA 2 Connector with Parallel Selection SFF 8067 Specification for 40 pin SCA 2 Connector with Bidirectional Enclosure Services Interface ANSI Small Computer System Interface SCSI Documents X3 131 1994 SCSI 2 X3 270 1996 SCSI 3 Architecture Model NCITS 305 199X...

Page 16: ...6 Cheetah NS FC Product Manual Rev A ...

Page 17: ...ighest level with the ANSI SCSI 1 standard Note Never disassemble the HDA and do not attempt to service items in the sealed enclosure heads media actuator etc as this requires special facilities The drive does not contain user replaceable parts Opening the HDA for any reason voids your warranty Cheetah drives use a dedicated landing zone at the innermost radius of the media to eliminate the possib...

Page 18: ...nd each port User selectable logical block size 512 520 524 or 528 bytes per logical block Selectable frame sizes from 256 to 2 112 bytes Industry standard 3 5 inch low profile form factor dimensions Programmable logical block reallocation scheme Flawed logical block reallocation at format time Programmable auto write and read reallocation Reed Solomon error correction code Sealed head and disc as...

Page 19: ...s product are 2 Seagate drives also may be used at the maximum available capacity at a given sector size but the excess capacity above the guaranteed level will vary between 10K and 15K families and from generation to gener ation depending on how each sector size actually formats out for zone frequencies and splits over servo bursts This added capacity potential may range from 0 1 to 1 3 percent a...

Page 20: ...ovide maximum protection against transit damage Units shipped individually require additional protection as provided by the single unit shipping pack Users planning single unit distribution should specify this option The Safety and Regulatory Agency Specifications part number 75789512 is usually included with each standard OEM drive shipped but extra copies may be ordered 3 8 User installed access...

Page 21: ...sec variable with zone Disc rotation speed 10k 10k rpm Avg rotational latency 2 98 2 98 msec One Gbyte equals one billion bytes when referring to hard drive capacity Accessible capacity may vary depending on operating environment and formatting 4 2 Seek performance See Section 9 5 FC AL physical interface on page 61 and the Fibre Channel Interface Manual part number 77767496 for additional timing ...

Page 22: ...ing a NOTIFY ENABLE SPINUP primitive through either port the drive becomes ready for normal operations within 30 seconds excluding the error recovery procedure If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY ENABLE SPINUP primitive within 5 seconds the drive fails the START STOP UNIT command The START STOP UNIT command may b...

Page 23: ...s directly to the medium to retrieve it The retrieved data merely passes through some buffer segment on the way to the host All data transfers to the host are in accordance with buffer full ratio rules See the explanation provided with the information about Mode Page 02h disconnect reconnect control in the Fibre Channel Interface Manual The following is a simplified description of the prefetch cac...

Page 24: ... error occurs while writing the data to the medium and Good status has already been returned a deferred error will be gen erated The Synchronize Cache command may be used to force the drive to write all cached write data to the medium Upon completion of a Synchronize Cache command all data received from previous write commands will have been written to the medium Tables 17 and 18 show the mode def...

Page 25: ...pecifications Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a read and using write bits transferred for recoverable errors occurring during a write 5 1 2 Unrecoverable Errors Unrecoverable Data Errors Sense Key 03h are specified at less than 1 sector in error per 1016 bits trans ferred Unrecoverable Data Errors resulting from the same c...

Page 26: ...ceed the values specified in Section 6 4 1 Operation at case temperatures outside the specifications in Section 6 4 1 may increase the AFR decrease the MTBF AFR and MTBF statistics are poplulation statistics that are not relevant to individual units AFR and MTBF specifications are based on the following assumptions for Enterprise Storage System environments 8 760 power on hours per year 250 averag...

Page 27: ...anta neous drive failures Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating per formance of the drive and the thresholds are optimized to minimize false and failed predictions Controlling S M A R T The operating mode of S M A R T is controlled by the DEXCPT and PERF bits on the Informational Exceptions Control mode page 1Ch Use the DEXCPT b...

Page 28: ...acceptable To accom plish this a counter is incremented each time the error rate is unacceptable and decremented not to exceed zero whenever the error rate is acceptable If the counter continually increments such that it reaches the pre dictive threshold a predictive failure is signaled This counter is referred to as the Failure History Counter There is a separate Failure History Counter for each ...

Page 29: ...ults value of the diagnostic log page if a functional failure is encountered during DST The channel and servo parameters are not modified to test the drive more stringently and the number of retries are not reduced All retries and recovery processes are enabled during the test If data is recoverable no failure condition will be reported regardless of the number of retries required to recover the d...

Page 30: ...test the positioning mechanism The read operation tests the read head element and the media surface The write element is tested through read write read operations The integrity of the media is checked through a read verify scan of the media Motor functionality is tested by default as a part of these tests The anticipated length of the Extended test is reported through the Control Mode page 5 2 6 2...

Page 31: ... designated facility in accordance with Seagate s warranty procedure Seagate will pay for transporting the repair or replacement item to the customer For more detailed warranty information refer to the standard terms and conditions of purchase for Seagate products on your pur chase documentation The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at ...

Page 32: ...22 Cheetah NS FC Product Manual Rev A ...

Page 33: ...table 3 Table 2 DC power requirements for ST3400755FC model 1 Gbit 2 Gbit 4 Gbit Notes Amps Amps Amps Amps Amps Amps Voltage 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 70 0 35 0 72 0 35 0 78 0 35 Maximum starting current peak DC DC 3σ 3 0 82 1 67 0 84 1 67 0 90 1 67 peak AC AC 3σ 3 1 09 3 20 1 17 3 23 1 15 3 24 Delayed motor start max DC 3σ 1 4 0 59 0 03 0...

Page 34: ...2 5 1 5 for ST3300955FC models 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 DC power requirement notes 1 Minimum current loading for each supply voltage is not less than 1 2 of the maximum operating current shown 2 The 5V and 12V supplies should employ separate ground returns 3 Where power is provided...

Page 35: ...m allowed noise values given below are peak to peak measurements and apply at the drive power connector 6 2 2 Power sequencing The drive does not require power sequencing The drive protects against inadvertent writing during power up and down 5 V 250 mV pp from 0 to 100 kHz to 20 MHz 12 V 800 mV pp from 100 Hz to 8 KHz 450 mV pp from 8 KHz to 20 KHz 250 mV pp from 20 KHz to 5 MHz ...

Page 36: ...iles The 12V and 5V current profiles for the ST3400755FC and ST3300955FC models are shown below Note All times and currents are typical See Tables 2 and 3 for maximum current requirements Figure 1 Typical ST3400755FC drive 4 Gbit 5V and 12V current profiles ...

Page 37: ...Cheetah NS FC Product Manual Rev A 27 Figure 2 Typical ST3300955FC drive 4 Gbit 5V and 12V current profiles ...

Page 38: ...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 Figure 3 ST3400755FC DC current and power vs input output operations per second at 4 Gbit ST3400755 CURRENT POWER vs THROUGHPUT FC 4GB Random 8 Block Reads 0 000 0 200 0 400 0 600 0 800 1 000 1 200 1 400 0 0 50 0 1 00 0 1 5...

Page 39: ...he 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 Figure 4 ST3300955FC DC current and power vs input output operations per second at 4 Gbit ST3300955 CURRENT POWER vs THROUGHPUT FC 4GB Random 8 Block Reads 0 000 0 200 0 400 0 600 0 800 1 000 1 200 1 400 0 0 50 0 1 00 0 1 50 0 200 0 2...

Page 40: ... C drive ambient temperature range with a maximum temperature gradient of 36 F 20 C per hour Air flow may be needed in the drive enclosure to keep within this range see Section 8 3 Operation at HDA case temperatures outside this range may adversely affect the drives ability to meet specifications To confirm that the required cooling for the electronics and HDA case is provided place the drive in i...

Page 41: ...bnormal shock period Speci fied operational performance will continue when normal operating shock levels resume Shock may be applied in the X Y or Z axis Shock is not to be repeated more than two times per second c Non operating The limits of non operating shock shall apply to all conditions of handling and transportation This includes both isolated drives and integrated drives The drive subjected...

Page 42: ...aged in single or multipacks with a gross weight of 20 pounds 8 95 kg or less by Seagate for general freight shipment shall withstand a drop test from 48 inches 1 070 mm against a concrete floor or equivalent Figure 6 Recommended mounting Z Y X Z Y X ...

Page 43: ...ine 0 5 octave min Vibration may be applied in the X Y or Z axis 6 4 5 Acoustics Sound power during idle mode shall be 3 6 bels typical when measured to ISO 7779 specification Sound power while operating shall be 4 0 bels typical when measured to ISO 7779 specification There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea sured according to Seagate...

Page 44: ... Chromium PBB and PBDE in electronic products effective July 2006 This drive is manufactured with components and materials that comply with the RoHS Directive 6 4 9 China Restriction of Hazardous Substances RoHS Directive This product has an Environmental Protection Use Period EPUP of 20 years The following table contains information mandated by China s Marking Requirements for Control of Pollutio...

Page 45: ...ide and four on the bottom Max screw penetration into side of drive is 0 15 in 3 81 mm Max screw tightening torque is 6 0 in lb 3 32 nm with minimum full thread engagement of 0 12 in 3 05 mm Notes 1 Inches A B C D E F H J K L M N P R S T U 26 10 147 00 101 60 95 25 3 18 44 45 28 50 101 60 6 35 41 60 4 60 1 02 41 28 41 10 7 00 0 38 0 38 1 028 5 787 4 000 3 750 0 125 1 750 1 122 4 000 0 250 1 638 0 ...

Page 46: ...36 Cheetah NS FC Product Manual Rev A ...

Page 47: ...red after factory formatting Locations of defects found and reallocated during error recovery procedures after drive shipment are listed in the G list defects growth list The P and G lists may be referenced by the initiator using the Read Defect Data command Details of the SCSI commands supported by the drive are described in the Fibre Channel Interface Manual Also more information on the drive Er...

Page 48: ...covered error rate which may exceed the value given in this product manual A setting of zero 0 will result in the drive not performing error recovery For example suppose the Read Write Recovery page has the RC bit set to 0 read retry count set to 4 and the recovery time limit field Mode Sense page 01 bytes 10 and 11 set to FF FF hex maximum A four LBA Read command is allowed to take up to 347 42 m...

Page 49: ...by setting the Start time after idle to 5ms all subsequent scans begin after 500ms of idle time Other features that normally use idle time to function will function normally because BMS functions for bursts of 800ms and then suspends activity for 100ms to allow other background functions to operate BMS interrupts immediately to service host commands from the interface bus while performing reads BM...

Page 50: ... write command to rewrite the data DAR is most effective when AWRE and ARRE are enabled this is the default setting from the Seagate factory With AWRE and ARRE disabled DAR is unable to reallocate the failing location and will report an error sense code indicating that a write command is being attempted to a previously failing location 7 7 Idle Read After Write Idle Read After Write IRAW utilizes ...

Page 51: ...sed to verify or obtain an address The loop initialization process is per formed when power is applied to the drive when a device is added or removed from the Fibre Channel loop or when a device times out attempting to win arbitration Set all option selections in the connector prior to applying power to the drive If you change options after applying power to the drive recycle the drive power to ac...

Page 52: ...rface stiffness units in lb in or N mm and X is the out of plane surface distortion units in inches or millimeters The out of plane distortion X is determined by defining a plane with three of the four mounting points fixed and evaluating the out of plane deflection of the fourth mounting point when a known force F is applied to the fourth point Note Before mounting the drive in any kind of 3 5 in...

Page 53: ...ctri cally isolating shock mounts If it is desired for the system chassis to not be connected to the HDA PCBA ground the systems integrator or user must provide a nonconductive electrically isolating method of mount ing the drive in the host equipment Increased radiated emissions may result if you do not provide the maximum surface area ground connection between system ground and drive ground This...

Page 54: ...44 Cheetah NS FC Product Manual Rev A ...

Page 55: ...ble 5 lists the link services supported by Cheetah NS FC drives Table 5 Link services supported Type of frame Link service Basic link service frames Abort Sequence ABTS Basic link service reply frames Basic_Accept BA_ACC Basic_Reject BA_RJT Extended link service frames N_Port Login PLOGI Fabric Login FLOGI Logout LOGO Process Login PRLI Process Logout PRLO Read Link Status RLS Fabric Address Notif...

Page 56: ... task management responses Table 7 lists the FC SCSI FCP response codes returned for task management functions supported Table 6 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 Table 7 FC SCSI FCP response codes Function name Response code Function complete 00 Function not supported 04 Funct...

Page 57: ...ng offset Must 1 Random relative offset Not checked Port Login Accept will return a 0 not supported Valid version level x N_Port F_Port Must 0 N_Port Alternate credit model Must 1 Other bits reserved xxx XX FS Receive buffer field size The FS field in the common and Class 3 parameters is checked for the range 128 FS 2 112 and a multiple of four bytes For multiple frame sequences all frames but the...

Page 58: ...00 00 FS FS 00 FF 00 00 Class 3 80 83 00 01 00 00 84 95 00 00 00 00 00 00 00 00 00 00 00 00 Reserved 96 99 00 00 00 00 100 111 00 00 00 00 00 00 00 00 00 00 00 00 Vendor 112 115 00 00 00 00 Version CC Bytes 22 23 and 24 and 30 31 and 32 are currently factory set to 00 04 CF respectively subject to change FS Receive buffer field size The drive returns and uses the receive buffer size from the N_Por...

Page 59: ...0 CC CC 32 35 CC UI UI UI 36 47 00 00 00 00 00 00 00 00 00 00 00 00 Class 1 48 51 00 00 00 00 52 63 00 00 00 00 00 00 00 00 00 00 00 00 Class 2 64 67 00 00 00 00 68 79 80 00 00 00 00 00 08 40 00 00 00 00 Class 3 80 83 00 00 00 00 84 95 00 00 00 00 00 00 00 00 00 00 00 00 Reserved 96 99 00 00 00 00 100 111 00 00 00 00 00 00 00 00 00 00 00 00 Vendor 112 115 00 00 00 00 Version CC Bytes 22 23 and 24 ...

Page 60: ... checked The FC AL drive uses BB Credit of zero 0 CF Common features This binary field selects the common features requested by the fabric login MSB Continuously increasing offset x Random relative offset x Valid version level x N_Port F_Port Must 1 F_Port Alternate credit model Must 1 Other bits reserved xxx XX FS Receive buffer field size The FS field in the common and Class 3 parameters is chec...

Page 61: ... will have the same loop address If both ports are connected in the same loop and hard addressing is used at least one port will attempt tak ing a soft address to prevent an address conflict Subject to buffer availability the Cheetah NS FC drives support Concurrent port transfers The drive supports receiving transfers on both ports at the same time when the ports are on independent loops Full dupl...

Page 62: ...0Ah Y Write 0Bh Y Seek 12h Y Inquiry Y Vital product data page 00h Y Unit serial number page 80h Y Implemented operating def page 81h Y Device Identification page 83h Y Firmware numbers page C0h Y Date code page C1h Y Jumper settings page C2h Y Device Behavior page C3h 15h Y Mode select same pages as Mode Sense command shown below 3 16h Y Reserve N 3rd party reserved N Extent reservation 17h Y Rel...

Page 63: ...late page Y Enclosure services page 1Dh Y Send diagnostics page Y Supported diagnostics pages Y Translate page 25h Y Read capacity 28h Y Read extended Y Disable page out Y Force unit access N Relative address 2Ah Y Write extended Y Disable page out Y Force unit access N Relative address 2Bh Y Seek extended 2Eh Y Write and verify Y Disable page out Y Byte check N Relative address 2Fh Y Verify Y Dis...

Page 64: ... Download microcode with offsets and save mode 7 Y Firmware download option 2 3Ch Y Read buffer Y Read combined header and data mode 0 Y Read data mode 2 Y Read descriptor mode 3 3Eh Y Read long 3Fh Y Write long 40h N Change definition 41h Y Write same N PBdata N LBdata 42 4Bh N Not used 4Ch Y Log Select 4Dh Y Log Sense Y Support Log page 00h Y Write Error Counter page 02h Y Read Error Counter pag...

Page 65: ...page 0Fh Y Self Test Results page 10h Y Background Medium Scan page 15h Y Cache Statistics Counter page 37h Y Factory Log page 3Eh 4E 4Fh N Not used 50h N XD write 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...

Page 66: ...e those in a Mode Select command to set up new current and saved values where the values are change able 2 Saved values Saved values are stored on the drive s media using a Mode Select command Only parameter values that are allowed to be changed can be changed by this method Parameters in the saved values list that are not changeable by the Mode Select command get their values from default values ...

Page 67: ...ues for Mode page 81 Note in columns 5 and 6 bytes 04 and 05 there is 00h which indicates that in bytes 04 and 05 none of the bits are changeable Note also that bytes 06 07 09 10 and 11 are not changeable because those fields are all zeros In byte 02 hex value FF equates to the binary pattern 11111111 If there is a zero in any bit position in the field it means that bit is not changeable Since all...

Page 68: ...0 00 CHG 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 84 16 01 68 7e 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 CHG 84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff CHG 87 0a 0f ff 00 00 00 00 00 00 ff ff DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 f...

Page 69: ...0 00 00 00 00 00 00 00 00 00 00 DEF 84 16 01 68 7e 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00 CHG 84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DEF 87 0a 00 0b ff 00 00 00 00 00 ff ff CHG 87 0a 0f ff 00 00 00 00 00 00 ff ff DEF 88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00 CHG 88 12 a5 00 00 00 ff ff ff ff 00 00 20 00 00 00 00 00 00 00 DEF 8a 0...

Page 70: ...vent notification N Synchronized locked spindle operation Y Segmented caching N Zero latency read Y Queue tagging up to 128 queue tags supported Y Deferred error handling Y Parameter rounding controlled by Round bit in Mode Select page 0 Y Reporting actual retry count in Extended Sense bytes 15 16 and 17 N Adaptive caching Y SMP 1 in Mode Select command needed to save RPL and rotational offset byt...

Page 71: ...ices A maxi mum of 127 devices may have addresses however one of the addresses is reserved for a fabric port switch device This means 126 addresses are available for FC AL devices More FC AL compatible devices may physically reside on the loop but they will not be functional because they would not be able to obtain valid addresses Port bypass circuits PBCs allow devices to be inserted into unpopul...

Page 72: ...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 ...

Page 73: ...d shift noise Figure 12 FC AL transmitters and receivers Pin Signal name Signal type Pin Signal name Signal type 1 EN bypass port A Low Voltage TTL output 21 12 Volts charge 2 12 Volts 22 Ground 3 12 Volts 23 Ground 4 12 Volts 24 Port A_in FC Diff input pair 5 Parallel ESI 25 Port A_in 6 Ground 1 26 Ground 7 Active LED out Open collector out 27 Port B_in FC Diff input pair 8 Reserved 28 Port B_in ...

Page 74: ...er contacts to achieve power surge reductions and to aid in hot plugging the drives There are longer voltage contacts in the connector to enable the drive filter capacitors to charge Current to the drive through the long charge pins is limited by the system in which the drive operates Three of the 12 volt pins are shorter to allow capacitive pre charging through the longer 12 volt charge pin Two o...

Page 75: ...bypass state the drive continues to receive on the inbound fibre Enable Bypass may be deactivated by detection of a Loop Port Enable primitive sequence if the drive has completed self test and a hardware failure is not present Failure modes detected by the disc drive that will enable bypass include Transmitter receiver wrap test failure Loss of receive clock Loss of transmission clock Drive interf...

Page 76: ...is value signals the drive that physical addresses are not being assigned using the SEL lines and that a soft address will be determined by FC AL loop initialization When the Parallel ESI line is low the enclosure backpanel logic switches to ESI mode if supported There are two modes of ESI seven bits of enclosure status and a bidirectional mode ESI support and the mode are determined by the drive ...

Page 77: ... 14 7C 39 57 34 64 100 CE 0F 15 7A 3A 58 33 65 101 CD 10 16 79 3B 59 32 66 102 CC 11 17 76 3C 60 31 67 103 CB 12 18 75 3D 61 2E 68 104 CA 13 19 74 3E 62 2D 69 105 C9 14 20 73 3F 63 2C 6A 106 C7 15 21 72 40 64 2B 6B 107 C6 16 22 71 41 65 2A 6C 108 C5 17 23 6E 42 66 29 6D 109 C3 18 24 6D 43 67 27 6E 110 BC 19 25 6C 44 68 26 6F 111 BA 1A 26 6B 45 69 25 70 112 B9 1B 27 6A 46 70 23 71 113 B6 1C 28 69 4...

Page 78: ...s Table 26 provides the TTL characteristics Table 25 Device control code values 2 pin 17 1 pin 18 0 pin 39 Definition 0 0 0 Reserved for power failure warning 0 0 1 Reserved for auto negotiation of link rate 0 1 0 Reserved 0 1 1 Reserved 1 0 0 Reserved 1 0 1 4 250 GHz operation on both ports 1 1 0 2 125 GHz operation on both ports 1 1 1 1 0625 GHz operation on both ports Table 26 TTL characteristi...

Page 79: ...racteristics of the outputs and the receiver Figure 13 provides the data output valid eye diagram relative to the bit cell time Figure 13 Transmit eye diagram 9 6 4 FC Differential input The serial input signal voltage characteristics are provided in Table 29 Table 27 LED drive signal State Current drive available Output voltage LED off high 0 IOH 100µA LED on low IOL 30 mA 0 VOL 0 8V Table 28 FC ...

Page 80: ...rror rate The inputs are AC coupled on the drive Figure 14 Receive eye diagram Table 30 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 1 Short Ideal load 2 End of compliance channel RCV eye Typical 659 ps 305 ps 145 ps Minimum 395 ps 226 ps 113 ps 941 ps 659 ps Vin mv Typical Minimum 376 ps ...

Page 81: ...with product information program benefits and sales tools You may register for customized communications that are not available on the web These communications contain product launch EOL pricing promotions and other channel related information To learn more about the benefits or to register go to spp seagate com any time from anywhere in the world Seagate Service Centers Presales Support Our Presa...

Page 82: ...lable on a global basis for the return of defective products Contact your customer support representative for the location nearest you USA Canada Latin America support services For an extensive list of telephone numbers to technical support presales and warranty service in USA Canada Latin America including business hours go to the Contact Us page on www seagate com Global Customer Support Presale...

Page 83: ...y 11 B Background Media Scan 39 backpanel 62 backplane 65 basic link service frames 45 Basic_Accept BA_ACC 45 Basic_Reject BA_RJT 45 BB 47 50 BB Credit 47 50 BMS 39 buffer data 8 space 13 busy status 60 bypass circuit 16 Byte check command 53 bytes per track 11 C cache operation 13 cache segments 13 Caching parameters page 08h command 53 caching write data 13 Canadian Department of Communications ...

Page 84: ...51 E electrical description of connector 62 signal characteristics 68 specifications 23 electromagnetic compatibility 3 electromagnetic susceptibility 34 EMI requirements 3 enable bypass port A 65 port B 65 signal 65 state 16 Enclosure Services interface 62 Enclosure services page command 53 environmental limits 30 requirements 15 environmental control 33 error detection mechanisms FC 16 managemen...

Page 85: ... 52 description 61 error rate 15 errors 16 illustrated 61 physical 61 requirements 45 intermediate condition met good status 60 intermediate good status 60 Intermix 47 50 internal data rate 11 internal defects errors 37 internal drive characteristics 11 IRAW 40 J J1 connector 41 Jumper settings page command 52 jumpers 41 L latency average rotational 11 LBdata 54 LED driver signals 69 Link Service ...

Page 86: ...3 old port state FC AL options 51 OPEN Full Duplex FC AL options 51 OPEN half duplex FC AL options 51 Open sequences per exchange 47 operating 30 31 33 option configurations 41 option selection 62 options 10 51 orientation 31 OS 47 out of plane distortion 42 P P_LOGI received on Port A 48 received on Port B 48 package size 31 package test specification 5 packaged 31 parameter rounding 60 pass thro...

Page 87: ...ents 5 Regenerate command 55 Register FC 4 Types RFT_ID 45 Relative address command 53 relative humidity 30 Release command 52 Released 10 command 55 reliability 9 specifications 15 reliability and service 16 repair and return information 21 reporting actual retry count 60 Request sense command 52 reservation conflict status 60 Reserve command 52 Reserved 10 command 55 resonance 31 return informat...

Page 88: ...regulation 3 See also cooling terminate task function 46 terminators 41 Test unit ready command 52 Third party Process Logout TRPLO 45 tracks per inch 11 Translate page command 53 transmit eye diagram 69 transmitters 63 transporting the drive 21 TTL input characteristics 68 U UI 48 49 unformatted 9 unique identifier 48 49 Unit attention page 00h command 52 Unit serial number page command 52 Unreco...

Page 89: ......

Page 90: ...Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 100457516 Rev A Printed in USA ...

Search results

Summary of Contents for Cheetah NS 10K

Reviews:

Related manuals for Cheetah NS 10K

Brands by name

Popular brands

Seagate Cheetah NS 10K, Product Manual

Search results

Summary of Contents for Cheetah NS 10K

Reviews:

Related manuals for Cheetah NS 10K

Brands by name

Popular brands