Seagate ST3300955FC 11 SEL6 through SEL0 ID lines, Parallel Enclosure Services Interface ESI

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9.5.11SEL_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. Refer to table 24 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. The backpanel is required to provide high and low inputs to the SEL_ID lines per the specifications in table 26 on page 68.

Note. Table 24 gives AL_PA values for each SEL value. The first entry in the table is SEL_ID 00. The last entry is SEL_ID 7D. SEL_ID 7E is AL_PA 00 which is not valid for an NL_Port, so is not included in the table. Also, SEL_ID 7Fh does map to a valid AL_PA; however, this 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 using a discovery process. Refer to the Fibre Channel Interface Manual for a descrip- tion of ESI operation.

9.5.11.1Parallel Enclosure Services Interface (ESI)

The parallel ESI line is an output from the drive. This line provides the enclosure with an indication of the present function of the SEL lines. A high level, the default state, indicates the drive requires address informa- tion on the SEL lines. A low level indicates the drive is attempting an ESI transfer. The enclosure may not sup- port ESI on any or all drive locations. It may only support the address function. Support of ESI is discovered by the drive. Refer to the Fibre Channel Interface Manual for a description of ESI operations.

66	Cheetah NS FC Product Manual, Rev. B

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Contents Cheetah NS FC ST3400755FC ST3300955FCPage Cheetah NS FC Product Manual, Rev. B Cheetah NS FC Product Manual, Rev. B Contents Installation Defect and error managementInterface requirements Seagate Technology support services Cheetah NS FC Product Manual, Rev. B List of Figures Page Scope Cheetah NS FC Product Manual, Rev. B Standards, compliance and reference documents StandardsElectromagnetic compatibility Electromagnetic susceptibilityCompliance Reference documents Ncits TR-19Cheetah NS FC Product Manual, Rev. B General description Standard features Media descriptionPerformance ReliabilityFormatted capacities Programmable drive capacityFactory-installed options User-installed accessoriesPerformance characteristics Internal drive characteristicsAccess time Seek performanceGeneral performance characteristics Format command execution time minutesStart/stop time Cache operation Prefetch/multi-segmented cache controlCaching write data Prefetch operation Reliability specifications Error ratesRecoverable Errors Unrecoverable ErrorsReliability and service Seek errorsInterface errors Preventive maintenance4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact MillisecondsReporting control Determining ratePredictive failures Thermal monitorState of the drive prior to testing Parameter Code DescriptionDrive Self Test DST DST failure definitionInvoking DST Short and extended testsShort test Function Code 001b Extended test Function Code 010bProduct warranty AbortShipping Product repair and return informationCheetah NS FC Product Manual, Rev. B Physical/electrical specifications AC power requirementsDC power requirements DC power requirements for ST3400755FC model Gbit AmpsGeneral DC power requirement notes DC power requirements for ST3300955FC model Gbit AmpsPower sequencing Conducted noise immunityCurrent profiles Cheetah NS FC Product Manual, Rev. B Power dissipation ST3400755 CURRENT/POWER vs Throughput FC 4GBST3400755FC Random 8 Block ReadsST3300955 CURRENT/POWER vs Throughput FC 4GB ST3300955FCEnvironmental limits TemperatureRelative humidity Package size Packaged/product weight Drop height Effective altitude sea levelShock and vibration ShockRecommended mounting Air cleanliness VibrationAcoustics Corrosive environmentX表示该部件（于同类物品程度上）所含的危险和有毒物质中国RoHS MCV标准所定义的门槛值。 China Restriction of Hazardous Substances RoHS DirectiveMechanical specifications Mounting configuration dimensionsCheetah NS FC Product Manual, Rev. B Drive internal defects/errors Defect and error managementDrive error recovery procedures 77.87 Background Media Scan FC-AL system errorsMedia Pre-Scan Deferred Auto-Reallocation Idle Read After WriteInstallation Drive ID/option selectionDrive orientation CoolingDrive mounting Air flowGrounding Cheetah NS FC Product Manual, Rev. B FC-AL features Fibre Channel link service framesLink services supported Type of frame Interface requirementsFibre Channel task management responses Fibre Channel task management functionsFC Scsi FCP response codes Function name Response code Fibre Channel port login NPort login Plogi payload BytesFibre Channel port login accept Fibre Channel Process LoginNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel Process Login Accept Fibre Channel fabric loginProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFibre Channel fabric accept login Fabric Login Accept ACC payload BytesDual port support Fibre Channel Arbitrated Loop optionsFC-AL options supported Option SupportedScsi commands supported Supported commands Command code Command nameVerify error recovery page 07h Cheetah NS FC Product Manual, Rev. B Temperature page 0Dh Inquiry data Mode Sense dataCheetah NS FC inquiry data Bytes Data hex Page Mode Sense 10 Byte Header Data Mode Data Header Miscellaneous operating features and conditions Miscellaneous featuresSupported Feature or condition Miscellaneous statusFC-AL physical interface Physical characteristicsPhysical description Electrical description Connector requirementsPin descriptions Pin Signal name Signal type FC-SCA pin descriptions Pin Signal name Signal typeFC-AL transmitters and receivers Power Fault LED OutActive LED Out Enable port bypass signalsMotor start controls Parallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesArbitrated loop physical address Alpa values SettingHex Dec TTL input characteristics Signal characteristicsDevice control codes FC Differential output LED driver signalsFC Differential input Receive eye diagram Eye diagram data values Link rate GHz Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index NumericsFAN Flogi Plogi SEL ID See also cooling

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