Seagate ST936751FC manual FC-AL physical interface, Physical characteristics, Physical description

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9.5FC-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 provided within this section. The operational aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual..

Figure 14. Physical interface

9.5.1Physical characteristics

This section defines physical interface connector.

9.5.1.1Physical description

FIbre Channel drives may be connected in a loop together or with other compatible FC-AL devices. 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 unpopulated locations or removed from the loop with loop operation recovery after a brief interruption. These PBCs are located external to the FC-AL device. Figure 15 shows the relationship between the PBC and FC-AL device.

From Previous

Drive

Port Bypass

Circuit N–1

Drive N–1

Port Bypass

Circuit

	To Next
MUX	Drive	Port Bypass
MUX		Port Bypass
		Circuit N+1




Select
Serial	Serial			Drive N+1
In	Out			Drive N+1
In	Out
Drive N

Figure 15. Port bypass circuit physical interconnect

Savvio 15K.1 FC Product Manual, Rev. B

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Contents ST973451FC ST936751FC Savvio 15K.1 FCPage Contents Defect and error management Physical/electrical specificationsInstallation Interface requirementsSeagate Technology support services Savvio 15K.1 FC Product Manual, Rev. B List of Figures Page Savvio 15K.1 family disc drive ScopeSavvio 15K.1 FC Product Manual, Rev. B Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Ncits TR-19 Reference documentsSavvio 15K.1 FC Product Manual, Rev. B General description Standard features Performance Media descriptionReliability Formatted capacitiesProgrammable drive capacity Factory-installed accessoriesOptions Internal drive characteristics Performance characteristicsSeek performance characteristics Access timeStart/stop time Format command execution timeGeneral performance characteristics Caching write data Prefetch/multi-segmented cache controlCache operation Prefetch operation Recoverable Errors Reliability specificationsError rates Unrecoverable Errors Reliability and serviceSeek errors Interface errorsControlling S.M.A.R.T Hot plugging the drive4 S.M.A.R.T Reporting control Performance impactDetermining rate Predictive failuresParameter Code Description Temperature Log Page 0DhDrive Self Test DST DST failure definitionImplementation State of the drive prior to testingInvoking DST Short and extended testsLog page entries Product warrantyAbort ShippingProduct repair and return information DC power requirements Physical/electrical specificationsAC power requirements General DC power requirement notes Conducted noise immunity Power sequencingCurrent profiles +5V +12VTypical ST936751FC drive +12V and +5V current profiles ST973451FC Power dissipationCURRENT/POWER vs Throughput FC 1GB Random 8 Block Reads CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads ST936751FC FC CURRENT/POWER vs Throughput FC 1GB Random 8 Block ReadsEnvironmental limits TemperatureFC CURRENT/POWER vs Throughput FC 4GB Random 8 Block Reads Effective altitude sea level Relative humidityShock and vibration ShockPackage size Packaged/product weight Drop height Recommended mounting Corrosive environment Air cleanlinessVibration Acoustics Drive dimensions inches Mechanical specificationsDrive error recovery procedures Defect and error managementDrive internal defects/errors FC-AL system errors Deferred Auto-Reallocation Background Media ScanMedia Pre-Scan Idle Read After Write Cooling InstallationDrive orientation Grounding Drive mountingFibre Channel link service frames FC-AL featuresLink services supported Type of frame Interface requirementsFibre Channel task management responses Fibre Channel task management functionsFibre Channel Scsi FCP task management functions Task name SupportedNPort login Plogi payload Bytes Fibre Channel port loginFibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFabric Login Accept ACC payload Bytes Fibre Channel fabric accept loginFibre Channel Arbitrated Loop options Dual port supportFC-AL options supported Option SupportedSupported commands Command code Command name Scsi commands supportedDisconnect/reconnect control page 02h Savvio 15K.1 FC Product Manual, Rev. B LBdata Supported commands Command code Supported 4 Command name Savvio inquiry data Bytes Data hex Inquiry dataMiscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous statusPhysical description Physical characteristicsFC-AL physical interface Electrical description Connector requirementsPart description Positions Part number Features Pin descriptions FC-SCA pin descriptions Pin Signal name Signal typePin Signal name Signal type FC-AL transmitters and receivers PowerFault LED Out Motor start controls Enable port bypass signalsActive LED Out 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESIHex Dec SettingArbitrated loop physical address Alpa values Device control codes Signal characteristicsTTL input characteristics Differential Pecl input Differential Pecl outputSavvio 15K.1 FC Product Manual, Rev. B Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Numerics IndexFAN Page Plogi SEL ID See also cooling