Seagate ST336807FC manual Drive mounting, Grounding

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8.5Drive mounting

Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface.

The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm). The following equation and paragraph define the allowable mounting surface stiffness:

K x X = F < 15lb = 67N

where K is the mounting surface 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-inch to 5.25-inch adapter frame, verify with Seagate Technology that the drive can meet the shock and vibration specifications given herein while mounted in such an adapter frame. Adapter frames that are available may not have a mechanical structure capable of mounting the drive so that it can meet the shock and vibration specifications listed in this manual.

8.6Grounding

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 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 is the system designer’s and integrator’s responsibility.

42	Cheetah 10K.7 36GB FC Product Manual, Rev. A

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Contents Cheetah 10K.7 FC Page Cheetah 10K.7 FC Page Revision status summary sheet Rev. a 05/04/05 All. Initial releaseRevision Date Sheets Affected Page Contents Installation Physical/electrical specificationsDefect and error management Interface requirementsSeagate Technology support services Viii Cheetah 10K.7 36GB FC Product Manual, Rev. a List of Figures Cheetah 10K.7 FC family disc driveCheetah 10K.7 36GB FC Product Manual, Rev. a Scope Cheetah 10K.7 FC family disc driveCheetah 10K.7 36GB FC Product Manual, Rev. a Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityElectromagnetic compliance European Union Restriction of Hazardous Substances RoHSReference documents Fibre Channel Interface ManualCheetah 10K.7 36GB FC Product Manual, Rev. a General description Standard features Media descriptionFormatted capacities PerformanceReliability Programmable drive capacityFactory-installed accessories Factory-installed optionsUser-installed accessories Performance characteristics Internal drive characteristicsST336807FC Format command execution time in minutes Seek performance characteristicsAccess time Generalized performance characteristicsStart/stop time Prefetch/multi-segmented cache controlCache operation Caching write data Prefetch operation Cheetah 10K.7 36GB FC Product Manual, Rev. a Reliability specifications Error ratesRecoverable Errors Reliability and service Hot plugging the drive 4 S.M.A.R.TControlling S.M.A.R.T Reporting control Performance impactMilliseconds Determining rateTemperature Log page 0Dh Parameter Code DescriptionDrive Self Test DST Implementation State of the drive prior to testingDST Failure Definition Invoking DSTExtended test Function Code 010b Product warrantyShort test Function Code 001b Log page entriesShipping Product repair and return informationDC power requirements Physical/electrical specificationsAC power requirements ST336807FC DC power requirementsGeneral DC power requirement notes Power sequencingConducted noise immunity Typical ST336807FC drive, 2 Gbit, +12V current profile Typical ST336807FC drive, 2 Gbit, +5V current profilePower dissipation ST336807FCRelative humidity TemperatureEnvironmental limits Effective altitude sea levelPackage size Packaged/product weight Drop height Shock and vibrationShock Recommended mounting Air cleanliness VibrationCorrosive environment Mechanical specifications AcousticsMounting configuration dimensions Defect and error management Drive internal defects/errorsDrive error recovery procedures 77.7 FC-AL system errors Background Media ScanMedia Pre-Scan Cheetah 10K.7 36GB FC Product Manual, Rev. a Installation Drive ID/option selectionLED connections Physical interface Drive Front1 J6 connector requirements Drive orientationCooling Drive mounting GroundingLink services supported FC-AL featuresFibre Channel link service frames Type of frame Link serviceFibre Channel task management responses Fibre Channel task management functionsFibre Channel Scsi FCP task management functions FC Scsi FCP response codesFibre Channel port login NPort login Plogi payloadBytes Fibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Process Login Plri payloadFibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Fabric Login Flogi payloadFibre Channel fabric accept login Fabric Login Accept ACC payloadFC-AL options supported Dual port supportFibre Channel Arbitrated Loop options Option SupportedScsi commands supported Supported commandsCommand code Supported Command name Supported commands Supported commands Supported commands Supported commands Cheetah 10K.7 FC inquiry data Mode Sense dataInquiry data Bytes Data hexPage DEF CHG Supported Feature or condition Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous statusPhysical characteristics FC-AL physical interfacePhysical description Connector requirements Part description Positions Part number FeaturesJ6 connector dimensions Electrical descriptionPin Signal name Signal type Pin descriptionsFC-SCA pin descriptions Power Fault LED OutFC-AL transmitters and receivers Active LED Out Enable port bypass signalsNormal command activity LED status Active LED Out conditionsMotor start controls Motor start control signalsParallel Enclosure Services Interface ESI 11 SEL6 through SEL0 ID linesSetting Arbitrated loop physical address Alpa valuesHex Dec Signal characteristics Differential Pecl output characteristics LED driver signalsLED drive signal Differential Pecl input characteristicsEye diagram data values Link rate GHzCheetah 10K.7 36GB FC Product Manual, Rev. a Presales Support Seagate Technology support servicesInternet MySeagate Reseller.seagate.com Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services FAX services-All Europe toll call Call center Presales and Technical Support Warranty ServiceToll-free support numbers Asia/Pacific support services Publication feedback survey Cheetah 10K.7 36GB FC Product Manual, Rev. a Index NumericsFAN Flogi PBC Page See also cooling