________________________________________ ServerRack(also known ashosttables)andtheaccompanying accessoriesareessentialsto bringsuccess toyourcompany,because theygiveyoucompanywherethestoragedevicesservemajoractivityofthecompany.Therefore,the choice ofhosttablesandmatching accessoriesmakereasonablepower supply, coolingandmaximum protectionforthedevice,all operations arecontinuous operationand stablebyminimizingdowntimeandhelpingto manage,andorganizedata centersmoreefficient.Here,3C Electricpleaseprovide additional5things youneed tokeep in mind whenselectinga serverbuytables:
1.Selected from theappropriatesize:
Pleaseselectthe appropriatecupboardspaceto storeallofyourexisting equipmentandmake sure thatyouchoose hasenoughclosetspaceforexpansion plansinthe future,as wellasthe purchase ofadditionalequipmentbeyondtheexpected.Casesdevicesis measuredby the standards ofthe Associationof Electronics Industrysectors(ElectronicIndustriesAlliance-EIA),known as"cabinetunit"(RackUnits)or"U".1Unitcabinetby1.75"height. Please notethespaceforparts, suchastheadjustment ofenvironmentalequipmentcabinets,equipmentcontrolpowermanagement,LCDscreensandbatteryreserveswhen needed.For example,ifyou needspacelocated202Uservertype,youcanchoose the cabinetheightis44Utoputallthepartsareattachedassocket1U,2Uoranelectric charge.Inside heightofcabinetis measuredfromthe highest pointtothe bottompointofthe bottom ofthe cabinet;inside thecabinetdepthis measuredfrom the insideofthe2doors,front and rear;cabinetwidthwillbemeasuredfrom the panelto the otherside. Make surethattheoutside dimensionsof the cabinetcan beplacedinthe pantryspace,check to see ifit canbepassed throughall thedoorsornot,andmake sure thatyouwillspenda gapsuitable forreplacingcabinetsmeet thesafetyrules.Please notethatthese techniquesalwaysuseproperinstallation ofcabinetsincludingthe use ofheavy equipmentbottomof the cabinettoavoidtheheavyshelvingabove, determinebeforethe device you wantplacedin the frontandback of thecabinet(basedonthe number of timesyouadd orremovedevicesinthe cabinet),plus youalsoneed toaddaninstallationto supportyourheavy equipmentand/orhighabove.
2.Safetymeasuresforcabinets:
Theappropriatesafetyare essentialforallactivitiesas wellasthe operation ofyour device.Sounderstandyour servertablessuitable forthe entiresecurity strategyishowvery important.There are severalmethodsto help you improvethesecurity oftheservertablesand other equipmentinyourdatacenter. Let's startfromthenotetothepurchaseoftablesthe server haslockson both thefront and reardoors,Electriccurrent3Chas a lotof blood fromtheselectionprovided.Next,usingenvironmental controlequipmenttocontrolenvironmentalinitiativeinyourcloset.Also,allowsadministrators tocontrolcontinuousamperageoneachcircuit,drainage,temperatureandother changes,thensendautomatedmessagesviaSMTP/SMS,SNMPwhentheconditionsexceedsthepredefinedthreshold,anumber ofenvironmental controldeviceswithsensing elementonclosingoropeningthedoorto helpcommonconditionsandcanalertadministratorswhenawingopenthe door. (Whenacabinetchangeinrelation tothe appearanceofthethresholdhasbeen determined,thisdevicewill report"error").In addition,there arealsodevicesavailableto work withcamerasandsensing elementenablesadministrators tocontinuouslycontrolthecabinetandthecabinetroomservers,as wellasthesoundrecordingbar.Ifyou areplanninganewdatacenter,youalsoneed to payattention tothephysical securitymethods, suchas:buildingremotedatacenterwithmain roads,limitedwindowindatacenter, installingsecuritydoors.
3.Choose fromis designedtofityour requirements:
Mostmanufacturerswill givecustomersa lot ofoptionsso they canchoosetheservertablesto meet thespecific requirementsincabinetinstallationenvironment.Here aresomeparts of thecabinetsyouneed tokeep in mindwhen choosing:
Shelf:
Thesupplierselectionsincesomeserversincludingracksfixedoradjustableframewith4 points,thecabinetshaveslidingpanelframe2 pointsclearof the poresandresistant toheavyorthekneelinglegshelf,shelfandmiddleman.Chooseshelfdepthis6inchesless than the totaldepthof the cabinet-for example,ifyouselectcabinets30inchesdeep, theshelveshave a depthof 24inches.
Thepanelplaced aboveorbeside:
Thetop of the cabinetpanelsprotectequipmentfromtheoutsidematerial.Optionsincludeperforatedfor ventilationslots,the slotsconduitforcable managementand installation ofadditionalventilators.Thesidepanelsforprotection andare often availableasan option:fixedtable,movingtable,tablewithvents(louvered).
Theslidingtray:
Mostcabinetsare supplied with2sets ofslidingtray.However,theslidingtrayaddmay be necessaryto accommodatethedifferentdepthandhelpthecabinetassemblyandtransporteasier.Mostmanufacturersallowyou to choosefromtheversatileslidingtray(squareholesfittedwithcagenuts).Themultipurposetraywillslide19incheswidesupportinstallation ofnetwork equipmentandserversall equipment.EIAstandardslidingtrayensures19incheswidthfor installation ofnetwork equipmentand someequipmentintheserver roomcabinetmanufacturers.Theslidingtrayis usuallythe standardsquareholeANSI/EIA-310-D(1992).Mostaccessoriesmanufacturersareaware thattheslidetraywillhavesquare holesformountingnuts,wholeblood from thecurrentslidetraysareusedwithsquareholes.
The cabinet:
The choicesavailableincludefootcabinetcabinetfoottypecan fightdownto stabilizethe cabinetincasethe cabinetis assembledso heavy,thewheelis attached to thebottom of thetablesto supporthostmigrationcabinets;most types ofservercabinetsshould bemountedwheelto ensurethatthe cabinetcanbe movedeasily.
4.Noticetothelatestpower engineering:
Distribution cabinetsare usedto distributepowertotheserverthroughelectric wires.Thepower transmission lineisspecifically designedforservercabinetsandmountingpointsonthe rooforbehindthecabinets.Thepower linesare generally divided intotwocategories:standard andhightechnologies. Whilestandard powerstripscanprovidevaluable information,such asthereplacementfuseindicator, showingtheoperatingparameters,andthisinformationneeds tobepersonalizedandmanaged on thewebsite.In contrast,thehigh-techpower stripcontrollerremotepower supply, allowingtheadministratorto resolve the problemrestarttheserverandthedevice,as wellastheproblems that occurfromanylocationsetpointserverwithaninternetconnection, in addition tohigh-techpowerstripreducesserverdowntimeandrecoveroperationsquickly. Theelectrical controlproductsnotonlyprovideintelligentpowercontrolsystem,whichalso allowstheadministratorto make the mostprogressintheelectricaldistribution, suchas3-phase powersource. 3-phasepower sourceexcepttheproductpowermanagementcontrol,butmanypossible solutionsandactivitiesassociated withit.Compared withsingle-phasepower supply,power supply3-phasecircuitusinglessthan,providesmore balancedpowerload,helpingto reduce the totalpowerrequired forthedistribution ofelectrical appliances,andsignificant increase inamperagetablesavailableontheserver. For example,ina traditionalenvironmentcabinet,4power supplycircuit20Awillbeavailable64A(assuming thatthe maximumload capacityis80%).In contrast,3-phasepower supplycan deliverup to51.6Apercircuit,82Aormorewithpoweravailable,as weonly need to use2circuits(witha maximumload capacityis80%). Alsouse3 phasepoweralsosavescosts,especially whenthe experts haveestimated that,infutureelectricitycostscould riseas much as 10times thecurrent orpowerfortheinformation technologywill be lessthanabout 20to 30%.Factorsrelated tothe power supplyshouldbe noted,including the number ofsocketsyouneedandthe requirements forstandby powerrequirementsas wellascharged.
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