Avid Technology Unity MediaNetwork PortServer Manuel d'utilisateur télécharger pdf (Page 20)

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Unity™MediaNetwork5SystemMaintenance

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Appendix 5 - Making a Metadata back-up

EarlierversionsofAvid®Unity™MediaNetworkemployedamechanismwherebythemetadata(the

informationdescribingthelocationofallfilesstoredontheDataDriveSet)wasperiodicallywrittentothe

datadrivesthemselves.

Inordertomaximisemediaread/writeperformance,MediaNetwork5insteads avesthreeindividualcopiesof

themetadata

toaseparatepartitionontheinternalsystemdrivewhichisaredundantmirroredpairofdriv es

controlledbyahardwareRAIDcontroller.Thispartitionismountedas“AVIDO NLY”intherootoftheD:drive

asshowninFig.20below:



Fig.20–The“AVIDONLY”metadatapartition

Foradditionaldatasecurityitmaybedesirabletotakeacopyofthesethreefilestoanexternaldeviceatthe

endofeveryday’swork.Shoulditthenhappenthatthemetadataislostthroughinternalhard‐drivefailure

(althoughpreventativemaintenanceasdescribedinCheckinternalRAIDintegrity

aboveshouldreducethis

risktopracticallyzero)nomorethanaday’sworkwouldbelost.

Inordertocopythesefiles, theFileManagerservicemustfirstbestopped.Thisnotonlyallowsaccesstothe

filesbutalsoensuresthatallmetadatainformationhasbeenwrittento

them.TheFile Managerservicemay

bestoppedandstartedeasilyfromthefirsttabofthemonitorto olasdescribedinRebootingtheMediaEngine



above.

Oncethefilemanagerservicehasbeenstopped,thefilesmaybedraggedanddroppedontoanexternal

devicesuchasaUSBflashdriveoraremotenetworklocation.

Shoulditeverbenecessarytorestorethemetadatafromthesefilesfollowingacatastrophi cinternaldrive

failure,please

contactAvidCustomerSuccessforassistance.



Avid

Unity™MediaNetwork5SystemMaintenance

SimonDorricott‐SharedStorageTechnicalLead

AvidCustomerSuccessEMEA

February2011

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Avid Technology Unity MediaNetwork PortServer Manuel d'utilisateur Page 20