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PAGE\*MERGEFORMAT1 PAGE\*MERGEFORMAT8 PAGE\*MERGEFORMAT1 WhitePaperforDataProtectionwith SynologySnapshotTechnology BasedonBtrfsFileSystem TableofContents Introduction 3 DataProtectionTechnologies 4 BtrfsFileSystem SnapshotTechnology Howsharedfolderssnapshotworks CustomScriptingforSnapshot RetentionPolicy Self-ServiceRecovery IntegrateSnapshotTechnologywithSynologyApplications 8 MultipleTiersDataProtection IntegrationwithCloudStation IntegrationwithBackup&Replication Summary 11 Introduction Datalossisarealdanger,nomatterwhatstoragedeviceyouuse.Importantfiles–suchasyourbusinessfilesorcriticalworkdocuments–deserveagreatbackupstrategytoavoidunexpectedhardwarefailure,naturaldisasters,orsimpleaccidentaldeletion.LetDSMhelpwithrobustandflexibledataprotectionsituations. LowRPO(recoverypointobjective),lowperformanceimpactdataprotectionwithinstantrecoveryhasbeendesiredbyITadminsforalongtime.By2016,20%oforganizations,upfrom7%in2014,willemployonlysnapshotandreplicationtechniques,abandoningtraditionalbackup/recovery.Gartner2014MagicQuadrantforEnterpriseSoftwareandIntegratedAppliances. ThiswhitepaperisintendedforSynologycustomers,andpartnerslookingtounderstandfeaturesthatexistintheSynologyNASproductthatcanlearntheSynology’ssolutiontodataprotectionchallengesandensuremaximizeddataavailability. DataProtectionTechnologies BtrfsFileSystem SynologyhasalreadyprovidedsomeadvancedRAIDtechnologies,includingSHR(SynologyHybridRAID),RAID1,RAID5,RAID5andRAIDGroupstoensuremaximumdataavailabilityincaseofanydrivesfail.OnselectmodelsPleaserefertothecheckifBtrfsislistedassupportedfilesystemintheProductSpecificationpage. targetedforbusinessesandenterprise,anewfilesystemBtrfsisintroducedtoensurethedatacorrectnessandstrengthendataprotection. Twocopiesofmetadata-Forafilesystem,metadataiscriticalasitincludesalloftheinternaldatastructuresofthefilesystem,includingfolderstructures,filenames,permissions,checksums,andthelocationofeachfile.OnaBtrfsvolume,twocopiesofthemetadatawillbestoredontheda
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