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var data={alert:{show:false,color:'success',text:'',timeout:0,},theme:{dark:false,},nav:{showDrawer:false,showTOC:true,tocPanel:0,tab:'account',post:{discussionId:6389,currentPage:1,targetPage:1,total:8,anchor:0,goToOptions:{container:null,duration:0,easing:'easeInOutCubic',offset:-100,},worker:null,task:[],active:[],apiLock:[],originLike:new Map([]),},related:{block:1,}},search:{width:80,text:null,loading:false,},tags:[{id:34,url:'/t/0e24610c6a045c74647716303804',name:'NAS',color:'#66BB6A',icon:'mdi-nas',},],posts:[{id:76586,num:0,uid:10377,content:'玩 pt ，经常会把旧的资源删除，给硬盘腾出空间，然后下载新的资源\u003Cbr\u003E\u003Cbr\u003E开启了重复数据删除的硬盘，删除旧资源，并没有释放出很多空间出来\u003Cbr\u003E会导致硬盘占用越来越多\u003Cbr\u003E重复数据删除的原理就是把相同的数据块提取出来，多个文件共用相同的数据块，来节省硬盘空间\u003Cbr\u003E但删除了文件，这些被提取出来的数据块，即使没被使用，它也不懂得自动删除\u003Cbr\u003E导致硬盘会被这些数据块越占用越多，\u003Cbr\u003E重复数据删除不适合文件流转太大的硬盘',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 10:56:12',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76587,num:1,uid:2412,content:'你不说我都不知道 windows server 有这个功能',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 11:51:30',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76588,num:2,uid:6938,content:'因为重复数据块只保留一份，相当于就没多占空间啊，重复数据删除又怎么可能再多处空间来',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:03:47',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76589,num:3,uid:5795,content:'dedup 是让不同的文件引用同一个 extent 。当然你要是删除了这些文件中某一个，只会让共享的 extent 的引用-1 ，只有引用数清零才会真正的删除并且释放空间。\u003Cbr\u003E\u003Cbr\u003E但是，你就算不开 dedup ，其他文件该占的空间也是一样的占。\u003Cbr\u003E\u003Cbr\u003E唯一的问题可能是这种 shared extent 导致很难算清楚“我删除这些文件之后能释放多少空间”，得扫描一下文件引用的 extent 有多少是 shared 有多少是 exclusive 。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 12:16:03',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76590,num:4,uid:1100,content:'删除重复数据功能里可以设置“排除目录”的，你把资源库目录排除即可。\u003Cbr\u003E\u003Cbr\u003E关于空间没有释放的问题，可能要等下次运行“数据删除重复服务”之后才恢复吧，你可以看一下“设置删除重复计划(S)…”里配置的计划安排。',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 13:43:15',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76591,num:5,uid:2419,content:'重复数据删除默认好像是五天后才会检查吧，不是实时的',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 18:23:12',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76592,num:6,uid:14137,content:'用最新版本 ReFS 文件系统自带的重复数据删除, 就是删除文件后立即释放的.\u003Cbr\u003E\u003Cbr\u003E前几天刚把 NAS 系统升级到 Windows Server 2025. 然后把原来用的就是旧的重复文件删除,\u003Cbr\u003E顺便切换到新的 ReFS 内置的去重, 就可以做到删除立即释放\u003Cbr\u003E而且最新的 ReFS 默认已经开启块克隆 (CoW), 在同分区内复制粘贴文件瞬间完全, 也不占用额外空间',ipRegion:'',updatedByUid:0,createdAt:'2025-03-24 18:49:09',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},{id:76593,num:7,uid:7719,content:'技术原理与优化\u003Cbr\u003E在 Windows Server 中，数据去重技术的工作原理是通过识别和删除存储中的冗余部分，只保留数据的唯一副本。这项功能的主要特点包括：\u003Cbr\u003E\u003Cbr\u003E基于块的重复数据删除：通过按块对数据进行分解，然后对比不同文件或数据块的内容，找出相同的部分，删除冗余数据，只保留一个唯一的块，并通过引用方式来节省空间。\u003Cbr\u003E实时去重：数据被写入存储介质时，系统实时对数据进行重复数据删除处理。\u003Cbr\u003E可配置的去重范围：管理员可以配置去重策略，选择需要启用去重的文件夹、卷、备份目标等。\u003Cbr\u003E这些优化使得存储空间的使用效率大幅提升，并减少了硬件成本。\u003Cbr\u003E\u003Cbr\u003E去重是底层逻辑，和你应用层面有啥关系？',ipRegion:'',updatedByUid:0,createdAt:'2025-03-25 13:38:56',updatedAt:'2025-03-26 13:48:47',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},],usersMap:new 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