Hyper-V Backup Solution<\/a>, I stated that the time taken for subsequent backups was comparable to the initial backup.<\/p>\nWell, I think I have found a solution to get it to do the fast differential backups that transfer only changed blocks to the backup device!<\/p>\n
On your server, run Windows Explorer, and for each volume that you’ll be backing up, right click on the volume and select “Configure shadow copies”, and click “Enable”. If you do this for each volume, this turns on automatic shadow copy creation. This also seems to have the effect of enabling persistent shadow copies, which enables Windows Server Backup to perform the fast differentials.<\/p>\n
On our test server, where we have approx. 232GB of data on our Server 2008 \/ Hyper-V Role machine, backups were taking around 57 minutes before the change (see below). However, after the change, the backup time was slashed to around 3 minutes!<\/p>\n
We’re going to continue testing to establish exactly what was causing the slowdown in the first place, as it seems to be specific to Hyper-V. But in the meantime, everyone can now enjoy fast differential backups of Hyper-V servers!<\/p>\n
Enjoy<\/p>\n
Linus<\/p>\n","protected":false},"excerpt":{"rendered":"
Hi all, As stated in a previous blog post, Hyper-V Backup Solution, I stated that the time taken for subsequent backups was comparable to the initial backup. Well, I think I have found a solution to get it to do the fast differential backups that transfer only changed blocks to the backup device! On your … Read more Hyper-V and Windows Server Backup – getting it to run fast<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":13831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,3,760],"tags":[],"class_list":["post-69","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev","category-support","category-legacy"],"yoast_head":"\nHyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog\" \/>\n<meta property=\"og:description\" content=\"Hi all, As stated in a previous blog post, Hyper-V Backup Solution, I stated that the time taken for subsequent backups was comparable to the initial backup. Well, I think I have found a solution to get it to do the fast differential backups that transfer only changed blocks to the backup device! On your ... Read more Hyper-V and Windows Server Backup – getting it to run fast\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\" \/>\n<meta property=\"og:site_name\" content=\"Cyber Resilience Blog\" \/>\n<meta property=\"article:published_time\" content=\"2009-03-17T20:50:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-11-20T01:05:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png\" \/>\n\t<meta property=\"og:image:width\" content=\"842\" \/>\n\t<meta property=\"og:image:height\" content=\"596\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Linus Chang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Linus Chang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\"},\"author\":{\"name\":\"Linus Chang\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/523a9a01769da254de228dbd4b1328d3\"},\"headline\":\"Hyper-V and Windows Server Backup – getting it to run fast\",\"datePublished\":\"2009-03-17T20:50:45+00:00\",\"dateModified\":\"2019-11-20T01:05:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\"},\"wordCount\":208,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png\",\"articleSection\":[\"Developer\",\"Support\",\"Z-Legacy\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\",\"url\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\",\"name\":\"Hyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png\",\"datePublished\":\"2009-03-17T20:50:45+00:00\",\"dateModified\":\"2019-11-20T01:05:13+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage\",\"url\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png\",\"contentUrl\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png\",\"width\":842,\"height\":596},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.backupassist.com\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hyper-V and Windows Server Backup – getting it to run fast\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#website\",\"url\":\"https:\/\/www.backupassist.com\/blog\/\",\"name\":\"Cyber Resilience Blog\",\"description\":\"Protect Your Cloud Data with BackupAssist\",\"publisher\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.backupassist.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#organization\",\"name\":\"Cyber Resilience Blog\",\"url\":\"https:\/\/www.backupassist.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2019\/09\/BA-Logo-Full-Logo.svg\",\"contentUrl\":\"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2019\/09\/BA-Logo-Full-Logo.svg\",\"caption\":\"Cyber Resilience Blog\"},\"image\":{\"@id\":\"https:\/\/www.backupassist.com\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/523a9a01769da254de228dbd4b1328d3\",\"name\":\"Linus Chang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/58a69ed0d0b9928d91dec6132dccfb646cc4230839af779f185531c722b0d017?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/58a69ed0d0b9928d91dec6132dccfb646cc4230839af779f185531c722b0d017?s=96&d=mm&r=g\",\"caption\":\"Linus Chang\"},\"description\":\"*Founder & Creator, BackupAssist* Linus Chang has been writing software since he was eight years old. He founded BackupAssist in 2002 \u2014 making him one of the longest-standing voices in Windows backup and data protection \u2014 and has spent the decades since talking to IT administrators around the world about what actually goes wrong, and why. His interest in data loss isn't abstract. Early in his career, he was working at the Monash University help desk when a student came in with a floppy disk that wouldn't read. They tried everything. None of their drives could read it either. The disk held her entire PhD dissertation \u2014 years of work \u2014 and it was the only copy. She broke down in tears. There was nothing he could do. Five years later, he wrote the first version of BackupAssist. Linus holds a Bachelor of Science in Computer Science and has held Microsoft Certified Solution Developer and Sun Certified Java Programmer credentials. More recently, he has completed digital forensics and cyber-security courses through the Black Hat Conference. He has spoken on information security and cryptography at Infosecurity Europe, addressed politicians and policymakers at Australian Parliament House, presented to SMB IT administrators at the IT Pro Experts Conference, and served as a guest lecturer to Cyber Security master's students at the University of Melbourne. On this blog, Linus writes about backup strategy and the technical side of cyber-resilience \u2014 drawing on 24 years of product development and direct conversation with the IT professionals BackupAssist is built for. [Connect with Linus on LinkedIn](https:\/\/www.linkedin.com\/in\/linuschang\/)\",\"url\":\"https:\/\/www.backupassist.com\/blog\/author\/linus-chang\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast","og_locale":"en_US","og_type":"article","og_title":"Hyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog","og_description":"Hi all, As stated in a previous blog post, Hyper-V Backup Solution, I stated that the time taken for subsequent backups was comparable to the initial backup. Well, I think I have found a solution to get it to do the fast differential backups that transfer only changed blocks to the backup device! On your ... Read more Hyper-V and Windows Server Backup – getting it to run fast","og_url":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast","og_site_name":"Cyber Resilience Blog","article_published_time":"2009-03-17T20:50:45+00:00","article_modified_time":"2019-11-20T01:05:13+00:00","og_image":[{"width":842,"height":596,"url":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png","type":"image\/png"}],"author":"Linus Chang","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Linus Chang","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#article","isPartOf":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast"},"author":{"name":"Linus Chang","@id":"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/523a9a01769da254de228dbd4b1328d3"},"headline":"Hyper-V and Windows Server Backup – getting it to run fast","datePublished":"2009-03-17T20:50:45+00:00","dateModified":"2019-11-20T01:05:13+00:00","mainEntityOfPage":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast"},"wordCount":208,"commentCount":1,"publisher":{"@id":"https:\/\/www.backupassist.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage"},"thumbnailUrl":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png","articleSection":["Developer","Support","Z-Legacy"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast","url":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast","name":"Hyper-V and Windows Server Backup - getting it to run fast - Cyber Resilience Blog","isPartOf":{"@id":"https:\/\/www.backupassist.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage"},"image":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage"},"thumbnailUrl":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png","datePublished":"2009-03-17T20:50:45+00:00","dateModified":"2019-11-20T01:05:13+00:00","breadcrumb":{"@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#primaryimage","url":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png","contentUrl":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2008\/05\/tile-placeholder1-01.png","width":842,"height":596},{"@type":"BreadcrumbList","@id":"https:\/\/www.backupassist.com\/blog\/hyper-v-and-windows-server-backup-getting-it-to-run-fast#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.backupassist.com\/blog"},{"@type":"ListItem","position":2,"name":"Hyper-V and Windows Server Backup – getting it to run fast"}]},{"@type":"WebSite","@id":"https:\/\/www.backupassist.com\/blog\/#website","url":"https:\/\/www.backupassist.com\/blog\/","name":"Cyber Resilience Blog","description":"Protect Your Cloud Data with BackupAssist","publisher":{"@id":"https:\/\/www.backupassist.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.backupassist.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.backupassist.com\/blog\/#organization","name":"Cyber Resilience Blog","url":"https:\/\/www.backupassist.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.backupassist.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2019\/09\/BA-Logo-Full-Logo.svg","contentUrl":"https:\/\/www.backupassist.com\/app\/uploads\/sites\/3\/2019\/09\/BA-Logo-Full-Logo.svg","caption":"Cyber Resilience Blog"},"image":{"@id":"https:\/\/www.backupassist.com\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/523a9a01769da254de228dbd4b1328d3","name":"Linus Chang","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.backupassist.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/58a69ed0d0b9928d91dec6132dccfb646cc4230839af779f185531c722b0d017?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/58a69ed0d0b9928d91dec6132dccfb646cc4230839af779f185531c722b0d017?s=96&d=mm&r=g","caption":"Linus Chang"},"description":"*Founder & Creator, BackupAssist* Linus Chang has been writing software since he was eight years old. He founded BackupAssist in 2002 \u2014 making him one of the longest-standing voices in Windows backup and data protection \u2014 and has spent the decades since talking to IT administrators around the world about what actually goes wrong, and why. His interest in data loss isn't abstract. Early in his career, he was working at the Monash University help desk when a student came in with a floppy disk that wouldn't read. They tried everything. None of their drives could read it either. The disk held her entire PhD dissertation \u2014 years of work \u2014 and it was the only copy. She broke down in tears. There was nothing he could do. Five years later, he wrote the first version of BackupAssist. Linus holds a Bachelor of Science in Computer Science and has held Microsoft Certified Solution Developer and Sun Certified Java Programmer credentials. More recently, he has completed digital forensics and cyber-security courses through the Black Hat Conference. He has spoken on information security and cryptography at Infosecurity Europe, addressed politicians and policymakers at Australian Parliament House, presented to SMB IT administrators at the IT Pro Experts Conference, and served as a guest lecturer to Cyber Security master's students at the University of Melbourne. On this blog, Linus writes about backup strategy and the technical side of cyber-resilience \u2014 drawing on 24 years of product development and direct conversation with the IT professionals BackupAssist is built for. [Connect with Linus on LinkedIn](https:\/\/www.linkedin.com\/in\/linuschang\/)","url":"https:\/\/www.backupassist.com\/blog\/author\/linus-chang"}]}},"_links":{"self":[{"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/posts\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":3,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/posts\/69\/revisions"}],"predecessor-version":[{"id":14591,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/posts\/69\/revisions\/14591"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/media\/13831"}],"wp:attachment":[{"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/media?parent=69"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/categories?post=69"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.backupassist.com\/blog\/wp-json\/wp\/v2\/tags?post=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}