Dynamic Memory was added in W2008 R2 SP1 to allow Hyper-V to manage the assignment of memory to enabled virtual machines based on the guest OSs demands. Today in WS2012 R2, a VM boots up with a start-up amount of RAM, can grow, based on in-guest pressure and host availability, up to the maximum amount allowed by the host administrator, and shrink to a minimum amount.<\/p>\n
But what if we need more flexibility? Not all workloads are suitable for Dynamic Memory. And in my estimation, only about half of those I encounter are using the feature.<\/p>\n
The next version of Hyper-V includes hot memory resizing. This allows you to add and remove memory from a running virtual machine. The operation is done using normal add\/remove administration tools. Some notes:<\/p>\n
This new feature will save a lot of downtime for virtualised services when administrators\/operators need to change the memory for a production VM. I also wonder if it might lead to a new way of implementing Dynamic Memory.<\/p>\n
Dynamic Memory was added in W2008 R2 SP1 to allow Hyper-V to manage the assignment of memory to enabled virtual machines based on the guest OSs demands. Today in WS2012 R2, a VM boots up with a start-up amount of RAM, can grow, based on in-guest pressure and host availability, up to the maximum amount … Continue reading “Windows Server Technical Preview – Hot Memory Resizing”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[181,195,137],"class_list":["post-17770","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-virtualisation","tag-windows-server-2016"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t