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Windows Server Hyper-V Core 2019 - Host Hogging 100% RAM


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0















Windows Server Hyper-V Core 2019 - Host Hogging 100% RAM



I have a server which has windows server datacentre 2019 installed as a core which is running the Hyper-V role with containers and this is all it does, now I have 10 VM with a combined RAM allocation of 28GB and the server as 40GB installed.



For the life of me I cannot see or understand how the host is using all the remaining RAM it madness. Can some please help me to understand and reduce the overhead for the host server.



I though it might be dynamic allocation of RAM so I have changed 8 servers to static ram basically turning off dynamic RAM and so the RAM cannot flux so hoping that this will reduce the overhead as ther i snothing to save for the reserve also, however to no avail. I'm at a loss.



I have only two servers using dynamic ram with start-up 2GB min 1GB and Max 2GB so can never go over the threshold of 2GB of Ram as predefined by the Max allocation and I kept these like this to see if it has in impact and the answer is no.



CPU utilization is basically 0% with all VM's allocated with 2 cores and he CPUs never touch 5%, sweet it just this blasted RAM at 100%



Physical Server: image below for specs (using Windows Admin Centre)
Windows Admin Centre Displaying 100% RAM usage on host server










share|improve this question









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  • does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

    – CorpCaleCeo
    2 hours ago


















0















Windows Server Hyper-V Core 2019 - Host Hogging 100% RAM



I have a server which has windows server datacentre 2019 installed as a core which is running the Hyper-V role with containers and this is all it does, now I have 10 VM with a combined RAM allocation of 28GB and the server as 40GB installed.



For the life of me I cannot see or understand how the host is using all the remaining RAM it madness. Can some please help me to understand and reduce the overhead for the host server.



I though it might be dynamic allocation of RAM so I have changed 8 servers to static ram basically turning off dynamic RAM and so the RAM cannot flux so hoping that this will reduce the overhead as ther i snothing to save for the reserve also, however to no avail. I'm at a loss.



I have only two servers using dynamic ram with start-up 2GB min 1GB and Max 2GB so can never go over the threshold of 2GB of Ram as predefined by the Max allocation and I kept these like this to see if it has in impact and the answer is no.



CPU utilization is basically 0% with all VM's allocated with 2 cores and he CPUs never touch 5%, sweet it just this blasted RAM at 100%



Physical Server: image below for specs (using Windows Admin Centre)
Windows Admin Centre Displaying 100% RAM usage on host server










share|improve this question









New contributor




CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

    – CorpCaleCeo
    2 hours ago
















0












0








0








Windows Server Hyper-V Core 2019 - Host Hogging 100% RAM



I have a server which has windows server datacentre 2019 installed as a core which is running the Hyper-V role with containers and this is all it does, now I have 10 VM with a combined RAM allocation of 28GB and the server as 40GB installed.



For the life of me I cannot see or understand how the host is using all the remaining RAM it madness. Can some please help me to understand and reduce the overhead for the host server.



I though it might be dynamic allocation of RAM so I have changed 8 servers to static ram basically turning off dynamic RAM and so the RAM cannot flux so hoping that this will reduce the overhead as ther i snothing to save for the reserve also, however to no avail. I'm at a loss.



I have only two servers using dynamic ram with start-up 2GB min 1GB and Max 2GB so can never go over the threshold of 2GB of Ram as predefined by the Max allocation and I kept these like this to see if it has in impact and the answer is no.



CPU utilization is basically 0% with all VM's allocated with 2 cores and he CPUs never touch 5%, sweet it just this blasted RAM at 100%



Physical Server: image below for specs (using Windows Admin Centre)
Windows Admin Centre Displaying 100% RAM usage on host server










share|improve this question









New contributor




CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












Windows Server Hyper-V Core 2019 - Host Hogging 100% RAM



I have a server which has windows server datacentre 2019 installed as a core which is running the Hyper-V role with containers and this is all it does, now I have 10 VM with a combined RAM allocation of 28GB and the server as 40GB installed.



For the life of me I cannot see or understand how the host is using all the remaining RAM it madness. Can some please help me to understand and reduce the overhead for the host server.



I though it might be dynamic allocation of RAM so I have changed 8 servers to static ram basically turning off dynamic RAM and so the RAM cannot flux so hoping that this will reduce the overhead as ther i snothing to save for the reserve also, however to no avail. I'm at a loss.



I have only two servers using dynamic ram with start-up 2GB min 1GB and Max 2GB so can never go over the threshold of 2GB of Ram as predefined by the Max allocation and I kept these like this to see if it has in impact and the answer is no.



CPU utilization is basically 0% with all VM's allocated with 2 cores and he CPUs never touch 5%, sweet it just this blasted RAM at 100%



Physical Server: image below for specs (using Windows Admin Centre)
Windows Admin Centre Displaying 100% RAM usage on host server







windows memory virtualization windows-server-2016






share|improve this question









New contributor




CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




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edited 55 mins ago









aybiss

31




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asked 3 hours ago









CorpCaleCeoCorpCaleCeo

11




11




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New contributor





CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






CorpCaleCeo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

    – CorpCaleCeo
    2 hours ago





















  • does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

    – CorpCaleCeo
    2 hours ago



















does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

– CorpCaleCeo
2 hours ago







does this install on the host or any computer use the hostname to connect and a link would be nice, thanks. update this run on the machine in question with a GUI so i'm using server core as specified so cannot use as not GUI will display on the server core host server and you cannot use it to connect to another computer. uhhhmm

– CorpCaleCeo
2 hours ago












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