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hardware_failure
[H]ard|Gawd
- Joined
- Mar 21, 2008
- Messages
- 1,370
I have been working with Hyper-V alot on 2012 (non-core, full version)
Dynamic memory is an awesome thing... when it works.
I have noticed alot of inconsistent results when assigning VM's dynamic memory. For example, I have 5 win7pro 32bit VM's. 2 of them work beautifully with dynaimc memory, 3 of them do not, ie I will give one of the three 2048 startup ram, 512 minimum and 4096 max. They never ever change from 2048. Everything has the most current integration services installed. I have one win732bit that is an almost bare install, just office and 2 apps on it (for testing) and it never drops below 2048, its pretty much always at 0% cpu and it says its only using 22% of its allocated ram. Yet I have another win732 box with the exact same settings running tons of stuff and it throttles down to ~1900MB of ram all the time. I have tried all kinds of different combinations of startup/min/max ram. I also have a handfull of 2003 VMs, 1 of 4 does not seem to work with dynamic memory. Also, if I assign a startup of 512 and a dynamic max to 4096, the problem VM's be stuck at 512, so essentially I think they are being stuck at the startup ammount and not working with dynamic memory allocation.
Long story short - what would cause a VM on 2012 hyperV to not work with / use dynamic memory?
Thanks for any feedback.
Dynamic memory is an awesome thing... when it works.
I have noticed alot of inconsistent results when assigning VM's dynamic memory. For example, I have 5 win7pro 32bit VM's. 2 of them work beautifully with dynaimc memory, 3 of them do not, ie I will give one of the three 2048 startup ram, 512 minimum and 4096 max. They never ever change from 2048. Everything has the most current integration services installed. I have one win732bit that is an almost bare install, just office and 2 apps on it (for testing) and it never drops below 2048, its pretty much always at 0% cpu and it says its only using 22% of its allocated ram. Yet I have another win732 box with the exact same settings running tons of stuff and it throttles down to ~1900MB of ram all the time. I have tried all kinds of different combinations of startup/min/max ram. I also have a handfull of 2003 VMs, 1 of 4 does not seem to work with dynamic memory. Also, if I assign a startup of 512 and a dynamic max to 4096, the problem VM's be stuck at 512, so essentially I think they are being stuck at the startup ammount and not working with dynamic memory allocation.
Long story short - what would cause a VM on 2012 hyperV to not work with / use dynamic memory?
Thanks for any feedback.
I knew that was something else I forgot.