Virtual Machine slow to Power Up

[Gooose]

Good Afternoon,

I'm running ESX3.5 Update 4 in my development environment and have noticed that virtual machines take a while to power up.

Basically, when I select Power Up, the task details pane shows it getting to 95%, then it appears to have for approx 1-2mins and then finally powers on.

Could this problem be down to DNS resolution?

It's definitly not a resource issue on the ESX Host as this behaviour occurs when powering on the first virtual machine without any others turned on.

Any help would be greatly appreciated.

Thanks

[danm66]

It could be related to the creation of the swap file. Set a memory reservation for the full amount of configured memory and try it again. If it's quicker, then you might just have a lot of RAM assigned to the VM or seeing some storage latency.

[paul_xtravirt]

Danm66 is right - if the VM has a large amount of memory and it is creating the swap file when you start the VM then it can take a long time.

What is the Vm? How much memory have you allocated to it? Is it a member of a resource pool and if so, what configuration does the Pool have?

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[Gooose]

Hi Guys, thanks for the above responses, however I managed to resolve the problem almost immediately after creating the post.

It was 'name resolution' which sorted my problem.

Basically, I put host entries on all my ESX servers pointing to the management server, and ensured that the management server had a host entry for all the ESX Servers.

Bingo! VM's now power up immediately.

[paul_xtravirt]

Excellent - glad you got it sorted

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