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Re: Is OpenVZ really flexible on overseling? [message #50682 is a reply to message #50679]

Thu, 10 October 2013 21:30

Ales
Messages: 330
Registered: May 2009

Senior Member

You can oversell anything you want, until your customers start knocking on your doors... Confused

It's up to you to keep the quality of the service at an acceptable level, but technically speaking:

- I wouldn't oversell the disk space, this can lead to catastrophic failures
- I wouldn't oversell RAM + vSwap over your actual RAM + Swap size.

An example: a hardware node with 64 GB RAM and 66 GB Swap gives you 130 GB "RAM/vSwap" to commit to VMs, in theory (minus some for the HN itself). But I wouldn't do it... As soon as your HN starts swapping, your QOS will go down the drain.

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[Message index]

		Is OpenVZ really flexible on overseling? By: postcd on Tue, 08 October 2013 21:04
		Re: Is OpenVZ really flexible on overseling? By: Ales on Thu, 10 October 2013 21:30
		Re: Is OpenVZ really flexible on overseling? By: postcd on Fri, 11 October 2013 07:34
		Re: Is OpenVZ really flexible on overseling? By: postcd on Fri, 11 October 2013 13:14
		Re: Is OpenVZ really flexible on overseling? By: dipps on Sat, 12 October 2013 00:09
		Re: Is OpenVZ really flexible on overseling? By: postcd on Sat, 12 October 2013 16:39
		Re: Is OpenVZ really flexible on overseling? By: Ales on Fri, 11 October 2013 12:40
		Re: Is OpenVZ really flexible on overseling? By: Ales on Sat, 12 October 2013 22:24

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