Re: [Vserver] [ Re: [Users] VServer vs OpenVZ]

From: Kir Kolyshkin <>
Date: Wed 07 Dec 2005 - 06:15:54 GMT
Message-ID: <>

Rik Bobbaers wrote:

>stable: yes, secure... well... as far as possible, BUT!
>multipath using devicemapper in their kernel? almost impossible, unless the
>backported that entirely from 2.6.13 (of some 2.6.12 rcX)
>a lot of other enhancements in 2.6.8+ kernels... it's for a reason that
>kernels get updated, you know...
Current OpenVZ kernel has more than 200 patches backported from mainstream.

>>Second is resource management. There are a lot of resources that can be
>>abused from inside VServer guest or OpenVZ VPS, leading to at least DoS;
>>some of those resources are not under control of traditional UNIX means
>>such as ulimit. In OpenVZ we have User Beancounters (UBC for short),
>>which accounts and limits about 20 of such resources (including IPC
>>objects, various kernel buffers etc).
>there is a decent resource management in vserver too... it's not easy at all
>to dos an entire vserver. (you have rlimits map for every vserver if you
>want, where you can choose what the limits are)
I am really interested in comparison of OpenVZ's and VServer's resource
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Received on Wed Dec 7 06:18:23 2005

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