OSS Virtualization options ...
Marc G. Fournier
freebsd at hub.org
Thu Dec 20 05:57:14 PST 2007
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- --On Thursday, December 20, 2007 14:57:41 +0200 Nikos Vassiliadis
<nvass at teledomenet.gr> wrote:
> Mark, what do you need to virtualize and what your requirements are?
As mentioned in my original, we provide VPS hosting, so we're virtualizating
the whole virtual machine ...
> I think the question about virtualization is far too broad.
> For example, you mentioned quotas. I think you can bypass storage
> control problems, using seperate devices for each client filesystem.
> Just create n vnode md(4) devices for your n jails. This has another
> advantage besides partitioning storage. Since UFS supports sparse
> files, only used blocks will occupy storage space, thus you don't
> have to preallocate all storage.
Again, as mentioned in the original, the problem isn't quotaing the whole VPS,
the problem is software (in this case, plesk) that seems to have a requirement
to set a hard quota *within* the VPS itself, which isn't supported, currently,
by jails ...
In the past, for quotaing 'the whole VPS', I had tried the whole md(4) device
idea, but found that insufficent inodes were being created for to do much, and
no matter what I tried with newfs, couldn't seem to get more to be created, as
if, due to the small size of the device, a 'max ratio' was being hit ... but,
this was way back on 4.x when I tried that ...
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . scrappy at hub.org MSN . scrappy at hub.org
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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