On Wednesday 23 July 2008 10:25:09 Zavodsky, Daniel (GE Money) wrote:
> Dom0 is indeed faster in I/O operations than DomU. But if you are that
> concerned about I/O performance, put the NFS server on a standalone
> machine and not as a Dom0 which can compromise all DomUs running on it -
> especially if it runs something like a NFS server.
We already have an external filer. But still (or better again) discuss about 
using NFS vs. iSCSI in Dom0 and then map the iSCSI Blockdevices in Dom0 to 
DomU. Because of performance concerns. Although originally we preferred NFS 
because of the ease of management of the whole concept. 

But 20% difference in performance restarts that discussion all over again.

> The percentages vary, if you set it up correctly, a DomU NFS server will
> be only ~10 percent slower than a native server.
Are there any relyable comments/documents on this topic?

-marc

-- 
Gruss / Regards,

Marc Grimme
http://www.atix.de/               http://www.open-sharedroot.org/

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