RE: [Xen-users] storage question

[John Madden <jmadden@xxxxxxxxxxx>]

> We have another one of these NFS servers that we do the backups to  
> (rysnc) and the performance is such that we can't have more than two  
> servers backing up to it as the same time.  So I doubt putting a  
> dozen VM servers (or even Xen servers for that matter) will do very  
> well.  We are seeing about 20MB/sec throughput.
Writes and random i/o to devices like that will always be bad, but on  
the other hand, you could probably make a compelling argument *to* use  
one depending on the use case.  If all you're doing is low-end web  
serving, I bet the setup would be fine, as much as the idea of serving  
root filesystems off of NFS irks me.  At any rate, you can likely  
build a better-performing NFS box out of commodity components for less  
money.
John





--
John Madden
Sr. UNIX Systems Engineer
Ivy Tech Community College of Indiana
jmadden@xxxxxxxxxxx


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