[mythtv-users] Xen and Mythtv and Mysql

[Richard Freeman]

Chris Isip wrote:
> How safe is it to use xen virtual machines to run mysql, mythtv, etc.  I 
> am building my new mythtv server and have just started tinkering with 
> this.  I am thinking of running mysql in a 10 GB vm with 1000 megs of 
> ram, mythtv in a 5 GB vm with 500 megs of ram with CentosPlus in LVM 
> ext3 and swap.   I will be running other servers as well but those two 
> are the ones relevant to this list.  Has anyone tried this and if you 
> have, what are your experiences as far as stability and what disk space 
> and ram considerations do you recommend.  I will be running Centos Plus.
> 

I haven't actually tried it, but I suspect mysql will work just fine. 
If you're running tuner cards I'm not so sure about mythtv/ivtv/etc - 
I'm not sure if those are compatible with any virtualization schemes. 
In general the main issue with virtualization tends to be direct 
hardware access / device drivers / etc.  An app like mysql that just 
access files and communicates via IP shouldn't have any issues as long 
as you allocate sufficient RAM/CPU/etc.  There will be a little 
overhead, but nothing horrible.