[K12OSN] Thinking about virtualization
les at futuresource.com
Wed Jun 6 21:51:02 UTC 2007
Carl Keil wrote:
>> On a small
>> home network that's probably not the case and you might be able to run
>> all your services on the same system - or run the things you use less
>> often under vmware with the centos-based k12ltsp as the host.
> Anyway, I really don't want to go this way. Out of all my servers, the
> K12LTSP one is the one that winds up needing a reboot or troubleshooting
> most often.
That's a solvable problem unless you have hardware issues that vmware
won't fix either. Especially with the Centos-based versions, k12ltsp
should never need a reboot except when you update the kernel. I have
one of the RH7.3 based versions that is approaching a 4 year uptime (the
uptime counter has rolled a couple of times, though).
> I seriously don't blame K12LTSP for this, I think it's just a
> factor that it's basically being used as a 5-way workstation, so it's
> subject to more vagueries of existence. I also tend to install new stuff
> on it more often, etc. I often trade uptime for more features, etc. on
> this box.
Vmware makes a great place to test new stuff...
> I want to virtualize mainly to save money. I want to lower my power bill
> and I've got vast quantities of unused clock cycles and storage space
> being unused on computers that are spun up all the time. My K12LTSP disk
> is 10% full, while my web/mp3 server is 60%, etc.
K12ltsp is perfectly capable of being a web/samba (etc.)server too.
> I'll think more about what you're suggesting though.
The most overhead on vmware will be in disk access so I'd try to keep
the most disk-intensive thing native. Also, if your k12ltsp is the dhcp
server for everything else, you probably want it running first.
lesmikesell at gmail.com
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