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Adam Chlipala wrote:
<blockquote cite="mid:4A454A0C.8010301@hcoop.net" type="cite">
<pre wrap="">John T. Settino wrote:
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">Do we really need VMs? I know that virtualisation is hyped these days,
but they should be used with care. Just because we have several VMs,
we don't avoid a single point of failure.
</pre>
</blockquote>
<pre wrap="">This is true, but do better solutions exist for dedicated a specific
amount of CPU and memory to specific applications? Having a dedicated VM
for each service can prevent one haywire service from taking down an
entire infrastructure, as what happened when AFS borked on delueze the
other day. If for example, email was fscking up, you could reboot the mail
VM and not have to restart each and every service at the same time because
you rebooted the machine they were all housed on.
</pre>
</blockquote>
<pre wrap=""><!---->
I agree that this is a very attractive benefit of virtualization, and
perhaps it's the only benefit that's really relevant to our near-term
plans. (Being able to transfer virtual machines across physical servers
might make the list, too.)
</pre>
</blockquote>
Very attractive indeed, sir. You might even be able to allow .htaccess,
because Apache won't take down the rest of the server(s)! <br>
<br>
<blockquote cite="mid:4A454A0C.8010301@hcoop.net" type="cite">
<blockquote type="cite">
<pre wrap="">Does anyone have an accurate listing of just how much data the coop is
using? I'm not sure. This would definitely indicate the size of NAS or
storage devices we would need to purchase for any RAID arrays.
</pre>
</blockquote>
<pre wrap=""><!---->
Current disk usage on deleuze's AFS partition is 112313540 kB. This
doesn't really measure how much demand there is, though, since we've
been clear so far that it's prohibitively expensive for us to add new
storage. I expect we can easily use up terabytes of disk space with
reasonable projections of membership growth.
</pre>
</blockquote>
If I just did my math right, that's 107~GB? I'm surprised it's not
more. I would say then that in interests of growth, the NAS(es?) we
hypothetically purchase contain at least 1.5-2Tb in them each. That
leaves plenty of room for storage of bother user and system data
(assuming we were storing the VMs there as well, which would be a
GoodIdeaIfYouAskMe). <br>
<br>
<br>
<div class="moz-signature">-- <br>
<span
style="font-family: 'Courier New',monospace,sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"><b>John
T. Settino</b><br>
Web Developer / Technologist for Hire<br>
<a href="http://www.johnsettino.com/"><span
style="color: rgb(0, 0, 128);">http://www.johnsettino.com/</span></a><br>
<br>
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Please consider the environment before printing this email. :DGC</span></span></div>
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