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<div class="moz-cite-prefix">First of all, a virtualized SAN is not
a problem but a good idea on a lot of use cases unless you can
supply the same CPU, RAM and disk recommendations like you would
do on on real hardware. It is also not a problem, that you cannot
do vmotion with your SAN-VM (How would you vmotion your physical
disks??)<br>
<br>
But you must provide:<br>
- real hardware access to controller and disks (needs
pass-through/vt-d) for your SAN VM OmniOS<br>
- assign enough RAM for caching (Arc-cache), the more the faster<br>
- be not CPU limited<br>
<br>
If you need a ZIL or better disable sync write depends on use
case.<br>
If you build an All-In-One (ESXi with virtualized SAN), all your
guests go down together with your SAN,<br>
so mostly a ZIL costs money and performance but cannot improve
security.<br>
<br>
You should also trythe ESXI highspeed VMXnet3 network drivers
(unless you find problems with them like some others)<br>
If you intend to use compression, use LZ4 (with newest OmnoOS
stable with bugfixes for LZ4)<br>
<br>
Have you read my manuals (hope they are helpful)?<br>
<a class="moz-txt-link-freetext" href="http://www.napp-it.org/doc/downloads/all-in-one.pdf">http://www.napp-it.org/doc/downloads/all-in-one.pdf</a> and<br>
<a class="moz-txt-link-freetext" href="http://napp-it.org/doc/ESXi-OmniOS_Installation_HOWTO_en.pdf">http://napp-it.org/doc/ESXi-OmniOS_Installation_HOWTO_en.pdf</a><br>
<br>
Gea<br>
<br>
<br>
On 13.05.2013 20:55, C. L. Martinez wrote:<br>
</div>
<blockquote
cite="mid:CAEjQA5+fVF3kWFWrRXS5A_UnfELW7Fw7Bu99k3XMR+LTPVQwxA@mail.gmail.com"
type="cite">Hi all,<br>
<br>
Next month, we need to deploy an omnios virtual machine to act as
storage server under esxi 5.1. We can not use bare metal server,
and I know that is a problem.<br>
<br>
We are thinking in disable zil. Is it recommended when omnios is
installed as a vm?? And we can not use pci passthrough esxi
feature due to vmotion and HA features enabled in these esxi
servers.<br>
<br>
Any recommendations about how to configure this vm?<br>
<br>
At first stage we can allocate 8 gb of ram and 4 vcpus. And wr
need to manage 5 tb of data with snapshots and maybr compression
in certain zfs volumes.<br>
<br>
Thanks
<br>
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<br>
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</pre>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">-- </pre>
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