On Fri, Aug 12, 2011 at 2:24 PM, Dave Hala Jr <span dir="ltr"><<a href="mailto:dave@58ghz.net">dave@58ghz.net</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I really doesn't appear that there is much differance between the<br>
Readynas 1500 and the entry level Powervaults.<br>
<br>
My intent is virtualize about 6 servers and most likely launch the VM's<br>
from a central location. They are mostly low-medium traffic webservers.<br>
<br>
I'm not against building a server, but ya know, if I can just buy one<br>
and plug it in, that's not always a bad thing. I was hoping to stay<br>
around the 1500-3k range. How many people actually build there own rack<br>
servers anymore?<br><br></blockquote></div><div><br></div><div>I totally agree. I would expect that a GigE connection to a RAID array (with presumably fast seek times) should be able to approach an IDE drive's performance. I don't know much about these NAS's you're mentioning but I've seen a low cost consumer device that can NOT saturate the GigE port and seem to be bandwidth limited by internal architecture. (<$200 units)</div>
<div><br></div><div>According to <a href="http://en.wikipedia.org/wiki/Serial_ATA#Comparison_to_other_interfaces">http://en.wikipedia.org/wiki/Serial_ATA#Comparison_to_other_interfaces</a> it suggests that IDE bandwidth just slightly exceeds 1Gb/s. Considering TCP/IP overhead that means you should probably expect slow-ide like performance at best. Probably not a great plan if your VMs need much i/o bandwidth. Fibre channel looks like a better choice if you can get it.</div>
<div><br></div><div>I'll show my inexperience with this question: Is GigE 1Gb/s each way (total 2Gb/s) assuming you have a full duplex connection? If so then maybe IDE-like performance isn't unreasonable to expect.</div>
<br>-- <br>Matthew Nuzum<br>newz2000 on freenode, skype, linkedin and twitter<br><br><p>
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