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Ah, sorry forgot to include the original support thread. The limit I hit was 128 active VMs at once. Once I hit that number, I was unable to launch any more unless I stopped one that was already running. My original thread can be found here (though there is little information contained in it): http://forums.virtualbox.org/viewtopic.php?f=7&t=40955<br><br>-Zak<br><br>> Date: Fri, 29 Apr 2011 16:25:44 +0200<br>> From: klaus.espenlaub@oracle.com<br>> To: vbox-dev@virtualbox.org<br>> Subject: Re: [vbox-dev] Linux Host VM Cap?<br>> <br>> On 25.04.2011 18:00, Zak Perschon wrote:<br>> ><br>> > I've come across what is seemingly a hard cap for the amount of<br>> > concurrent VMs I can run on a Linux based machine (after posting on the<br>> > support forums, I was directed here). Apparently this same cap was<br>> > encountered on a solaris host and a fix was deployed to increase the<br>> > amount of VMs that were allowed to run at the same time. Was this fix<br>> > supposed to be included in other OS releases? Any information on this<br>> > would be greatly appreciated.<br>> <br>> That's a rather vague statement, and if you could tell what number of <br>> concurrently running VMs you can achieve I might be able to infer what <br>> limit is causing trouble for you.<br>> <br>> It could be the SysV semaphore count, the number of open files per <br>> process, and so on. All these defaults depend on the kernel <br>> configuration and/or distribution, so it's hard to generalize.<br>> <br>> Solaris is easy compared to that, as it is very uniform compared to Linux.<br>> <br>> Klaus<br>> <br>> ><br>> > Here is the information on the hardware/VM profiles I am using<br>> ><br>> > Host Machine:<br>> > 128 Processor Cores (64 dual core Xenon processors running@2.27 GHz)<br>> > 2.0 TB Memory (1.8~ Usable)<br>> > 1.8 TB RAID 0 (6 x 300GB HDD running at 10k RPM)<br>> > 16TB SAS<br>> ><br>> > VM Profile<br>> > Compiled TinyCore Linux 2.6<br>> > Required Memory: 150~MB<br>> > Required HDD Space: 50MB<br>> ><br>> > -Zak<br>> <br>> _______________________________________________<br>> vbox-dev mailing list<br>> vbox-dev@virtualbox.org<br>> http://vbox.innotek.de/mailman/listinfo/vbox-dev<br> </body>
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