Scott Dowdle wrote: > Greetings, > > I see these problems with Xen... and many people are stating that they are > running CentOS on CentOS... ie Linux on Linux virtualization... so I thought > I'd pipe up and mention OpenVZ again. It does Linux on Linux virtualization > well and allows for i386 guests on x86_64 hosts just fine. > > On a dual quad-core Xeon with 16GB of RAM (4GB of swap) I asked the vzsplit > command how many machines it thinks my hardware is capable of. Here's the > output: > > [EMAIL PROTECTED] ~]# vzsplit -n 9999999 > On node with 20114 Mb of memory (RAM + swap) 9999999 VEs can not be allocated > The maximum allowed value is 3795 > > On a machine with 2GB of RAM and 4GB of swap: > > [EMAIL PROTECTED] root]# vzsplit -n 9999999 > On node with 6119 Mb of memory (RAM + swap) 999999 VEs can not be allocated > The maximum allowed value is 639 > > Of course, there are some situations where OpenVZ (ie OS Virtualization) > isn't suitable... but for the vast majority of common server tasks, it is. I > don't claim you should try that many virtual machines on a single host node > but it just goes to show you the density differences possible between Xen and > OpenVZ, eh? :) > > TYL,
It would really suck to have 3795 "virtual machines" die all at the same time from a single kernel panic. -- Christopher G. Stach II _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
