Hello, All other serious virtualizers have published their limits, except VirtualBox. (KVM, VMware ESX and Hyper-V)
Example Hyper-V docs: http://technet.microsoft.com/en-us/library/ee405267(WS.10).aspx Even open-source projects, such as Wikipedia treat VirtualBox not seriously; Their reviewer reverted my updates twice (!) and after speaking with him, he demanded official documentation, before he allows me to modify wikipedia. Yay ! I decided to publish my (incomplete) knowledge, in the form of patch for VirtualBox manual. Here is my first "Request For Comments" patch for VirtualBox Limits, please review: --- /home/user/Linstall/1/vbox/doc/manual/en_US/user_KnownIssues.xml 2011-05-04 12:11:30.000000000 -0400 +++ /home/user/Linstall/vbox/doc/manual/en_US/user_KnownIssues.xml 2011-05-14 23:48:29.000000000 -0400 @@ -2,7 +2,51 @@ <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd";> <chapter id="KnownIssues"> - <title>Known limitations</title> + <title>Known limits and limitations</title> + + <sect1> + <title>Known limits</title> + <para>To consider serious deployment of VirtualBox, you should be aware of it's technical limits, both host-side and guest-side related.</para> + <itemizedlist> + <listitem> + <para>Host: (per Physical Machine limits)</para> + <itemizedlist> + <listitem><para>Max. Processors: 256 logical CPUs (Linux/Solaris 64-bit and 32-bit hosts) + <footnote><para>Logical CPU means physical CPU, processor core, CPU hardware thread, or any combination thereof.</para></footnote> + </para></listitem> + <listitem><para>Max. Processors: 32 logical CPUs (Windows 64-bit and 32-bit hosts)</para></listitem> + <listitem><para>RAM: 16 TiB (on 64-bit hosts)</para></listitem> + <listitem><para>RAM: 64 GiB (on 32-bit hosts)</para></listitem> + <listitem><para>Number of concurrently running virtual machines: 8192 VMs (Linux 64-bit, but on standard kernels up to 127 VMs)</para></listitem> + <listitem><para>Number of concurrently running virtual machines: 128 VMs (Linux 32-bit)</para></listitem> + <listitem><para>Host-only Networks: 8</para></listitem> + <listitem><para>Bridged/Internal Networks: not limited by VirtualBox</para></listitem> + <listitem><para>NAT/VDE/UDP Tunnel networks: not limited by VirtualBox</para></listitem> + </itemizedlist> + + </listitem> + + <listitem> + <para>Guests: (per Virtual Machine limits)</para> + <itemizedlist> + <listitem><para>Max. Processors per guest: 32 Cores</para></listitem> + <listitem><para>RAM per guest: 2 TiB (on 64-bit hosts)</para></listitem> + <listitem><para>RAM per guest: 3.5 GiB (on 32-bit hosts)</para></listitem> + <listitem><para>vNICs per guest: 8</para></listitem> + <listitem><para>vMonitors per guest: 8</para></listitem> + <listitem><para>vHDDs per guest: 4 IDE + 30 SATA/SCSI/SAS</para></listitem> + <listitem><para>Max. vHDD size: 2 TiB</para></listitem> + <listitem><para>Floppy devices: 2</para></listitem> + <listitem><para>Serial Ports: 2</para></listitem> + <listitem><para>Shared Folders: not limited by VirtualBox</para></listitem> + <listitem><para>Snapshots: not limited by VirtualBox</para></listitem> + </itemizedlist> + </listitem> + </itemizedlist> + </sect1> + + <sect1> + <title>Known limitations</title> <para>This sections describes known problems with VirtualBox $VBOX_VERSION_STRING. Unless marked otherwise, these issues are planned to @@ -208,4 +252,5 @@ due to inherent limitations of the OS/2 graphics system.</para> </listitem> </itemizedlist> + </sect1> </chapter> -- -Alexey Eromenko "Technologov" _______________________________________________ vbox-dev mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-dev
