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08-27-2011, 08:21 PM #1Newbie
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SolusVM Xen Templates - Pygrub vs Standard?
I'm working on setting up a set of PowerEdge servers for selling VPS hosting. I've setup my SolusVM Master & Slave, and I'm beginning to setup the templates. I purchased the minimal set from Chris here at WHT, and I had one question for those who are familiar with setting up Xen SolusVM servers:
Which is the preferred setup: Standard or Pygrub? I haven't been able to identify if one offers an inherent performance/customization boost over the others.
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08-27-2011, 09:20 PM #2VPS Like a Boss!
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Pygrub is better since you can run native 32-bit virtualize OS kernel, non pygrub always shows the host node's kernel when you do #uname -a (which is CentOS XEN Kernel 64-bit) even though you for example use 32-bit CentOS template, this is problematic if you want to install on 32-bit OS template a software like cPanel, also updating main node's kernel will cause version conflicts on DomU's kernel modules.
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08-28-2011, 02:17 AM #3Total Nerd
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PyGrub is nice but it has some pretty bad performance issues:
We've found that PyGrub based templates provide less overall RAM than a standard template (not much, but for a 96MB VPS users have complained of up to 10MB loss when using PyGrub based templates).
In regards to this thread here, we've determined that a template with PyGrub results in about a 50% network speed loss for no known reason. Our VPS with a 100Mbps port will perform at 40Mbps with PyGrub but at near 80Mbps with a standard template.-Joe @ Secure Dragon LLC.
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08-28-2011, 07:54 AM #4Web Hosting Master
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Check out my SSD guides for Samsung, HGST (Hitachi Global Storage) and Intel!
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08-28-2011, 01:45 PM #5Total Nerd
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I am using Xen PV instead of HVM. Why?
-Joe @ Secure Dragon LLC.
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