Hi guys,
I need you help for a HA problem. I have to implement a equipment with
HA solution based on 2 servers, I''m sure you could help.
The basic idea is something like this:
* On both servers I was thinking to install Debian 6.0.1
"Squeeze" with xen 4.1.0 hypervisor and xen-tools.
* Creating a virtual machine on Server 1 and replicated to
Server 2 only for the first time.
* Running the virtual machine on Server 1 and try through remus
and DRDB send checkpoints and disk modifications to Server 2 and hope a
virtual machine be created on Server 2 on hot standby role.
* Using HeartBeat on both servers I could detect a failure on
each server.
* If the Virtual Machine on Server 1 or the Server 1 itself
suffer some kind of failure, I would expected the virtual machine on
Server 2 change from hot standby to online role.
* Meanwhile if the Server 1 recovers from the failure, it should
now receive the checkpoints and disk modification from Server 2 becoming
this assuming the hot standby role.
My questions:
* It''s possible to do this with remus and DRDB? On
http://nss.cs.ubc.ca/remus/doc.html
<http://nss.cs.ubc.ca/remus/doc.html> webpage it seems so. But can
anyone confirm that?
* For now this test will be performed on a computer with CPU
Intel Pentium 4 at 3.2GHz (32bits) without KVM support and with 2GB of
RAM. Does anyone knows if this type of machine could has problems with
xen?
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