<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=utf-8" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18702">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2 face=Arial>Hi Antonio</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Host = The system installed in the physical
computer<BR>Guest = The Virtual Machine installed in the Host<BR>Virtio-Block =
Driver for access to the disk (Technology popular in KVM)<BR>Virtio-Net = Driver
for access to the network (Technology popular in KVM)<BR>KVM = (Kernel Virtual
Machine), system of Virtualization developed mainly by Red hat - Open
Source<BR>HA = High Availability<BR>OS = Operating System</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>I am using KVM that comes with Proxmox Virtual
Environment (PVE), PVE have a Web graphic environment very nice for administer
it, also with HA for the VMs, and of course with DRBD, although DRBD is
not mainly supported by PVE, it works very well for me.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>I know that many people changed of ESXi to PVE
(reading in the forum)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Talking about of PVE, please see these links:<BR><A
href="http://pve.proxmox.com/wiki/Main_Page">http://pve.proxmox.com/wiki/Main_Page</A><BR><A
href="http://pve.proxmox.com/wiki/Category:HOWTO">http://pve.proxmox.com/wiki/Category:HOWTO</A><BR>-
The ISO installer of Proxmox VE:<BR><A
href="http://www.proxmox.com/downloads">http://www.proxmox.com/downloads</A><BR>-PVE
has a forum very active for do questions:<BR><A
href="http://forum.proxmox.com/forums/16-Proxmox-VE-Installation-and-configuration">http://forum.proxmox.com/forums/16-Proxmox-VE-Installation-and-configuration</A></FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Moreover, between several VMs, i have a VM in HA
with Centos, MySQL, apache (and with DRBD for this VM that be in HA), and as in
Linux, the virtio drivers works more fast that in Windows systems, i prefer use
Linux as OS for MySQL. For better performance of MySQL, always is preferable to
have as much RAM as the size of the databases of MySQL, also configure MySQL for
use all this amount of memory, with it, you will earn a 80% of the optimization
of MySQL.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I hope these comments be helpful.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2 face=Arial>Best regards<BR>Cesar</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=antoniofernandez@fabergroup.es
href="mailto:antoniofernandez@fabergroup.es">Antonio Fernández Pérez</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=brain@click.com.py
href="mailto:brain@click.com.py">Cesar Peschiera</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=joel@securelink.com
href="mailto:joel@securelink.com">Joel N. Burleson-Davis</A> ; <A
title=drbd-user@lists.linbit.com
href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, February 18, 2015 7:19
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [DRBD-user] DRBD on virtual
machine</DIV>
<DIV><BR></DIV>
<DIV dir=ltr>
<DIV class=gmail_default>
<DIV class=gmail_default><FONT color=#444444>Hi list:</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>Thanks for your
replies.</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>I will have MySQL on these two
servers. On our environment there are a lot of read/write transactions so
speed is very important for perform everyday actions.</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>I don't understand when you say
about virtio-block and virtio-net. What is that? Some configuration method for
VM?</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>What do you want to say when you
speak about host and guest? I think that an iESX has a lot of VM and a VM is a
¿guest? What is the "host"?</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>Thanks for your
suggestions.</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>Thanks in advance.</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT color=#444444>Regards,</FONT></DIV>
<DIV class=gmail_default><FONT color=#444444><BR></FONT></DIV>
<DIV class=gmail_default><FONT
color=#444444>Antonio.</FONT></DIV></DIV></DIV></BLOCKQUOTE></BODY></HTML>