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<DIV><FONT size=2 face=Arial>What services do you want to have in the server?,
and<BR>At peak times, how many speed of write do you need?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>(If you don't need speed for write of blocks of
disk and network, DRBD can be installed in the guest).</DIV>
<DIV><BR></DIV></FONT>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Also you can search by Internet the benchmarks of
virtio-block and virtio-net.</FONT></DIV>
<DIV><FONT size=2 face=Arial>for example:</FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://arstechnica.com/civis/viewtopic.php?f=16&t=34039">http://arstechnica.com/civis/viewtopic.php?f=16&t=34039</A></FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://indico.cern.ch/event/45282/material/slides/1?contribId=5">http://indico.cern.ch/event/45282/material/slides/1?contribId=5</A></FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://domino.research.ibm.com/library/cyberdig.nsf/papers/0929052195DD819C85257D2300681E7B/$File/rc25482.pdf">http://domino.research.ibm.com/library/cyberdig.nsf/papers/0929052195DD819C85257D2300681E7B/$File/rc25482.pdf</A></FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>KVM, best practices:</FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://www-01.ibm.com/support/knowledgecenter/linuxonibm/liaat/liaatbestpractices_pdf.pdf?lang=en">http://www-01.ibm.com/support/knowledgecenter/linuxonibm/liaat/liaatbestpractices_pdf.pdf?lang=en</A></FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://www-01.ibm.com/support/knowledgecenter/linuxonibm/liaat/liaatbpstorage.htm">http://www-01.ibm.com/support/knowledgecenter/linuxonibm/liaat/liaatbpstorage.htm</A></FONT></DIV>
<DIV><FONT size=2 face=Arial><A
href="http://www.tdeig.ch/linux/pasche/12_BestPractices_IBM.pdf">http://www.tdeig.ch/linux/pasche/12_BestPractices_IBM.pdf</A></FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I think that you should to use LVM as block device
and not as a file system for your VMs (recomended by IBM), and also use it with
DRBD (in terms of performance, if DRBD is installed in the Host and not in the
guest, it will be your best option).</FONT></DIV>
<DIV><FONT size=2 face=Arial> </DIV></FONT>
<DIV><FONT size=2 face=Arial>Regards</FONT></DIV>
<DIV><FONT size=2 face=Arial>Cesar</FONT></DIV>
<DIV><FONT size=2 face=Arial></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> Tuesday, February 17, 2015 2:51
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [DRBD-user] DRBD on virtual
machine</DIV>
<DIV><BR></DIV>
<DIV dir=ltr>
<DIV style="COLOR: rgb(68,68,68)" class=gmail_default>Hi list: <BR></DIV><BR>
<DIV style="COLOR: rgb(68,68,68)" class=gmail_default>Firstly thanks for
your replies.<BR><BR>Supposed to be worse performance using VM but, is so
dramatic? <BR>Now I have a physical architecture with HA and I plan migrate
these to VM with another hosting provider. I think that with RAM, CPU and
storage there will be no problem ...<BR><BR></DIV>
<DIV style="COLOR: rgb(68,68,68)" class=gmail_default>Do you need more
info?<BR><BR></DIV>
<DIV style="COLOR: rgb(68,68,68)" class=gmail_default>Thanks in
advance.<BR><BR></DIV>
<DIV style="COLOR: rgb(68,68,68)" class=gmail_default>Regards,
<BR><BR>Antonio.</DIV></DIV></BLOCKQUOTE></BODY></HTML>