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Virtualization rocks! No problems in our
production environment. I strongly suggest it for any website, unless you’re
hosting Google or Yahoo. We’re using VMware’s ESX 3.0 in
production. I have 37 production VMs spread across 4 ESX3 hosts. We also have
a SAN which allows us to VMotion (hot migrate) running VMs from server to
server. Most of my VMs are Windows but I do have 3 linux VMs with CentOS 4.3
running pound and mongrel, as well as MySQL. Everything is running very well.
If you don’t have the cash for ESX 3, you might consider running VMware Server.
VMWare Server is free, but the performance is less and you can’t get as
many VMs on a single box and no Vmotion L. The biggest benefit we see from the VMware
is Disaster Recovery options available. I also love using the snapshot feature
prior to major software upgrades. If the upgrade introduces major errors, you
can then shutdown the VM, revert to the earlier snapshot. The one problem I had initially was with
time keeping. The below link is what fixed my problems. KB Doc ID: 1420 is recommended reading for
time sync issues with Linux guest on vmware. http://kb.vmware.com/vmtnkb/search.do?cmd=displayKC&docType=kc&externalId=1420&sliceId=SAL_Public In addition to instructions in the above
KB document, I also needed to add a one line script to /etc/cron.hourly/, “ntpdate
myntpserver.mydomain.com”. This corrects the remaining 1-2 seconds that I’m
ahead each hour. From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Thibaut Barrère Hi! Confidentiality Notice: This e-mail message, including any attachments, is for the use of the intended recipient(s), and may contain legally privileged and confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please do not read, copy, or use it, and do not disclose it to others. Please notify the sender of the delivery error by replying to this message, then delete it from your system, and destroy all copies. Thank you.
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