For example if i have 2 ibm Eserver 326 with dual xeon 2.8ghz each with 2 sata 200Gb drives. how many virtual machines can be configured on those to run a couple of mail servers and some network monitoring like ntop/nagios possibly add domain hosting services on there also? --dave Les Mikesell wrote: > David Milholen wrote: > >> What are some min requirements for Hardware and what performance >> differences are there in just running another pid for an app? >> > > That question is way too general to answer and also depends a bit on what VM > approach (xen/kvm/vmware server, vmware esxi) you use. As a rule of thumb, I'd > expect to lose 10% in overall performance and much more than that from disk head > contention unless you plan the layout very carefully and spread over independent > drives. You can make some (perhaps more than that) back by overcommitting the > machines where the load is likely to be bursty and staggered and by having a lot > of RAM for better disk buffering. > > -- David Milholen Project Engineer 501-318-1300 Wireless Etc -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100303/a946fc6d/attachment-0005.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: email signature_html_585a824d.png Type: image/png Size: 13672 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20100303/a946fc6d/attachment-0005.png>
