Rajat Asked: 2009-08-26 05:06:02 +0800 CST2009-08-26 05:06:02 +0800 CST 2009-08-26 05:06:02 +0800 CST Assessment & Planning Toolkit 772 Is there any free tool assessment & planning for Server Consolidation, Performance counters in open source or free to use. virtualization 1 Answers Voted Best Answer warren 2009-09-19T03:55:42+08:002009-09-19T03:55:42+08:00 Honestly, every planning tool I've ever seen has been based on Excel. Typical factors may include: current CPU load per server what's running on each server current hardware of each server expected percentage increase in usage OS usage - homogenous or heterogeneous new hardware or re-use current hardware storage needs vendor for virtualization (VMware, Microsoft, Xen) And don't forget the all-important: BUDGET My experience is all related around VMware, but what I've seen and used in the past is the following: look at all CPU utilizations currently add those average and peak percentages in two separate columns plan for ~10% overhead from your hypervisor of choice for every 40% of 'average' or 80% of 'peak', use one server of the type you now consider "high-end" ie, if you have a total of 687% of 'peak', you need 9 physical servers running your hypervisor of choice Other thoughts: I like to plan for 1 full spare physical server per ~6, so that I can utilize Vmware's Vmotion for migrating servers around plan for buying/utilizing SAN storage of some form so your VMs can be moved to different physical servers easily I'm sure VARs have all sorts of fancy interfaces or pre-built spreadsheets for this, but they also charge you an arm and a leg to get their advice :)
Honestly, every planning tool I've ever seen has been based on Excel.
Typical factors may include:
And don't forget the all-important:
My experience is all related around VMware, but what I've seen and used in the past is the following:
Other thoughts:
I'm sure VARs have all sorts of fancy interfaces or pre-built spreadsheets for this, but they also charge you an arm and a leg to get their advice :)