I tend to make my System Drive about 8Gb this allows for upgrades etc. some do smaller, others larger, when I do SQL I install the DB software in the C:\ and create a log partition\drive and a data drive
Tom Howarth VCP / VCAP / vExpert
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Blog: http://www.planetvm.net
Contributing author on VMware vSphere and Virtual Infrastructure Security: Securing ESX and the Virtual Environment
Contributing author on VCP VMware Certified Professional on VSphere 4 Study Guide: Exam VCP-410
