Over the last month or so, I’ve noticed that my VMware Virtual Center Server has been losing disk space like mad. When I finally got around to just being frustrated by low performance and wondering just when the server would actually run out of space and choke, I decided to investigate. I downloaded an awesome tool called WinDirStat which will let you actually see in pretty short order, just how your hard drive is being used and by what.
Turns out the culprit was Virtual Center itself, not a bloated SQL database, or Windows Update files, but the Virtual Center Update Manager to be specific. Update Manager allows you to patch Guest and ESX host systems which is great, but it keeps a copy of all the updates it downloads, applied or not, on the local disk’s storage.
If you’re looking for this motherlode of files, on my system it was located at: C:Documents and SettingsAll UsersApplication DataVMwareVMware Update ManagerData.
Hope this helps someone. Good luck.