If you are using Oak (CRX3) TarMK with your Adobe Experience Manager 6.0 instance, you may have noticed your disk space filling up disproportionately to the amount of content and assets in the repository.
This is a known issue, and has now been fixed with Service Pack 1 for AEM 6.0. (Service Pack 1 includes and supersedes Hotfix 4642, - which includes and supersedes Hotfix 4135 - which also resolves this issue.)
You can download the service pack from Package Share.
This and any other hotfixes for Adobe Experience Manager 6.0 will be listed here: http://helpx.adobe.com/experience-manager/kb/aem6-available-hotfixes.html