The VMFS forensic investigator and fellow vExpert Mike La Spina posted a great article about some unrevealed storage secrets. His article “Understanding VMFS volumes “ contains everything you should, want or ought to know about the UUID, snapshot’s and devices.
Understanding VMFS volumes is an important element within VMware ESX environments. When storage issues surface we need to correctly evaluate the VMFS volume states and apply the appropriate corrective actions to remediate undesirable storage events. VMFS architecture is not publically available and this certainly adds to the challenge when we need to correct a volume configuration or change issue. So lets begin to look at the components of a VMFS from what I have been able to decrypt using direct analysis.
http://blog.laspina.ca/roller/Ubiquitous/entry/understanding_vmfs_volumes
