# Check delta chain integrity vmkfstools -e delta.vmdk
This guide explores the technical nature of delta disks and provides actionable steps to recover your data when things go wrong. Understanding the Delta Chain recover data from vmdk delta files
vmkfstools -c parent-cid-number -d delta.vmdk # Check delta chain integrity vmkfstools -e delta
To extract data from a standalone delta file without the parent, you need specialized software that understands VMFS structures. recover data from vmdk delta files