Restore Vmware From Delta Vmdk Hot! May 2026

She did something risky: manually edited the descriptor file of delta 14, pointing its parentFileNameHint to the actual CID of delta 13’s extent.

Maria documented everything and added a new rule: No snapshot older than 72 hours without a consolidation plan. She also wrote an internal tool called delta-forensics to map block dependencies across a chain.

Then she remembered: VMware snapshots store previous block states in deltas. The base VMDK still has the original block from 467 days ago. But delta 14 has the latest write. The corrupted block in delta 09 might actually be stale—overwritten in a later delta. restore vmware from delta vmdk

She used vmkfstools -D to inspect each delta. The deepest child ( FinServe-07-000014.vmdk ) had a valid descriptor but the parent CID didn’t match any actual parent. A typical "broken chain" from a storage migration gone wrong months ago.

But Maria knew: rolling back would mean losing 467 days of transaction logs. The company would miss quarterly filings. She did something risky: manually edited the descriptor

At 3:30 AM, the clone stalled at 42%. She checked the storage logs—silent corruption in delta 09. The block containing a purchase order table’s metadata was unreadable.

The corrupted block? It belonged to a deleted temp table from 200 days ago. Nothing of value lost. Then she remembered: VMware snapshots store previous block

She couldn’t skip it. The VM would boot but corrupt data silently.