Note: Delta EMC (now part of Dell EMC) refers to this tool as part of their broader or Avamar ecosystems, but third-party tools also use the "Delta VMDK" terminology. This review focuses on the native Dell EMC Delta VMDK Recover functionality within their data protection suite.
| Feature | Delta VMDK Recover | Veeam Instant Recovery | Rubrik Live Mount | |---------|--------------------|------------------------|-------------------| | Granular file restore | Yes (via mount) | Yes (native explorer) | Yes (native) | | No staging space needed | ✅ Yes | ❌ Needs cache | ✅ Yes | | Direct block-level delta | ✅ Yes | ⚠️ Full VMDK first | ✅ Yes | | GUI file browser | ❌ CLI/SCP | ✅ Windows Explorer | ✅ Web UI | | Price (typical) | Included with Avamar | Add-on license | Included |
Elias watched the log. Block check... Ok. Grain table... Ok. delta vmdk recover
Three minutes ago. He hadn't lost a single byte.
The computer was accepting the lie. The delta file was overlaying its changes onto the surrogate parent. It was stitching three months of frantic changes onto a two-day-old body. It was risky—he was essentially performing a heart transplant on a running dataset—but it was working. Note: Delta EMC (now part of Dell EMC)
: Every VMDK has a Content ID (CID) and a parentCID . The parentCID of a delta file must match the CID of its parent disk.
You can restore a single .mdf file from a SQL VM, but the database will likely be corrupt if log files aren’t consistent. For application-consistent restores, you still need full VM recovery or a separate application-aware tool. Block check
VMware provides built-in tools to help recover data from corrupted or lost delta VMDK files:
On the wall, the big digital clock read 03:14 AM.