PS convertto-Ncvmdk fails with Block ranges are overlapping or unaligned(for compressed files).

JulianKolozvary — Wed, 04 Jun 2025 11:13:41 GMT

Hello community,

can you help with answering how to check which LBA blocks are being overlapping?

What I am doing:

1x migration volume – contains 2 thin (efficiency enabled) migrations luns (each lun has a different size)–> 1x Source and 1x Destination, then when I convert *.vhdx from Source to Destination *.vmdk using a snapshot and -Skipunmap, then in some cases I get an error , ie block ranges are overlapping or unaligned. At this moment during conversion the filer is switching from sub-file flexclone to Xcopy.

Luns are NTFS formated (default).

There is more than 1 .vhdx on o source lun.

Filer: cDot - Ontap 9.6 p3 with flexclone licensed

PS toolkit v 9.6.

error message:

ConvertTo-NcVmdk : Clone operation failed to start: Block ranges are overlapping or unaligned(for compressed files).

Thank you

Julian

Re: PS convertto-Ncvmdk fails with Block ranges are overlapping or unaligned(for compressed files).

nboggs — Tue, 28 Apr 2020 13:07:57 GMT

I apologize for the delay in any response. Do you still need assistance with this issue? I have looked around and that error usually means something about changes in block size.

topic PS convertto-Ncvmdk fails with Block ranges are overlapping or unaligned(for compressed files). in Software Development Kit (SDK) and API Discussions

PS convertto-Ncvmdk fails with Block ranges are overlapping or unaligned(for compressed files).

Re: PS convertto-Ncvmdk fails with Block ranges are overlapping or unaligned(for compressed files).