The short answer
Inventory the source, test a small representative transfer, copy the collection and verify the destination before retiring the source. Keep account access and an independent recovery copy available during the move.
Prepare a measurable starting point
Record selected file counts and byte totals with a local inventory. Separate duplicates, working files and archives. Decide whether old versions and shared references must also move; an ordinary download may not preserve every provider-specific object or setting.
Test a representative batch
Include small documents, large media and names with accents or non-Latin characters. Estimate elapsed time with your measured throughput. Check what happens after interruption and whether names, structure and readable content survive the round trip.
Verify and close deliberately
Compare destination counts and sizes with the planned selection and inspect important files. For selected files, compare SHA-256 digests from known originals and downloads. Do not delete the source merely because a transfer reports completion. Record what moved, what was excluded and who accepted the result.
Checklist
- 1Record source counts, sizes and exclusions.
- 2Test a representative transfer.
- 3Compare readable destination files with originals.
- 4Retire the source only after a reviewed handoff.
Good questions. Clear answers.
Do matching file counts prove a successful migration?
No. Counts do not establish that each file has the intended content. Inspect samples and use appropriate integrity checks.
Does this website perform the migration?
No. Its inventory, planning and checksum tools help you prepare and verify a migration; they do not connect storage accounts.
Related free tools
Review selected local files by extension, total bytes and largest files, then export an inventory.
Transfer time calculatorEstimate upload or download time using file size, connection speed and effective throughput.
File checksum generatorCalculate a local SHA-256 fingerprint and compare it with a checksum you already have.