A Phased Verification Method for NAS Shared Drive Migration Without Messing Up Permissions

When a small team migrates from an old NAS to new storage, the biggest issue isn't file copying, but permissions. We once finished a migration only to discover that the Sales team could see the Finance department's quote directory; even though it was read-only, it was still a headache. Now, I do it in three steps. First, use rsync or the vendor's migration tool to copy the data, but don't switch…