📅 Thursday, 5 June 2025
🕐 9:08 PM
Bitmap Syncing
Bitmap syncing is like marking exactly what changed while the system was down, so you can sync only those parts late
Delta Syncing = Comparing two finished sandwiches
Now imagine you already finished making the sandwich at one counter (the source), and someone tried to make a copy at another counter (the replica). But they weren’t watching closely. So now you go back and compare every part of the sandwich: is the meat the same? Is the sauce level identical? You do a bite-by-bite comparison (like checksum verification) to make sure they match.
That’s delta syncing , a deep comparison to make sure the source and replica are the same, usually done after a failover or when there’s doubt about consistency.