Hi folks! Hope you are doing well! So i have an Ai...
# replication-ask-ai
i
Hi folks! Hope you are doing well! So i have an Airbyte instance with a setup of S3 destination that points to a bucket and a particular folder. If i have another Airbyte instance and set up a S3 destination that points to the exact same bucket and folder, will it erase the existing data on that folder?
k
Yes, if you use the "Full Refresh Sync" mode, it will delete all previously synced data in the configured bucket path. This is because in "Full Refresh Sync" mode, data in the configured bucket and path will be wiped out before each sync. It is recommended to provision a dedicated S3 resource for this sync to prevent unexpected data deletion from misconfiguration. If you want to avoid data deletion, you might want to consider using the "Incremental - Append Sync" mode. This mode will append the new data to the existing data in the bucket. However, please note that Airbyte provides at-least-once delivery, so depending on your source, you may see duplicated data. You can find more information about this in the [Airbyte documentation](https://docs.airbyte.com/integrations/destinations/s3).