> For the complete documentation index, see [llms.txt](https://docs.witnesschain.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.witnesschain.com/archive/for-the-node-operators/watchtower-setup/migration-from-archive-to-full-node.md).

# Migration from archive to full node

Describes the steps involved to migrate from archive to full node

Rollup node operators can reduce storage cost by changing the type of rollup node. An `archive` node stores the full state history for each block since genesis block. In contrast, a full node stores the state only for the recent 128 blocks. Therefore, moving from `archive` node to `full` node will significantly reduces the storage needs for running rollup nodes.

To migrate the rollup node from `archive` node to `full` node, take the following steps:

1. Stop the current rollup node. Change current working directory to the root of `setup-rollup` repository.

```
cd setup-rollup
docker compose down
```

2. In `geth.yml`, change `--gcmode` from `archive` to `full` node.

```
--gcmode=full
```

3. Resume the rollup node

```
docker compose up -d
```

Your rollup node should be up now. It will garbage collect the states older than 128 blocks.