# I use hot backup to back up a shard cluster. Now I want to restore one of the shard data to a stand-alone database. What should I do

**URL:** <https://forums.percona.com/t/i-use-hot-backup-to-back-up-a-shard-cluster-now-i-want-to-restore-one-of-the-shard-data-to-a-stand-alone-database-what-should-i-do/14750>\
**Category:** Percona Server for MongoDB\
**Created:** [March 15, 2022, 2:56am UTC](https://forums.percona.com/t/i-use-hot-backup-to-back-up-a-shard-cluster-now-i-want-to-restore-one-of-the-shard-data-to-a-stand-alone-database-what-should-i-do/14750 "2022-03-15T02:56:51Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![zengwb](https://avatars.discourse-cdn.com/v4/letter/z/49beb7/32.png) [@zengwb](https://forums.percona.com/u/zengwb)\
**Post date:** [March 15, 2022, 2:56am UTC](https://forums.percona.com/t/i-use-hot-backup-to-back-up-a-shard-cluster-now-i-want-to-restore-one-of-the-shard-data-to-a-stand-alone-database-what-should-i-do/14750/1 "2022-03-15T02:56:51Z")

</div>

I put the data into the data path of the standalone database, but found that the startup failed. After checking the log, I found that I would always try to connect to the Config of the sharded cluster

The version used is 4.4.8

---

<div class="post-metadata">

**Author:** ![zengwb](https://avatars.discourse-cdn.com/v4/letter/z/49beb7/32.png) [@zengwb](https://forums.percona.com/u/zengwb)\
**Post date:** [March 15, 2022, 3:09am UTC](https://forums.percona.com/t/i-use-hot-backup-to-back-up-a-shard-cluster-now-i-want-to-restore-one-of-the-shard-data-to-a-stand-alone-database-what-should-i-do/14750/2 "2022-03-15T03:09:37Z")

</div>

Found the problem ，I still added the role of shard in the configuration file