# PBM-AGENT need to run sh.stopBalancer() on mongo shard cluster before doing backup?

**URL:** <https://forums.percona.com/t/pbm-agent-need-to-run-sh-stopbalancer-on-mongo-shard-cluster-before-doing-backup/20835>\
**Category:** Percona Backup for MongoDB\
**Tags:** percona, mongodb, pbm\
**Created:** [March 21, 2023, 12:46pm UTC](https://forums.percona.com/t/pbm-agent-need-to-run-sh-stopbalancer-on-mongo-shard-cluster-before-doing-backup/20835 "2023-03-21T12:46:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Anton\_Kireev](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/anton_kireev/32/9796_2.png) [@Anton\_Kireev](https://forums.percona.com/u/Anton_Kireev)\
**Post date:** [March 21, 2023, 12:46pm UTC](https://forums.percona.com/t/pbm-agent-need-to-run-sh-stopbalancer-on-mongo-shard-cluster-before-doing-backup/20835/1 "2023-03-21T12:46:04Z")

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I can’t find in the documentation a requirement to disable sharded cluster balancing before doing a backup.

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**Author:** ![Ivan\_Groenewold](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/ivan_groenewold/32/6299_2.png) [@Ivan\_Groenewold](https://forums.percona.com/u/Ivan_Groenewold)\
**Post date:** [March 21, 2023, 12:57pm UTC](https://forums.percona.com/t/pbm-agent-need-to-run-sh-stopbalancer-on-mongo-shard-cluster-before-doing-backup/20835/2 "2023-03-21T12:57:44Z")

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Hi, no need to stop the balancer as PBM does it for you.