br: not support executing backup task and restore task at the same ti…

…me (#17076)
pingcap · Apr 9, 2024 · e29d7b6 · e29d7b6
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diff --git a/br/backup-and-restore-overview.md b/br/backup-and-restore-overview.md
@@ -25,6 +25,7 @@ This section describes the prerequisites for using TiDB backup and restore, incl
 - PITR only supports cluster-level restore and does not support database-level or table-level restore.
 - PITR does not support restoring the data of user tables or privilege tables from system tables.
 - BR does not support running multiple backup tasks on a cluster **at the same time**.
+- BR does not support running snapshot backup tasks and data restore tasks on a cluster **at the same time**.
 - When a PITR is running, you cannot run a log backup task or use TiCDC to replicate data to a downstream cluster.
 
 ### Some tips