Merge pull request #292875 from gkasar/ha-doc-preview

Added explanation for WAL files rate in HA limitations section

Author: prmerger-automator[bot]

articles/reliability/reliability-postgresql-flexible-server.md

@@ -102,7 +102,7 @@ For a detailed guide on configuring and interpreting HA health statuses, refer t
 
 - Depending on the workload and activity on the primary server, the failover process might take longer than 120 seconds due to the recovery involved at the standby replica before it can be promoted.
 
-- The standby server typically recovers WAL files at 40 MB/s. If your workload exceeds this limit, you can encounter extended time for the recovery to complete either during the failover or after establishing a new standby.
+- The standby server typically recovers WAL files at 40 MB/s. For larger SKUs, this rate can increase to as much as 200 MB/s. If your workload exceeds this limit, you can encounter extended time for the recovery to complete either during the failover or after establishing a new standby.
 
 - Restarting the primary database server also restarts the standby replica.