Configuration of Storage Replication Adapter for highly scaled environment

You must configure the storage timeout intervals per the recommended settings for Storage Replication Adapter (SRA) to perform optimally in highly scaled environments.

Storage Provider settings

You must increase the value of the StorageProvider.resignatureTimeout setting from 900 seconds to 12000 seconds.
You must enable the StorageProvider.autoResignatureMode option.

See VMware documentation for more information on modifying Storage Provider settings.

VMware vSphere Documentation: Change Storage Provider Settings

Storage settings

You must set the value of the storage.commandTimeout timeout interval for highly scaled environments to 12,000 seconds.

Note: The timeout interval specified is the maximum value. You do not need to wait for the maximum timeout to be reached. Most commands finish within the set maximum timeout interval.

NetApp Knowledgebase Answer 1001111: NetApp Storage Replication Adapter 4.0/7.X for ONTAP Sizing Guide

VMware documentation on modifying SAN Provider settings has more information.

Vmware Site Recovery Manager Documentation: Change Storage Settings