Home > Storage > PowerStore > Virtualization and Cloud > Dell PowerStore: VMware Site Recovery Manager Best Practices > Modifying SRM settings for larger environments
VMware Site Recovery Manager ships with a default configuration that is tuned for a large cross-section of environments. However, each environment is unique in terms of architecture, infrastructure, size, and recovery time objective (RTO). Larger or more-complex SRM environments may require tuning adjustments in SRM (listed in the following bullet points) for SRM workflows to carry out their assigned tasks properly. For more information about making adjustments to accommodate such environments, see the SRM documentation section Modify Settings to Run Large Site Recovery manager Environments.
storage.commandTimeout – Min: 0 Default: 300
This option specifies the timeout allowed (in seconds) for running SRA commands in array-based-replication-related workflows. Increasing this value is typically required for larger environments. Recovery plans with many datastores to manage may fail if the storage-related commands take longer than five minutes to complete. For larger environments, increase this value (for example, to 3600 or higher) in the advanced SRM settings.
<config>
<defaultMaxBootAndShutdownOpsPerCluster>32
</defaultMaxBootAndShutdownOpsPerCluster>
</config>
You can configure this value per cluster by editing the srmMaxBootShutdownOps in vSphere DRS Advanced Options. This value overrides a value specified in the vmare-dr.xml file.
<config>
<defaultMaxBootAndShutdownOpsPerHost>4
</defaultMaxBootAndShutdownOpsPerHost>
</config>
The vmware-dr.xml file is located in the config directory that resides in the SRM installation folder. The specific location varies depending on the operating system and SRM version. For example:
Windows:
C:\Program Files\VMware\VMware vCenter Site Recovery Manager\config\vmware-dr.xml
Virtual Appliance:
/opt/vmware/srm/conf/vmware-dr.xml