If you use Site Recovery Manager to test or recover a large number of virtual machines, you might need to modify the default Site Recovery Manager settings to achieve the best possible recovery times in your environment or to avoid timeouts.

In large environments, Site Recovery Manager might simultaneously power on or power off large numbers of virtual machines. Simultaneously powering on or powering off large numbers of virtual machines can create a heavy load on the virtual infrastructure, which might lead to timeouts. You can modify certain Site Recovery Manager settings to avoid timeouts, either by limiting the number of power on or power off operations that Site Recovery Manager performs concurrently, or by increasing the timeout periods.

The limits that you set on power on or power off operations depend on how many concurrent power on or power off operations your infrastructure can handle.

You modify certain options in the Advanced Settings menus in the vSphere Client or in the Site Recovery Manager client plug-in. To modify other settings, you edit the vmware-dr.xml configuration file on the Site Recovery Manager Server. Always modify settings by using the client menus when an option exists. If you modify settings, you must make the same modifications on the Site Recovery Manager Server and vCenter Server instances on both the protected and recovery sites.

For descriptions of the settings that you can change, see Settings for Large Site Recovery Manager Environments.

1

Right-click a cluster in the vCenter Server Inventory and select Edit Settings > vSphere DRS > Advanced Options.

2

Set the srmMaxBootShutdownOps setting.

Option

Description

Option text box

Type srmMaxBootShutdownOps.

Value text box

Type the maximum number of boot shutdown operations, for example 32.

3

Click OK to save your changes.

4

Log into the Site Recovery Manager Server host.

5

Open the vmware-dr.xml file in a text editor.

You find the vmware-dr.xml file in the C:\Program Files\VMware\VMware vCenter Site Recovery Manager\config folder.

6

Change the defaultMaxBootAndShutdownOpsPerCluster and defaultMaxBootAndShutdownOpsPerHost settings in the vmware-dr.xml file:


<config>
...
   <defaultMaxBootAndShutdownOpsPerCluster>24</defaultMaxBootAndShutdownOpsPerCluster>
   <defaultMaxBootAndShutdownOpsPerHost>4</defaultMaxBootAndShutdownOpsPerHost>
...
</config>
7

Restart the Site Recovery Manager Server to apply the new settings.

8

Click Sites in the left pane, right-click the site on which to change settings, and select Advanced Settings.

9

Select vrReplication and increase the synchronizationTimeout setting.

For example, increase the synchronizationTimeout value to 7200 seconds.

10

Select storage and increase the commandTimeout setting.

For example, increase the commandTimeout value to 3600 seconds.

11

Click OK to save your changes.