6.1

Table Of Contents
Cause
Excessive I/O traffic on one or more of the virtual machines in the protection group causes the
synchronization to time out before it can finish. This can be because of heavy traffic. For example, setting the
logging level to trivia mode can generate heavy I/O traffic.
Solution
1 Log in to the Site Recovery Manager Server host.
2 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.
3 Add a <topology><drTaskCleanupTime> element to the vmware-dr.xml file.
You can add the <topology> element anywhere at the top level in the <Config> tags. Set the value of
<drTaskCleanupTime> to at least 300 seconds. If you set the logging level to trivia, set
<drTaskCleanupTime> to 1000 seconds.
<topology>
<drTaskCleanupTime>1000</drTaskCleanupTime>
</topology>
4 Save and close the vmware-dr.xml file.
5 Restart the Site Recovery Manager Server service to apply the new settings.
Rescanning Datastores Fails Because Storage Devices are Not Ready
When you start a test recovery or a recovery, some SRAs send responses to Site Recovery Manager before a
promoted storage device on the recovery site is available to the ESXi hosts. Site Recovery Manager rescans
the storage devices and the rescan fails.
Problem
If storage devices are not fully available yet, ESXi Server does not detect them and Site Recovery Manager
does not find the replicated devices when it rescans. This can cause several problems.
n
Datastores are not created and recovered virtual machines cannot be found.
n
ESXi hosts become unresponsive to vCenter Server heartbeat and disconnect from vCenter Server. If
this happens,vCenter Server sends an error to Site Recovery Manager and a test recovery or real
recovery fails.
n
The ESXi host is available, but rescanning and disk resignaturing exceed the Site Recovery Manager or
vCenter Server timeouts, resulting in a Site Recovery Manager error.
Cause
The storage devices are not ready when Site Recovery Manager starts the rescan.
Solution
To delay the start of storage rescans until the storage devices are available on the ESXi hosts, increase the
storageProvider.hostRescanDelaySec setting to a value between 20 and 180 seconds. See “Change Storage
Provider Settings,” on page 144.
NOTE In Site Recovery Manager 5.1 and earlier, you might have used the
storageProvider.hostRescanRepeatCnt parameter to introduce a delay in recoveries. Use the
storageProvider.hostRescanDelaySec parameter instead.
Site Recovery Manager Administration
176 VMware, Inc.