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.
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.
- Datastores are not created and recovered virtual machines cannot be found.
- ESXihosts become unresponsive tovCenter Serverheartbeat and disconnect fromvCenter Server. If this happens,vCenter Serversends an error toSite Recovery Managerand a test recovery or real recovery fails.
- TheESXihost is available, but rescanning and disk resignaturing exceed theSite Recovery ManagerorvCenter Servertimeouts, resulting in aSite Recovery Managererror.
The storage devices are not ready
when
Site
Recovery Manager
starts the rescan.
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.