The time that is required for reservation commands to run is affected by the following factors:
The number of shared physical disks in the cluster
The load on the cluster
If the number of shared physical disks in the cluster is large, or if your cluster is heavily loaded, the reconfiguration of Sun Cluster Support for Oracle Real Application Clusters might time out. If such a timeout occurs, increase the reservation step timeout.
To increase the reservation step timeout, increase the Reservation_timeout extension property of the appropriate resource for your storage management scheme.
Storage Management Scheme |
Resource |
---|---|
Solaris Volume Manager for Sun Cluster |
SUNW.rac_svm |
VxVM with the cluster feature |
SUNW.rac_cvm |
Any combination without a volume manager |
SUNW.rac_hwraid |
Details of the extension properties of these resource types are available in the following sections:
# scrgadm -c -j rac_hwraid -x reservation_timeout=350 |
This example sets the timeout for the reservation step of a reconfiguration of Sun Cluster Support for Oracle Real Application Clusters to 350 seconds. In this example, the cluster uses hardware RAID support. This example assumes that the hardware RAID component is represented by an instance of the SUNW.rac_hwraid resource type that is named rac_hwraid.