Sun Cluster software installation automatically assigns SCSI reservations to all storage devices. Use the following procedures to check the settings of devices and, if necessary, to override the setting for a device.
How to Display the Default Global SCSI Protocol Settings for All Storage Devices
How to Change the Default Global SCSI Protocol Settings for All Storage Devices
This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands.
Become superuser or assume a role that provides solaris.cluster.read RBAC authorization.
From any node, display the current global default SCSI protocol setting.
# cluster show -t global |
For more information, see the cluster(1CL) man page.
The following example displays the SCSI protocol settings for all storage devices on the cluster.
# cluster show -t global === Cluster === Cluster Name: racerxx installmode: disabled heartbeat_timeout: 10000 heartbeat_quantum: 1000 private_netaddr: 172.16.0.0 private_netmask: 255.255.248.0 max_nodes: 64 max_privatenets: 10 global_fencing: scsi3 Node List: phys-racerxx-1, phys-racerxx-2 |
This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands.
Become superuser or assume a role that provides solaris.cluster.read RBAC authorization.
From any node, display the SCSI protocol setting of the storage device.
# cldevice show device |
The name of the device path or a device name.
For more information, see the cldevice(1CL)man page.
The following example displays the SCSI protocol for the device /dev/rdsk/c4t8d0.
# cldevice show /dev/rdsk/c4t8d0 === DID Device Instances === DID Device Name: /dev/did/rdsk/d3 Full Device Path: phappy1:/dev/rdsk/c4t8d0 Full Device Path: phappy2:/dev/rdsk/c4t8d0 Replication: none default_fencing: global |
The default fencing setting of a single storage device overrides the global setting when the device's default fencing is set to pathcount or scsi3. If the default fencing setting of a storage device is set to global, the storage device will use the global setting. For example, if a storage device has the default setting pathcount, the setting will not change if you use this procedure to change the global SCSI protocol settings to scsi3. You must use the How to Change the SCSI Protocol for a Single Storage Device procedure to change the default setting of a single device.
To change the default fencing setting for a quorum device you must unconfigure the device, change the setting, and reconfigure the quorum device.
This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands.
Become superuser or assume a role that provides solaris.cluster.modify RBAC authorization.
Set the SCSI protocol for all storage devices that are not quorum devices.
cluster set -p global_fencing={scsi3 | pathcount} |
Sets the current global default fencing algorithm for all shared devices.
Uses the SCSI-3 protocol.
Determines the fencing protocol by the number of DID paths that are attached to the shared device.
The following example sets the SCSI protocol for all storage devices on the cluster to the SCSI-3 protocol.
# cluster set -p global_fencing=scsi3 |
To change the default fencing setting for a quorum device you must unconfigure the device.
This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands.
Become superuser or assume a role that provides solaris.cluster.modify RBAC authorization.
Set the SCSI protocol of the storage device.
# cldevice set -p default_fencing ={pathcount | scsi3 | global} device |
Modifies the device properties.
Determines the fencing protocol by the number of DID paths that are attached to the shared device.
Uses the SCSI-3 protocol.
Uses the global default fencing setting.
Specifies the name of the device path or device name.
For more information, see the cluster(1CL) man page.
The following example sets the device 11, specified by device number, to the SCSI-3 protocol.
# cldevice set -p default_fencing=scsi3 5 |