Su-2.05b# camcontrol devlist at scbus2 target 0 lun 0 (pass0,da0) at scbus2 target 3 lun 0 (pass1,da1) ESG-SHV SCA HSBP M10 0.05 at scbus2 target 6 lun 0 (pass2) You will find your CF card somewhere in the above output. Make note of its device name (adX or daX).
This chapter provides the procedures for shutting down and booting a cluster and individual cluster nodes.
For a high-level description of the related procedures in this chapter, see Table 3–1 and Table 3–2.
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The Sun Cluster scshutdown(1M) command stops cluster services in an orderly fashion and cleanly shuts down the entire cluster. You might do use the scshutdown command when moving the location of a cluster. You can also use the command to shut downthe cluster if you have data corruption caused by an application error.
Note –Use the scshutdown command instead of the shutdown or halt commands to ensure proper shutdown of the entire cluster. The Solaris shutdown command is used with the scswitch(1M) command to shut down individual nodes. See How to Shut Down a Cluster or Shutting Down and Booting a Single Cluster Node for more information.
The scshutdown command stops all nodes in a cluster by:
Taking all running resource groups offline.
Unmounting all cluster file systems.
Shutting down active device services.
Running init 0 and bringing all nodes to the OpenBootTM PROM ok prompt on a SPARC based system or to a boot subsystem on an x86 based system. Boot subsystems are described in more detail in “Boot Subsystems” in System Administration Guide: Basic Administration.
If necessary, you can boot a node in non-cluster mode so that the node does not participate in cluster membership. Non-cluster mode is useful when installing cluster software or for performing certain administrative procedures. See How to Boot a Cluster Node in Non-Cluster Mode for more information.
Table 3–1 Task List: Shutting Down and Booting a ClusterTask | For Instructions |
|---|---|
Stop the cluster -Use scshutdown(1M) | See How to Shut Down a Cluster |
Start the cluster by booting all nodes. The nodes must have a working connection to the cluster interconnect to attain cluster membership. | See How to Boot a Cluster |
Reboot the cluster - Use scshutdown At the ok prompt or the Select (b)oot or (i)nterpreter prompt on the CurrentBoot Parameters screen, boot each node individually with the boot(1M) or the b command. The nodes must have a workingconnection to the cluster interconnect to attain cluster membership. | See How to Reboot a Cluster |
How to Shut Down a Cluster
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Do not use send brk on a cluster console to shut down a cluster node. The command is not supported within a cluster.
SPARC: If your cluster is running Oracle Parallel Server or Real Application Clusters, shut down all instances of the database.
Refer to the Oracle Parallel Server or Oracle Real Application Clusters product documentation for shutdown procedures.
Become superuser on any node in the cluster.
Shut down the cluster immediately.
From a single node in the cluster, type the following command.
Verify that all nodes are showing the ok prompt on a SPARC based system or a Boot Subsystem on an x86 based system.
Do not power off any nodes until all cluster nodes are at the ok prompt on a SPARC based system or in a Boot Subsystem on an x86 based system.
If necessary, power off the nodes.
SPARC: Example—Shutting Down a Cluster
The following example shows the console output when stopping normal cluster operation and bringing down all nodes so that the ok prompt is shown. The -g0 option sets the shutdown grace period to zero, -y provides an automatic yes response to the confirmation question. Shutdown messages also appear on the consoles of the other nodes in the cluster.
x86: Example—Shutting Down a Cluster
The following example shows the console output when stopping normal cluster operation and bringing down all nodes. The -g0 option sets the shutdown grace period to zero, -y provides an automatic yes response to the confirmationquestion. Shutdown messages also appear on the consoles of the other nodes in the cluster.
Where to Go From Here
See How to Boot a Cluster to restart a cluster that has been shut down.
How to Boot a Cluster
To start a cluster whose nodes have been shut down and are at the ok prompt or at the Select (b)oot or (i)nterpreter prompt on the Current Boot Parameters screen, boot(1M) each node.
If you make configuration changes between shutdowns, start the node with the most current configuration first. Except in this situation, the boot order of the nodes does not matter.
SPARC:
x86:
Messages are displayed on the booted nodes' consoles as cluster components are activated.
Note –Cluster nodes must have a working connection to the cluster interconnect to attain cluster membership.
Verify that the nodes booted without error and are online.
The scstat(1M) command reports the nodes' status.
Note –If a cluster node's /var file system fills up, Sun Cluster might not be able to restart on that node. If this problem arises, see How to Repair a Full /var File System.
SPARC: Example—Booting a Cluster
The following example shows the console output when booting node phys-schost-1 into the cluster. Similar messages appear on the consoles of the other nodes in the cluster.
x86: Example—Booting a Cluster
The following example shows the console output when booting node phys-schost-1 into the cluster. Similar messages appear on the consoles of the other nodes in the cluster.
How to Reboot a Cluster
Run the scshutdown(1M) command to shut down the cluster, then boot the cluster with the boot(1M) command on each node.
SPARC: If your cluster is running Oracle Parallel Server or Oracle Real Application Clusters, shut down all instances of the database.
Refer to the Oracle Parallel Server or Oracle Real Application Clusters product documentation for shutdown procedures.
Become superuser on any node in the cluster.
Shut down the cluster.
From a single node in the cluster, type the following command.
Each node is shut down.
Note –Cluster nodes must have a working connection to the cluster interconnect to attain cluster membership.
Boot each node.
The order in which the nodes are booted does not matter unless you make configuration changes between shutdowns. If you make configuration changes between shutdowns, start the node with the most current configuration first.
SPARC:
x86:
Verify that the nodes booted without error and are online.
The scstat command reports the nodes' status.
Note –If a cluster node's /var file system fills up, Sun Cluster might not be able to restart on that node. If this problem arises, see How to Repair a Full /var File System.
SPARC: Example—Rebooting a Cluster
The following example shows the console output when stopping normal cluster operation, bringing down all nodes to the ok prompt, then restarting the cluster. The -g0 option sets the grace period to zero, -y provides an automatic yes response to the confirmation question. Shutdown messages also appear on the consoles of other nodes in the cluster.
x86: Example—Rebooting a Cluster
The following example shows the console output when stopping normal cluster operation, bringing down all nodes, then restarting the cluster. TheEsg-shv Scsi Interface
-g0 option sets the grace period to zero, -y provides an automatic yes responseto the confirmation question. Shutdown messages also appear on the consoles of other nodes in the cluster.Use the scswitch(1M) command in conjunction with the Solaris shutdown(1M) command to shut down an individual node. Use the scshutdown command only when shutting down an entire cluster.
Table 3–2 Task Map: Shutting Down and Booting a Cluster NodeTask | For Instructions |
|---|---|
Stop a cluster node - Use scswitch(1M)and shutdown(1M) | |
Start a node The node must have a working connection to the cluster interconnect to attain cluster membership. | |
Stop and restart (reboot) a cluster node - Use scswitch and shutdown The node must have a working connection to the cluster interconnectto attain cluster membership. | |
Boot a node so that the node does not participate in cluster membership - Use scswitch and shutdown, then boot -x or b -x |
How to Shut Down a Cluster Node
Caution –Do not use send brk on a cluster console to shut down a cluster node. The command is not supported within a cluster.
SPARC: If your cluster is running Oracle Parallel Server or Oracle Real Application Clusters, shut down all instances of the database.
Refer to the Oracle Parallel Server or Oracle Real Application Clusters product documentation for shutdown procedures.
Become superuser on the cluster node to be shut down.
Switch all resource groups, resources, and device groups from the node being shut down to other cluster members.
On the node to be shut down, type the following command.
- -S
Evacuates all device services and resource groups from the specified node.
- -h node
Specifies the node from which you are switching resource groups and device groups.
Shut down the cluster node.
On the node to be shut down, type the following command.
Verify that the cluster node is showing the ok prompt or the Select (b)oot or (i)nterpreter prompt on the Current Boot Parameters screen.
If necessary, power off the node.
SPARC: Example—Shutting Down a Cluster Node
The following example shows the console output when shutting down node phys-schost-1. The -g0 option sets the grace period to zero, -y provides an automatic yes response to the confirmation question, and -i0invokes run level 0 (zero). Shutdown messages for this node appear on the consoles of other nodes in the cluster.
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x86: Example—Shutting Down a Cluster Node
The following example shows the console output when shutting down node phys-schost-1. The -g0 option sets the grace period to zero, -y provides an automatic yes response to the confirmation question, and -i0invokes run level 0 (zero). Shutdown messages for this node appear on the consoles of other nodes in the cluster.
Where to Go From Here
See How to Boot a Cluster Node to restart a cluster node that has been shut down.
How to Boot a Cluster Node
If you intend to shut down or reboot other, active nodes in the cluster, wait until the node you are booting has at least reached the login prompt. Otherwise, the node will not be available to take over services from other nodes in the cluster that you shut down or reboot.
Note –Starting a cluster node can be affected by the quorum configuration. In a two-node cluster, you must have a quorum device configured so that the total quorum count for the cluster is three. You should have one quorum count for each node and one quorum count for the quorum device. In this situation,if the first node is shut down, the second node continues to have quorum and runs as the sole cluster member. For the first node to come back in the cluster as a cluster node, the second node must be up and running. The required cluster quorum count (two) must be present.
To start a cluster node that has been shut down, boot the node.
SPARC:
x86:
A cluster node must have a working connection to the cluster interconnect to attain cluster membership.
Verify that the node has booted without error, and is online.
The scstat command reports the status of a node.
Note –If a cluster node's /var file system fills up, Sun Cluster might not be able to restart on that node. If this problem arises, see How to Repair a Full /var File System.
SPARC: Example—Booting a Cluster Node
The following example shows the console output when booting node phys-schost-1 into the cluster.
x86: Example—Booting a Cluster Node
The following example shows the console output when booting node phys-schost-1 into the cluster.
How to Reboot a Cluster Node
If you intend to shut down or reboot other, active nodes in the cluster, wait until the node you are rebooting has at least reached the login prompt. Otherwise, the node will not be available to take over services from other nodes in the cluster that you shut down or reboot.
SPARC: If the cluster node is running Oracle Parallel Server or Oracle Real Application Clusters, shut down all instances of the database.
Refer to the Oracle Parallel Server or Oracle Real Application Clusters product documentation for shutdown procedures.
Become superuser on the cluster node to be shut down.
Shut down the cluster node by using the scswitch and shutdown commands.
Enter these commands on the node to be shut down. The -i 6 option with the shutdown command causes the node to reboot after the node shuts down.
Note –Cluster nodes must have a working connection to the cluster interconnect to attain cluster membership.
Verify that the node has booted without error, and is online.
SPARC: Example—Rebooting a Cluster Node
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The following example shows the console output when rebooting node phys-schost-1. Messages for this node, such as shutdown and startup notification, appear on the consoles of other nodes in the cluster.
x86: Example—Rebooting a Cluster Node
The following example shows the console output when rebooting node phys-schost-1. Messages for this node, such as shutdown and startup notification, appear on the consoles of other nodes in the cluster.
How to Boot a Cluster Node in Non-Cluster Mode
You can boot a node so that the node does not participate in the cluster membership, that is, in non-cluster mode. Non-cluster mode is useful wheninstalling the cluster software or performing certain administrative procedures, such as patching a node.
Become superuser on the cluster node to be started in non-cluster mode.
Shut down the node by using the scswitch and shutdown commands.
Verify that the node is showing the ok prompt or the Select (b)oot or (i)nterpreter prompt on the Current Boot Parameters screen.
Boot the node in non-cluster mode by using the boot(1M) or b command with the -x option.
SPARC:
x86:
SPARC: Example—Booting a Cluster Node in Non-Cluster Mode
The following example shows the console output when shutting down node phys-schost-1 then restarting the node in non-cluster mode. The -g0 option sets the grace period to zero, -y provides an automatic yes response to the confirmationquestion, and -i0 invokes run level 0 (zero). Shutdown messages for this node appear on the consoles of other nodes in the cluster.
x86: Example—Booting a Cluster Node in Non-Cluster Mode
The following example shows the console output when shutting down node phys-schost-1 then restarting the node in non-cluster mode. The -g0 option sets the grace period to zero, -y provides an automatic yes response to the confirmationquestion, and -i0 invokes run level 0 (zero). Shutdown messages for this node appear on the consoles of other nodes in the cluster.
Both Solaris and Sun Cluster software write error messages to the /var/adm/messages file, which over time can fill the /var file system. If a cluster node's /var file system fills up, Sun Cluster might not be able to restart on that node.Additionally, you might not be able to log in to the node.
How to Repair a Full /var File System
If a node reports a full /var file system and continues to run Sun Cluster services, use this procedure to clear the full file system. Refer to “Viewing System Messages” in System AdministrationGuide: Advanced Administration for more information.
Become superuser on the cluster node with the full /var file system.
Clear the full file system.
For example, delete nonessential files that are contained in the file system.
How to Boot a Cluster
This procedure explains how to start a global cluster or zone cluster whose nodes have been shut down. For global-cluster nodes, the system displays the ok prompt on SPARC systems or the Press any key to continue message on the GRUB based x86 systems.
The phys-schost# prompt reflects a global-cluster prompt. Perform this procedure on a global cluster.
This procedure provides the long forms of the Oracle Solaris Cluster commands. Most commands also have short forms. Except for the long and short forms of the command names, the commands are identical.
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- Boot each node into cluster mode.
Perform all steps in this procedure from a node of the global cluster.
- On SPARC based systems, run the following command.
- On x86 based systems, run the following commands.
When the GRUB menu is displayed, select the appropriate Oracle Solaris entry and press Enter.
For more information about GRUB based booting, see Booting a System in Booting and Shutting Down Oracle Solaris 11.2 Systems.
Note - Nodes must have a working connection to the cluster interconnect to attain cluster membership. - If you have a zone cluster, you can boot the entire zone cluster.
- If you have more than one zone cluster, you can boot all zone clusters. Use + instead of the zoneclustername.
- Verify that the nodes booted without error and are online.
The cluster status command reports the global-cluster nodes' status.
When you run the clzonecluster status status command from a global-cluster node, the command reports the state of the zone-cluster node.
Note - If a node's /var file system fills up, Oracle Solaris Cluster might not be able to restart on that node. If this problem arises, see How to Repair a Full /var File System. For more information, see the clzonecluster(1CL) man page.
The following example shows the console output when node phys-schost-1 is booted into the global cluster. Similar messages appear on the consoles of the other nodes in the global cluster. When the autoboot property of a zone cluster is set to true, the system automatically boots the zone-cluster node after booting the global-cluster node on that machine.
When a global-cluster node reboots, all zone cluster nodes on that machine halt. Any zone-cluster node on that same machine with the autoboot property set to true boots after the global-cluster node restarts.
Example 3-5 x86: Booting a ClusterThe following example shows the console output when node phys-schost-1 is booted into the cluster. Similar messages appear on the consoles of the other nodes in the cluster.