Sunday Dec 06, 2015

Oracle Solaris Cluster Manager: Configuring HA for Oracle Solaris Zones

This article gives the insight of Oracle Solaris Zone Wizard implemented in Oracle Solaris Cluster 4.3, whose purpose is for configuring a Highly Available agent for Oracle Solaris Zones with zonepath residing on a failover file system.[Read More]

Tuesday Nov 10, 2015

Oracle Solaris Cluster Manager: Setting Up Geo Disaster Recovery Orchestration

Oracle Solaris Cluster Manager (Cluster Manager) provides a way to set up and administer disaster recovery (DR) orchestration starting in Oracle Solaris Cluster 4.3. Prior to this version, DR orchestration could be administered only by using the command line interface (CLI). The Cluster Manager browser interface makes it easier by providing a user-friendly way of doing it, with either clicks or by typing in the user-defined fields, eliminating the need to memorize the commands and the sub-commands. Providing inline and online help, Cluster Manager also eliminates potential errors by doing appropriate checks.

Prerequisites for DR Orchestration to Be Usable Under Oracle Solaris Cluster Manager 4.3

  • Geographic Edition software is installed.
    # pkg info ha-cluster/group-package/ha-cluster-geo-full

  • Geographic Edition infrastructure is enabled and the Geographic Edition resource groups and resources are running.
    # /usr/cluster/bin/geoadm show
    # /usr/cluster/bin/clresourcegroup status geo-clusterstate geo-infrastructure
    # /usr/cluster/bin/clresource status -g geo-clusterstate,geo-infrastructure

Access the DR Orchestration

In version 4.3, the DR orchestration feature is accessed via the Sites folder in the navigation pane.

Access Sites Details

The site details can be accessed in one of the following ways:

  • Click the site name in the tree under Sites folder in the navigation pane.
  • Click the Sites folder. Then, click the site name in the Sites table in the main panel.

Access Multigroup Details

Browse to the site details page as mentioned above, then click the multigroup name in the Multigroups table.

Access the Details of a Protection Group In a Multigroup

Browse to the Multigroup details page as mentioned above, then click the protection group name in the Protection Groups table.

Creating a Site and a Multigroup

Creating a Site

  • Click the Sites folder. Click the Create button in the Sites table. A wizard will pop up.
  • In the Initial Setup step, enter the Site Name. The role of the current cluster is controller by default. Click the Add Cluster button to add more clusters. Enter the name of the cluster in the table below the button and the role of the cluster. To skip the next step and use the default site properties, check the checkbox.
    Note: In version 4.3, the cluster to be added to the current cluster must have the same password for root user as that of the current cluster.

  • In the Site Properties step, enter the different site property fields.

  • In the Review step, review the already entered values and click Finish.

Creating a Multigroup

  • Browse to the Site details page as mentioned earlier.
  • Click the Create button in the Multigroups table.
  • In the pop-up, enter the multigroup name. The other fields are optional. Then click Create.

DR Orchestration Operations Available in the Cluster Manager Browser Interface

Site Operations

In All Sites Table

  • Create site
  • Join Site
  • Leave Site
  • Validate Site

In Site Details Page

  • Add Cluster to the site
  • Set Role for clusters in the site
  • Accept another cluster in the site as controller
  • Remove a cluster from the site
  • Update site information from another cluster in the site

Multigroup Operations

In the Multigroups Table

  • Create a multigroup
  • Delete a multigroup
  • Update a multigroup information from another cluster in the site
  • Validate a multigroup with another cluster in the site
  • Start Multigroup
  • Stop Multigroup
  • Switch Over Multigroup
  • Take Over Multigroup

In the Protection Groups Table of the Multigroup Details Page

  • Add Protection Group
  • Remove Protection Group

Editing Site and Multigroup Properties

  • Browse to the Site or Multigroup details page.
  • Click the Properties tab at the top below the breadcrumb.
  • Click the Edit button.

  • The area with the Edit button now have Save and Cancel button. The value column changes into editable fields wherever applicable(encircled in blue). Make the changes and click the Save button.

To see more on configuring, administering and CLI options of Oracle Solaris Cluster 4.3 Geographic Edition, follow the links below:

Friday Nov 06, 2015

New choices for Oracle Solaris Cluster Public Networking: Link Aggregation (Trunk & DLMP) and VNIC

From Oracle Solaris Cluster 4.3 and on, in addition to IPMP, cluster is able to use IP over link aggregation and IP over VNIC over link aggregation for public networking.

[Read More]

Tuesday Nov 03, 2015

Configuring a Data Service for Oracle VM Server for SPARC by Using a Graphical Wizard

In earlier releases of Oracle Solaris Cluster,  you were able to configure a data service (sometimes also referred to as an agent) for Oracle VM Server for SPARC only manually using a command line interface. This was tedious, requiring the administrator to run commands on multiple nodes.

With Oracle Solaris Cluster 4.3 comes a new graphical wizard that simplifies the configuration considerably. The wizard, using a few clicks, makes a guest domain, as a black box entity, highly available.

[Read More]

Friday Oct 30, 2015

Introducing the New Cluster Configuration Wizard

Oracle Solaris Cluster users have been using the scinstall command-line interface to configure new clusters in the past. Version 4.3 of the software is introducing a new browser-based wizard that makes this process easier. Users will be able to navigate through a series of panels in a browser to configure a new cluster.

The new cluster configuration wizard in the Oracle Solaris Cluster Manager browser interface has a typical mode and a custom mode. They provide the same degree of customization to the user when configuring a new cluster as the existing interactive scinstall utility, all in a more intuitive interface.

As prerequisites to use this new feature, you will need Oracle Solaris Cluster packages installed on all nodes that are planned to form a new cluster and you need to run the clauth command on all non-control nodes to authenticate the control node, if you haven’t done so previously.

Then you can open a browser and navigate to address “hostname:8998/scm/faces/main”. The “hostname” here stands for the host of the webapp server that Cluster Manager runs on. Note that the host could be the control node (just make sure the Cluster Manager packages are installed on that node) or any machine hosting Cluster Manager that could access the control node. The address will lead you to the login page (shown below). Login as the root role to the control node on this page and you can now start configuring a new cluster.

The panels guide you through the process of configuring a new cluster. You might find the online help pane handy on the right side of the page. At the end of the process, the wizard invokes a script to configure and reboot each node in a sequence automatically. The control node will be the last one in the sequence that is configured and rebooted. When all nodes are rebooted, the new cluster configuration process is completed.


Oracle Solaris Cluster Engineering Blog


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