Patching Imanager; Performance Tuning; Using Dynamic Groups With Rbs; Role Assignments - Novell IMANAGER 2.7.3 - ADMINISTRATION Administration Manual

iManager services are now highly available; however, any live sessions are not failed over. If a
service fails in the middle of user operations, users must reauthenticate and restart whatever
operations were interrupted.
Because iManager and Tomcat are already running (Active/Active) on the other nodes, there is no
load time for these applications if Novell Cluster Services has to migrate (move) the virtual IP to
another node.
There is little benefit in using an Active/Passive cluster because it requires much more configuration
and makes you wait the entire load time for each failover. If you really want iManager configured as
an Active/Passive clustered resource, you must create a cluster resource that loads and unloads
iManager and its dependencies (such as Tomcat). This identical configuration of iManager then
needs to be done on all nodes where you want iManager highly available.

10.6 Patching iManager

Patching a server is as easy as installing a module. Any updates for iManager are packaged into an
plug-in package (NPM) file. This file is installed like any other plug-in.
1 In the Configure view, select Plug-in Module Installation.
2 Select Available Novell Plug-in Modules.
3 Select the patch from the download list or Click Add.
4 Browse to the location of the patch file, then click OK.
5 Select the patch from the list, then click Install.
The server is patched with the latest code.
6 Restart Tomcat when the install is finished.

10.7 Performance Tuning

The following are tips for enhancing speed and efficiency.

10.7.1 Using Dynamic Groups with RBS

Disable Dynamic Group support for RBS if you are not using this feature. By default, Dynamic
Group support is enabled and, when used, significantly taxes resources because of the extensive
searches it conducts.
1 In the Configure view, click iManager Server > Configure iManager.
2 Select the RBS tab, then deselect Enable Dynamic Groups.

10.7.2 Role Assignments

If you have assigned more than five users to a role within the same scope, consider using Group
objects to reduce the number of role assignments and make RBS administration more efficient. By
doing so, you have fewer objects to update and you can manage the Group object by adding and
removing members.
Also, consider using Dynamic Group objects. You can set up User objects to match a Dynamic
Group search criteria.
106 Novell iManager 2.7.3 Administration Guide