User guide

Release Notes

Platform and Support

 [Ref. #ICONTROL-15831] Application Servers of the Dell R200 model use a Linux kernel that

does not support 4GB of RAM. This decreases the amount of usable memory in such

systems to 3.3GB.

 [Ref. #ICONTROL-12784] When upgrading iControl, the log window does not auto-scroll to the

most recent logged upgrade event. Consequently, after an upgrade is complete, the

instruction in the log window to reboot is not immediately visible.

Workaround:

Manually scroll to the bottom of the log window to check if the upgrade is

complete.

• In versions of iControl prior to 3.11, it was possible for multiple Application Server Health

Monitoring driver instances to have the same overall URI. When upgrading to iControl

Version 3.11 from previous versions, these URIs will change, so that you will need to

update any iControl Web pages that refer to them.

• If the Application Server swaps heavily, the iControl home page may not respond due to a

known problem with the third-party Web server (Tomcat) which may be indicating that

more memory is required. Check the Historic System Resources in Webmin to verify

available memory and whether memory swapping is occurring. Restart Tomcat on the

Application Server or simply reboot to remedy this problem. A memory upgrade may be

required if the problem persists.

• If a software upgrade of iControl fails during the first attempt, additional attempts to

upgrade the software can result in loss of data. Recovery may consist of removing the

folders

/usr/local/iControl and /usr/local/iControl‐Old from the Application

Server and reinstalling the new build. Make sure a backup of the Application Server is

performed from Webmin before doing this so that the configuration can be restored after

a clean install.

• Ensure that the port settings on switches are set correctly for optimal performance. The

Application Server Ethernet ports eth0 and eth1 are both configured to auto-negotiate.

• When upgrading to 3.00 (and later) from a pre-3.00 release, the MySQL service is

uninstalled as it is being replaced by PostgreSQL. Contact Miranda Technical Support for

instructions if you need to keep your MySQL installation.

• To administer security for a given domain, it is important to launch the administration

application from an Application Server in that domain.

• You should not use the superuser account to perform day-to-day operations as it may not

work for all operations. The superuser account exists primarily to allow configuring access

control for all other accounts. For all other operations, use a real account with

administrator or operator privileges.

• iControl primarily supports English language characters. In some cases, the use of non-

standard characters may not be recognized when used in labeling devices, channels and

parameters in iC Navigator, iC Web and iControl Router.