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MS Disaster Recovery
F
If the Primary Management Server (primary MS) goes down due to an unrecoverable hardware
failure, management server duties can be migrated to an online Standby Management Server
(standby MS) using a simple backup and restore process. After failover, the standby MS is able to
perform all necessary MS functions, including communicating with Enforcement Servers (ESs),
reporting, and making configuration changes. The Novell ZENworks Network Access Control
backup/restore process migrates the endpoint activity database, GUI users/passwords, and other
product configuration items, but does not include system level customizations such as root and non-
root user accounts or passwords.
The following sections contain more information:
Section F.1, "Installation Requirements," on page 457
Section F.2, "Installing the Standby MS," on page 457
Section F.3, "Ongoing Maintenance," on page 458
Section F.4, "Failover process," on page 458
F.1 Installation Requirements
The following items are required as part of the installation of Novell ZENworks Network Access
Control and are essential elements for recovery of an MS.
Primary and Standby Management Servers must each have their own unique license keys, with
equivalent settings (number of ESs and endpoints)
Primary and Standby Management Servers must be assigned an Internet Protocol (IP) address
within the same network (so that when the standby MS temporarily assumes the primary MS's
IP, it is accessible on the network)
F.2 Installing the Standby MS
A standby MS may need to be installed for the recovery of a failed MS. Allow for proper
configuration your hardware and software to accommodate the following items in setup of a standby
MS:
The standby MS should be installed to match the primary MS configuration:
Same version of Novell ZENworks Network Access Control
Same version of test update RPM (RedHat Package Manager)
Same version of BIND (DNS server software) plus any other customizations
Standby MS should be installed with its own:
IP address (different than that of the Primary MS)
License to use without an Internet Connection
Administrative UI user
F
MS Disaster Recovery
457
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