Installation & Operation Manual 226 Document # LTRT-92224
Mediant 8000
27.5 The Operating System on the SC Boards
Each SC board has a generic operating system installed on it. The exact version of
the operating system (OS) depends on the hardware revision of the specific SC board:
SC board Rev.1 (SC Rev.1) – uses the SUN Solaris 9 OS
SC board Rev.2 (SC Rev.2) – uses the Linux OS
The Operating system is installed on the SC boards during the manufacture process
and is specifically configured for optimal performance of the Mediant 8000 software.
The Mediant 8000 software automatically configures all required OS services and
provides optimized user-friendly CLI commands for optional configuration (e.g. the
tools user command is provided for user management). No additional “administration
tasks” are required on the SC boards. Moreover, any attempt to modify the default OS
configuration or install additional software on SC boards will be dealt with as a
malicious action and reported as a “Security Alarm” – since it may potentially affect the
normal operation of the Mediant 8000 software (see 'File System Integrity Check' on
page 316 for details).
Note: Do not perform any “generic OS administration” on the SC boards (e.g. do not
enable/disable OS services and do not modify the default OS configuration files).
The Mediant 8000 software automatically configures the underlying OS for optimal
performance and may not be able to operate correctly if the OS configuration is
modified.
All relevant OS security and bug fixes are delivered as part of the Mediant 8000
software installation package. See 'Installing Mediant 8000 Software' on page 129 and
'Online Software Upgrade' on page 811 for details.
The OS (re)installation on the SC board is therefore a very uncommon process that is
typically performed in the following cases:
During the initial SC board installation (typically in a production environment or
after hard disk replacement).
When the OS installation and/or configuration is damaged by a malicious user or
virus software.