User guide

Upgrading the Software Getting Started and Upgrading AOS
page 1-8 OmniSwitch AOS Release 7 Switch Management Guide March 2015
Switch Maintenance
It's recommended to perform switch maintenance prior to performing any upgrade. This can help with
preparing for the upgrade and removing unnecessary files. The following steps can be performed at any
time prior to a software upgrade. These procedures can be done using Telnet and FTP, however using SSH
and SFTP/SCP are recommended as a security best-practice since Telnet and FTP are not secure.
1 Verify current date, time, AOS and model of the switch:
-> show system
2 Remove any old tech_support.log files, tech_support_eng.tar files:
-> rm *.log
-> rm *.tar
3 Verify that the /pmd and /pmd/work directories are empty. If they have files in them check the date on
the files. If they are recently created files (<10 days), contact Alcatel-Lucent Service & Support. If not,
they can be deleted.
-> rm /flash/pmd/*.*
-> rm /flash/pmd/work/*.*
4 Use the 'show running-directory' command to determine what directory the switch is running from and
that the configuration is certified and synchronized. If the configuration is not certified and synchro-
nized,issue the command 'write memory flash-synchro’.
-> show running-directory
5 If you do not already have established baselines to determine the health of the switch you are upgrad-
ing, now would be a good time to collect them. Using the show tech-support series of commands is an
excellent way to collect data on the state of the switch. The show tech support commands automatically
create log files of useful show commands in the /flash directory. You can create the tech-support log files
with the following commands:
-> show tech-support
-> show tech-support layer2
-> show tech-support layer3