[cisco-voip] Upgrade Methods

[Frank Arrasmith]

Hey all,
  I have a quick question about best practices/tips during system upgrade,
particularly on the Linux appliance models.  My previous experience with
upgrades has been primarily in a  lab, which have always gone fine,
However, in my new enterprise, we have an 8 server cluster(pub,5 subs, 2
tftp)  running 7.1.5, with critical uptime requirements.  Other than
recommended procedures from the Cisco Upgrade guides, what other practices
or additional procedures do you employ to ensure a smooth upgrade, and/or
to speed the process along?

1. Do you upgrade all in one shot, long maintenance window?  Install,
Reboot , Test?
2. Do you do spread out the install over a few days?  Install over a few
maintenance windows utilizing inactive partitions, then schedule restart
and testing for another maintenance window?  how long of a time period is
it acceptable to spread out?
3. Other then basic call testing, and ensuring that appropriate services
are started/running( we distribute service between the subs), what other
checks do you include?


Thanks in advance.

Frank Arrasmith
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20120302/ddc381c2/attachment.html>