New to WAAS, order of upgrading CM, then Accelerators?

[Stian666Naits]

Hi everyone,

I"m assigned to upgrade our code on WAAS devices and I would like to ask some opinions and if my approach is correct.

We have one Central Manager(OE547) with the 4.4.3b universal code on it. All the accelerators in the field have the 4.4.3b accelerator code on them(also OE547). Then in our data center we have two OE7371 models.

I found some literature and was wondering if it's as simple as just following these steps?

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/upgrade/guide/waas_upgrade-50.html#wp149849

Is there an order to which ones i should do first? If I upgrade the CM with the new code, will WAN traffic still be optimizing since the remote locations are still running the old code?

This has to be done in a few days, upgrading a few devices after hours. So a simple code upgrade pushed from the CM will reboot the remote device and it will start optmizing again, are there any steps that I have to take on the remote device just upgraded? CMS configurations will be saved when it's rebooted?

Sorry for the newbie questions. I'm working on becoming an engineer at our company so I'm taking on tasks to learn as much I can. I appreciate the feedback.

Thank You,

Regards.

[Felix Arrieta]

hi Stian,

Just remember to upgrade the CM first, then you  decide which devices to upgrade first or last,  look for Upgrading Multiple Devices Using Device Groups;

http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v441/configuration/guide/maint.html#wp1126720

Also, when you upgrade the CM with the new code the WAE's will continue optimazing traffic no need to worry, again the urgency is on having the CM running the highest software version, there should not be scenarios where the Accelerator WAE runs on a  higher version than the CM itself.

The CMS configurations will be save  but the guide recommends to run a backup first.

good luck on your career goals,

Felix