Cisco ipv7r-e engine replacement

Background: The company has a Cisco ipv7r-e switch with two engines for SSO, one master and one slave). a certain day, the main engine suddenly went down, then the service is automatically switched to the backup engine, and now a new engine card is purchased to be inserted.

There are several problems before installation:

1. If you want to plug in a new engine, you can synchronize the configuration of the main engine. What configuration do you need? If so, is it enough to configure redundancy and mode SSO on the new plug-in engine? 1. If you want to plug in a new engine, you can synchronize the configuration of the main engine. What configuration do you need? If so, is it enough to configure redundancy and mode SSO on the new plug-in engine?
2. Do two engines have requirements on the SSO mode and software and hardware? In addition to the same IOS version and consistent memory, what should I pay attention?
3. If the IOS version is different, how can I upgrade it? Is the method the same as upgrading a general switch?

Practice: it will be automatically synchronized within 1-2 minutes after being inserted directly. I don't know if it is so simple? ..

This article is from the "may" blog, please be sure to keep this source http://may523.blog.51cto.com/4232517/1281653