Hi - I'm lookign for a guide that details the steps required to replace a failed supervisor720 that is now / would be the standby. I have seen several situations where the replacmeemt module is inserted & does not drop straight in where the old one left off- for example the sup-bootflash is unreadable (probably needs formatting - is this due to old versions of ios using diff formats for example?), replacement module having different ios/no ios etc and other such issues. Is there a clear document that explains not just how to configure redundancy, but how to get past the failure & back up to a fully redundant mode. I'm looking for a doc that walks through all of the gotcha's.