/**
声明：此随笔为在youtube上学习‘ IBM DB2 LUW/UDB DBA Tutorial for Beginners' 课程笔记.
YouTube视频连接：https://www.youtube.com/watch?v=Pjvwm4rC5Ok&list=PLCNIKwM6iuv7g1hDWDcNkc66vZuVJmvZg
**/
Upgrade:
Reading the documentation + Preparing the plan
Check pre-requisites
Take backup!
1. Copy 11.1 to /mnt/db2/product folder
2. Extract & install in /opt/ibm/db2/V11.1
*Don't create instance
3. Make sure you stop 10.1 instance (db2inst1, db2fenc1)
4. As a root:
cd /opt/ibm/db2/V11.1/instance
./db2iupgrade -u db2fenc1 db2inst1
5. Upgrade databases
db2 "upgrade database <database name>"