Step 1,

　　檢查現有PI版本：2.0.0.0.294

　　PI01/admin# sho version

　　Cisco Application Deployment Engine OS Release: 2.0

　　ADE-OS Build Version: 2.0.6.003-px-build

　　ADE-OS System Architecture: x86_64

　　Copyright (c) 2005-2010 by Cisco Systems, Inc.

　　All rights reserved.

　　Hostname: PI01

　　Version information of installed applications

　　---------------------------------------------

　　Cisco Prime Infrastructure

　　------------------------------------------

　　Version : 2.0.0.0.294

　　PI01/admin#

　　Step2:

　　備份你的PIdatabase: 確保你的disk space夠用。

　　1，檢查你的DefaultRepo folder是否有最新的備份。沒有的話，就重新備份一下。

　　PI01/admin# backup filename repository defaultRepo application

　　PI01/admin# dir disk:/defaultRepo/

　　Directory of disk:/defaultRepo/

　　2222222222Jan 01 2015 11:13:16 PI01-140194-0320.tar.gpg

　　3111111111 Jan 22 2015 09:46:53 PI01-150122-0237.tar.gpg -----> ****最新的databasebackup, 文件會很大(我備份花了將近10個小時****)

　　1738046399 Jan 30 2015 13:41:53 PI-Upgrade-2.1.0.0.87.tar.gz ----> ****新的2.1升級文件，等下會用到***

　　PI01/admin#

　　2， 將backup的文件copy到一個TFTP / TFP/ NFS server備用，in case升級失敗：

　　PI01/admin# copy disk:/defaultRepo/PI01-150122-0137.tar.gpg tftp://10.***/ --->確保server有足夠空間。 tftp會比較慢，FTP比較快

　　Step 3:

　　檢查新的升級文件 是否已經copy到PI2.0里面：

　　PI01/admin# show repository defaultRepo

　　2222210206 Jan 14 201511:13:16 PI01-140094-0320.tar.gpg

　　1111119795 Jan 28 2015 09:46:53 PI01-150122-0137.tar.gpg

　　1738046399 Jan 30 2015 13:41:53 PI-Upgrade-2.1.0.0.87.tar.gz ------> ****確認文件大小和你下載一樣****

　　Step 4:暫停NCSservice--:

　　PI10/admin# ncs stop

　　Stopping Network Control System...

　　This may take a few minutes...

　　Network Control System successfully shutdown.

　　Plug and Play Gateway is being shut down..... Please wait!!!

　　Stop of Plug and Play Gateway Completed!!

　　SAM daemon process id does not exist

　　DA daemon process id does not exist

　　DA syslog daemon process id does not exist

　　Step 5: 升級過程:

　　PI10/admin# application upgrade PI-Upgrade-2.1.0.0.87.tar.gzdefaultRepo

　　Save the current ADE-OS running configuration? (yes/no)[yes] ?

　　Generating configuration...

　　Saved the ADE-OS running configuration to startupsuccessfully

　　Please ensure you have a backup of the system beforeproceeding.

　　Proceed with the application upgrade ? (yes/no) [yes] ?

　　DO NOT press ^C while the upgrade is in progress

　　Aborting upgrade with a ^C may leave the system in aunrecoverable state

　　Initiating Application Upgrade...

　　Stage 1 of 7:Transferring file ...

　　-- complete.

　　Stage 2 of 7:Unpacking file ...

　　-- complete.

　　*** System will reboot after a successful installation ofthis package ***

　　After reboot, please login again into the server to checkstatus

　　Stage 3 of 7:Executing pre-install ...

　　[WARNING] System will reboot after a successful installationof this package (after Stage 7).

　　After reboot, please login again into the server to checkstatus.

　　No action required at this time. Continuing with Stage 3.

　　**********這里需要10分鐘左右**************

　　-- complete.

　　Stage 4 of 7:Upgrading binaries ...

　　-- complete.

　　Prime InfrastructureApplication installation completed

　　************這里需要等30分鐘左右*************

　　Stage 5 of 7: Retrieving system version ...

　　-- complete.

　　Stage 6 of 7: Updating Database Schema ...

　　: This could take long time based on the existing data size.

　　Stage 1 of 5: Pre Migration Schema Upgrade ...

　　-- completed at: 2015-02-07 00:14:26.188, Time Taken : 0 hr, 2 min, 57 sec

　　Stage 2 of 5: Schema Upgrade ...

　　: This could take long time based on the existing data size.

　　-- completed at: 2015-02-07 00:20:31.298, Time Taken : 0 hr, 6 min, 5 sec

　　Stage 3 of 5: Post Migration Schema Upgrade ...

　　-- completed at: 2015-02-07 00:49:06.815, Time Taken : 0 hr, 28 min, 35 sec

　　Stage 4 of 5: Enabling DB Constraints ...

　　-- completed at: 2015-02-07 01:19:41.714, Time Taken : 0 hr, 30 min, 29 sec

　　Stage 5 of 5: Finishing Up ...

　　-- completed at: 2015-02-07 01:20:35.603, Time Taken : 0 hr, 0 min, 53 sec

　　-- complete.

　　Stage 7 of 7: Re-enabling Database Settings ...

　　-- complete.

　　Upgrade Finished. Server is restarting . Please wait ..

　　% This application Install or Upgrade requires reboot, rebooting now...

　　Broadcast message from root (pts/0) (Sat Feb 7 01:34:50 2015):

　　The system is going down for reboot NOW!

　　Application upgrade successful

　　Step 6： 升級完成后，查看新的firmware

　　PI01/admin# sho ver

　　Cisco Application Deployment Engine OS Release: 2.0

　　ADE-OS Build Version: 2.0.6.003-px-build

　　ADE-OS System Architecture: x86_64

　　Copyright (c) 2005-2010 by Cisco Systems, Inc.

　　All rights reserved.

　　Hostname: PI01

　　Version information of installed applications

　　---------------------------------------------

　　Cisco Prime Infrastructure

　　------------------------------------------

　　Version : 2.1.0.0.87

　　PI01/admin#

　　Step7, 下面是PI 2.1 升級2.2.

　　1,備份2.1的數據：

　　PI01/admin# backup filename repositorydefaultRepo application

　　2,復制2.1的database 到TFTPserver做備用，

　　PI01/admin# copydisk:/defaultRepo/PI01-150207-0330.tar.gpg tftp://10.8.8.8/

　　3, 安裝新的Prime Infrastructure 2.2的版本：

　　PI02/admin# sho ver

　　Cisco Application Deployment Engine OS Release: 2.3

　　ADE-OS Build Version: 2.3.0.101-root

　　ADE-OS System Architecture: x86_64

　　Copyright (c) 2005-2010 by Cisco Systems, Inc.

　　All rights reserved.

　　Hostname: PI02

　　Version information of installed applications

　　---------------------------------------------

　　Cisco Prime Infrastructure

　　********************************************************

　　Version : 2.2.0

　　Build : 2.2.0.0.158

　　4, 恢復2.1的database到PI 2.2的版本：

　　恢復注意事項：(只能從1.4和2.1的版本恢復)

　　=================================

　　Rrestoring From Backups

　　You cannot restore from backups using the Prime Infrastructureuser interface. You must use the Prime Infrastructure restore command.You can restore to the same host that you were using, or to a different host.

　　You cannot restore portions of a backup.

　　You can restore to Prime Infrastructure 2.2 from the followingbackup versions only:

　　· Prime Infrastructure 1.4

　　· Prime Infrastructure 2.1

　　====================================

　　PI02/admin# restore P201-150209-0330.tar.gpg repository defaultRepo application NCS

　　* NOTE *

　　If the system console is disconnected or got cleared on session timeout

　　run 'show restore log' to see the output of the last restore session.

　　Restore will restart the application services. Continue? (yes/no) [yes] ?

　　DO NOT press ^C while the restoration is in progress

　　Aborting restore with a ^C may leave the system in a unrecoverable state

　　Initiating restore. Please wait...

　　Restore Started at 02/10/15 03:57:03

　　Stage 1 of 9: Transferring backup file ...

　　-- completed at 02/10/15 04:41:38

　　Stage 2 of 9: Decrypting backup file ...

　　-- completed at 02/10/15 06:47:07

　　Stage 3 of 9: Unpacking backup file ...

　　-- completed at 02/10/15 06:48:21

　　Stopping strongSwan IPsec...

　　Stage 4 of 9: Decompressing backup ...

　　-- completed at 02/10/15 06:53:30

　　Stage 5 of 9: Restoring Support Files ...

　　-- completed at 02/10/15 06:54:09

　　Stage 6 of 9: Restoring Database Files ...

　　-- completed at 02/10/15 06:55:15

　　Stage 7 of 9: Recovering Database ...

　　-- completed at 02/10/15 14:56:10

　　Stage 8 of 9: Updating Database Schema ...

　　Stage 1 of 5: Pre Migration Schema Upgrade ...

　　-- completed at: 2015-02-10 19:51:57.565

　　, Time Taken : 4 hr, 44 min, 52 sec

　　Stage 2 of 5: Schema Upgrade ...

　　: This could take long time based on the existin

　　g data size.

　　-- completed at: 2015-02-10 20:18:50.979

　　, Time Taken : 0 hr, 26 min, 53 sec

　　Stage 3 of 5: Post Migration Schema Upgrade ...

　　-- completed at: 2015-02-10 21:56:06.708

　　, Time Taken : 1 hr, 37 min, 15 sec

　　Stage 4 of 5: Enabling DB Constraints ...

　　-- completed at: 2015-02-10 21:57:53.7,

　　Time Taken : 0 hr, 1 min, 17 sec

　　Stage 5 of 5: Finishing Up ...

　　-- completed at: 2015-02-10 21:59:03.972

　　, Time Taken : 0 hr, 1 min, 10 sec

　　-- completed at 02/10/15 22:08:09

　　Stage 9 of 9: Re-enabling Database Settings ...

　　-- completed at 02/10/15 22:08:09

　　Total Restore duration is: 18h:11m:06s

　　INFO: Restore completed successfully.

　　Starting PI Server... This may take some time

　　Starting Prime Infrastructure...

　　This may take a while (10 minutes or more) ...

　　Prime Infrastructure started successfully.

　　Finished at : Tue Feb 10 23:02:26 2015

　　====================================

　　到此，所有的升級都已經完成，經過我的經驗，所有的license都可以restore， 不需要重新申請license.

　　另外，AAA的認證，只需要重新刷新下，不需要重新配置, Domain ID就可以登錄了。