WebSphere ND Migration 7.0 to 8.0 / 9.0 on Same Machine.

Prequesties check:
1. Check O.S prerequisites.
2. Source WAS 7.0 should be completely stopped.
3. Disk space needs to be there. 
4. Targeted WAS 8.0 / 9.0 needs to be installed on a machine.
5. Increase the number of open files limits on the O.S level (ulimit -a).


Tools for Migration
a) Migration 9 GUI based (WCT tool).
b) Command-line (i) WASPreUpgrade (ii) WASPostUpgrade


I have three profiles in existing WAS 7.0(in my scenario), 
a) Dmgr01
b) Custom01
c) Custom02

NOTE: Before proceeding always take config or profile backup.


*****************************************************************************************************
Commands for backup.

a) Dmgr01 backup

Command:
./backupConfig.sh /app/WAS7-APP-ND/IBM/WebSphere/AppServer/profiles/Mig-Backup_Dmgr01.zip   
-profileName Dmgr01 

 b) Custom01 backup

Command:
./backupConfig.sh /app/WAS7-APP-ND/IBM/WebSphere/AppServer/profiles/Mig-Backup_Custom01.zip   
-profileName Custom01 

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

• Install New instance of WAS 8.0 / 9.0 on Machine.
• IMP NOTE: Before proceeding, need to create the same profiles in WAS 8.0 / 9.0  with having the same nodeName, cell name,  hostname, servers instances & no applications.

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

A) create the same profile "Dmgr01" in WAS 8.0 having same nodeName, cellName,  hostname , server instance & with no applications.

Command:
/app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/manageprofiles.sh -create   
-profileName Dmgr01 
-profilePath /app/WAS8-APP-ND/IBM/WebSphere/AppServer/profiles/Dmgr01   
-templatePath /app/WAS8-APP-ND/IBM/WebSphere/AppServer/profileTemplates/management   
-serverType DEPLOYMENT_MANAGER   
-nodeName Dmgr01Node  -cellName Dmgr01NodeCell -hostName MBox  -defaultPorts 
-enableAdminSecurity true -adminUserName was -adminPassword was123

B) create the same profile "Custom01" in WAS 8.0 / 9.0 having the same nodeName, cellName,  hostname, server instance & with no applications installed.

Command:
/app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/manageprofiles.sh -create  
-profileName Custom01 -defaultPorts  
-profilePath /app/WAS8-APP-ND/IBM/WebSphere/AppServer/profiles/Custom01  
-templatePath /app/WAS8-APP-ND/IBM/WebSphere/AppServer/profileTemplates/managed  
-nodeName Custom01Node  -cellName Custom01Cell  -hostName MBox -federateLater true

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


Create a folder on targeted WAS 8.0, to place WASPreUpgrade migration command files.

Command:
mkdir -p /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Dmgr01
mkdir -p /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom01
mkdir -p /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom02

WASPreUpgrade 

• NOTE: Stop all the WAS services on 7.0.
• Run WASPreUpgrade command from WAS8-APP-ND/IBM/WebSphere/AppServer/bin/ for "Dmgr01" profile.

Command:
/app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/WASPreUpgrade.sh   
/app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Dmgr01  
/app/WAS7-APP-ND/IBM/WebSphere/AppServer/    
-traceString Migration.Flow=finer:Migration.*=fine   
-traceFile /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Dmgr01_WASPreUpgrade.trace  
-oldProfile Dmgr01   -username was   -password was123 

Reference URL :
https://www.ibm.com/support/knowledgecenter/en/SSEQTP_8.5.5/com.ibm.websphere.migration.base.doc/ae/rmig_WASPreUpgrade.html

Syntax: 
*********************************************************************************
WASPreUpgrade.sh backupDirectory 
                 currentWebSphereDirectory
                 [-traceString trace_spec [-traceFile file_name ]]
                 [-machineChange true | false]
                 [-oldProfile profile_name]
                 [-workspaceRoot profile1=user_workspace_folder_name_1;profile2=user_workspace_folder_name_2]
                 [-username < user name >]
                 [-password < password >]
                 [-javaoption < -Xms...m > -javaoption < -Xmx...m > ]
                 [-requireEmbeddedDBMigration true | false]
                 [-keepDmgrEnabled true | false]
*********************************************************************************

Similarly  

• Run WASPreUpgrade command from WAS8-APP-ND/IBM/WebSphere/AppServer/bin/ for "Custom01" profile.

Command:
/app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/WASPreUpgrade.sh   
/app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom01  
/app/WAS7-APP-ND/IBM/WebSphere/AppServer/    
-traceString Migration.Flow=finer:Migration.*=fine   
-traceFile /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom01_WASPreUpgrade.trace  -oldProfile Custom01   -username was   -password was123 

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

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

WASPostUpgrade 

• Run WASPostUpgrade command from WAS8-APP-ND/IBM/WebSphere/AppServer/bin/ for "Dmgr01" profile.

Command:
/app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/WASPostUpgrade.sh  
/app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Dmgr01  
-oldProfile Dmgr01  -profileName Dmgr01 -scriptCompatibility true   
-replacePorts false  -includeApps true  -keepAppDirectory false  
-traceString Migration.Flow=finer:Migration.*=fine 
-traceFile /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Dmgr01_WASPostUpgrade.trace 
-username was   -password was123

https://www.ibm.com/support/knowledgecenter/SS7K4U_8.5.5/com.ibm.websphere.migration.nd.doc/ae/rmig_WASPostUpgrade.html

Syntax: 
*****************************************************************************************************
WASPostUpgrade.sh backupDirectory
                     [-username userID]
                     [-password password]
                     [-oldProfile profile_name]
                     [-profileName profile_name]
                     [-scriptCompatibility true | false]
                     [-portBlock port_starting_number]
                     [-backupConfig true | false]
                     [-replacePorts true | false]
                     [-includeApps true | false | script]
                     [-keepDmgrEnabled true | false]
                     [-requestTimeout seconds]
                     [-javaoption -Xms...m -javaoption -Xmx...m]
                     [[-appInstallDirectory user_specified_directory] | 
                      [-keepAppDirectory true | false]]
                     [-traceString trace_spec [-traceFile file_name]]
*****************************************************************************************************


IMP NOTE:
Start the Dmgr01 profile, and force delete the already federate nodes in dmgr from DMGR console.
Since it contains WAS 7.0 node agents.

• Run WASPostUpgrade command from WAS8-APP-ND/IBM/WebSphere/AppServer/bin/ for "Custom01" profile.

Command:
 /app/WAS8-APP-ND/IBM/WebSphere/AppServer/bin/WASPostUpgrade.sh  
/app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom01  
-oldProfile Custom01  -profileName Custom01 -scriptCompatibility true   -replacePorts false  
-includeApps true  -keepAppDirectory false  
-traceString Migration.Flow=finer:Migration.*=fine 
-traceFile /app/WAS8-APP-ND/IBM/WebSphere/WASMigration/Custom01_WASPostUpgrade.trace -username was   -password was123


NOTE: The above command will automatically federate the node, with the running Dmgr01 profile.

For understanding.

1. stop WAS 7.0 services & profiles completely.
2. take existing WAS 7.0 Backup.
3. install WAS 8.0 and create same profiles on new WAS 8.0 /9.0 , having same nodeName, cellName,  hostname, server instance & with no applications.
4. Run $WAS8_HOME/bin/WASPreUpgrade command, & save the pre upgrades migration files.
5. Run $WAS8_HOME/bin/WASPostUpgrade command & for Dmgr01.
6. Start WAS 8.0 Dmgr01 and force delete the nodes of WAS7.0
7. Run $WAS8_HOME/bin/WASPostUpgrade command for Custom01, (it will automatically federate the nodes with WAS8.0 dmgr01)
8. Do the same for Custom02 also.
9. Clear all profiles wstemp, temp, tranlog & logs files.
10. federate the nodes with dmgr and start node & servers instances.

Reference links: 

https://www.ibm.com/suppPostUpgrade.html

https://www.ibm.com/support/knowledgecenter/rmig_WASPreUpgrade.html

https://www.ibm.com/developerworks/media

Thanks :-)