Sybase ASE 12.5 to 15 Upgradation Steps -II

Upgrade Steps:

Before proceeding with any further steps , please make sure preupgrade step is clean  and you have backup of all databases, tables etc.

1. Make sure you are in ASe 15 enviorment, ( by executing .profile_15)

2. cd to sample resource files directory.

3. copy the sql server resource file with new name before modifying original file.

4. Edit the resource file for the old sybase home dir (ASE 12.5),for reserver word check yes and update the resource file as per your enviorment.

5. No need to shutdown your ASE 12.5 server, sqlupgradres will take care all the things.

6.  Only execute this command once you have done with all above steps and you have taken all backup. (MOST IMPORTANT)

sqlupgraderes again perform preupgrade, before actual upgrade.( you can modify its behaviour in resource file).

sqlupgraderes will copy automatically the interface file, cfg file , run server file in ase 15x.

Execute the following command with resource file: sqlupgraderes -r <resource_file_name>

Copying interfaces file entry to new directory...

The interfaces file entry has been copied to the new directory.

Running preupgrade program...

The preupgrade program has completed successfully.

Checking reserved words in each database...

No reserved word conflicts were found.

Checkpointing all databases...

All databases have been checkpointed.

Copying configuration file to new directory...

The configuration file has been copied to the new directory.

Updating RUN_SERVER file...

The RUN_SERVER file has been updated.

Doing pre-upgrade modifications...

Pre-upgrade modifications succeeded.

Restarting Adaptive Server....

Adaptive Server has been restarted.

Running upgrade program...

The upgrade program has completed successfully.

Restarting Adaptive Server....

Adaptive Server has been restarted.

Running installmaster script...

installmaster: 10% complete.

installmaster: 20% complete.

installmaster: 30% complete.

installmaster: 40% complete.

installmaster: 50% complete.

installmaster: 60% complete.

installmaster: 70% complete.

installmaster: 80% complete.

installmaster: 90% complete.

installmaster: 100% complete.

The installmaster script has been successfully installed.

Running installcommit script...

The installcommit script has been successfully installed.

Installing common character sets (Code Page 437, Code Page 850, ISO Latin-1,

Macintosh and HP Roman-8)...

Character sets installed.

Restarting Adaptive Server....

Adaptive Server has been restarted.

Done

6. Log in the server, check the current version with @@version, @@boottime, database/device status.

Post-upgrade tasks:

1. Installing 15x stored procedures after upgrade depending which function is being used on the server.

installsecurity – Run this script if the Adaptive Server Auditing functionality was enabled in your earlier installation.

installhasvss – Run this script if the HA functionality is enabled and the HA feature is currently in use in the upgraded installation of        Adaptive Server.

Installmodel

instmsgs.ebf

Check the installation script version using sp_version by logging in ASE.

2. Compare sp_configure output to see if there is any difference. Verify procedure cache allocation after upgrading. Verify data cache has no change.

3. Make sure license file is used.

save the license files with a .lic file name extension to the SYSAM-2_0/licenses directory of the license server installation.

Modify the variable in .profile for any instances on the same box.

For example:

LM_LICENSE_FILE=servername.lic

If you not having lic file, it will run under grace period of 1 months, you will get same warning in errorlog.

4. Reboot the instance

5. Reenabling auditing if needed.

Sybase ASE 12.5 to 15 Upgradation Steps -I

Friends,

Just trying to make out the Sybase ASE 12.5 to ASE 15.0 upgrade check list.
If any point is missing,any recommendation/suggestions. please comment it out below.

Thanks n Happy Learning Sybase.

Cheers!!

PS: Please take the backup of  tables, files, dirs before making any changes. Below steps can be changed for working environment/platform. Before doing on Prod, first proceed with dev env.




ASE 15.x Intsallation :

1. Please first read all the plateform requirement, os patch level before ASE15x installation.
If any patch is recommended, please get it apply with Unix team.

2. Install Adaptive Server 15x into its installation directory other than ASE 12.5.

3. run ./setup to install ASE15x – Just install Binary – do not create any Instance.
run ./setup –console in command mode, do not create any instance here.

Pre Upgrade Tasks:

1. Please run dbcc checkdb, dbcc checkalloc and dbcc checkcatalog in single user mode with fix option,
and make sure that there is no Errors from the check, if there is any Error, Please Fix the problem. It is critical for successful migration.

2. Backup database and Dump Transaction Logs.

3. bcp system tables out
syslogins, sysloginroles, sysusages, sysservers, sysdatabases, sysdevices

4. Ensure that Instance has sybsystemdb if it does not exist, create it.

5. Disable auditing using Command
Sp_Configure 'auditing', 0

6. Save the current audit settings for the pre-15.0.2 Adaptive Server using the command:

sp_displayaudit

7. There are recommendation to set allow password downgrade' to 1 – in case we want to downgrade from 15.0.2 to 12.5.4 again – but not required in my case.
Because encryption algo is changed in ASE 15.

8. Extract databse devices and databases creation scripts using ddlgen,Sybase Central.

9. Save sp_configure output.

10.Save data cache information.

11. Make sure, ASE is configured with enough lock structures for the upgrade process to complete successfully,
it is strongly recommended that you perform the following steps:

a) In every user database, execute the following query:
1> select 2 * (count(*)) + 100 from systabstats
2> go
b) Record the highest value returned

c) If the value from Step 2 above is less than the current number of configured lock structures,
then increase the configured value to the value from Step 2, as shown below:

1> sp_configure ‘number of locks”,
2> go

12. Take the backup of cronjobs and comment out/suspend all the dba maint jobs and application jobs in cron/autosys.

13. Please make sure there is no user activity on the server.

14. Lock all the User and Application ID, functinal ids, system ids: repserver dbo.

Must take the bcp out of syslogins before changing it.

USE master
go
EXEC sp_configure 'allow updates to system tables',1
go
select 'update syslogins set status = 2 where name = "' + name+'"' from syslogins
where name not in ("hauser","probe","probe_sybase","sa")
order by name
go

15. Setup black out/define green zone to avoid alerts. (optional).

16. Create a new profile named as .profile_15 in sybase home directory by copying ASE 15x SYBASE.sh .
Verify that your SYBASE environment variable points to the location of the new Adaptive Server software files you just installed.
set the OLDSYBASE, OLDSYBASE_ASE, and OLDSYBASE_OCS environment variables to the location of the server you are upgrading,
to avoid any possibe error during sqlupgraderes.

17. Make a backup of existing .profile and move it with .profile_12.5

18. preugrade test : preupgrade is need to run for upgrade elibibilty test for fixing error/warning before actual upgrade;

preupgrade is exe which is loacted under /ase15_0/upgrade/.
i)If you are in 12.5 enviorment ( by executing .profile_12.5), go in the below mentioned dir and issue the below command.

/ASE-15_0/upgrade> preupgrade -S -Usa

ii) If you are in 15x env, (by executing .profile_15), please copy the interfaces filefrom 12.5 dir to 15x dir.
Then run the above command.

19. Run Preupgrde test: It may recommends lot of warning, errors for your databases and config params.

Please fix all these errors until all is not resolved and get it confirm with preupgrade test.

20. Fix all reported errors and repeat preupgrade process until no error. And see the sentence as below.

Preupgrade of Adaptive Server to 15.0 is complete.
Upgrade eligibility test succeeded.