Michael_D. 1100004WAH Visits (2021)
In preparation to DB2 10 migration there is a need to answer the question if DB2 tooling will support the full functionality of a given DB2 version or will it tolerate the new version and worse if it will not support the new version. Mainly this will be most important if new functionality are effectively used and if the migration of a given DB2 environment completed the conversion to new function mode ( DB2 10 NFM ). Nevertheless, is is also important to watch and maintain the DB2 10 maintenance level to answer the question supported or tolerated.
This table provides information regarding DB2® Tools support for DB2® 10 for z/OS.
For more information on which new functions of DB2 10 are utilized by any specific product, or to find out about DB2 10 compatibility for products or releases not included in this matrix, please contact your IBM Customer Service Representative.
agburke 060001QPDN Visits (1733)
Regarding the DB2 for z/OS migration process, customers have seen failures due to ALTERing a catalog table that has no available version numbers (SQLCODE4732).
In addition, we are changing the premigration checkout jobs, DSNTIJPM and DSNTIJPA, to add queries that will identify cases where the version numbers are bad. The premigration checkout jobs are to be run before migration processing begins (ie in the release being migrated from). If there is a version number problem then the version numbers can be corrected prior to the migration process. This will ensure that the migration process will not fail due to this problem. See the ++HOLD actions for this APAR for further guidance for using DSNTIJPM or DSNTIJPA.
The following SELECT statement can be used to determine if there are catalog objects that have version number problems:
SELECT SUBSTR(CREATOR,1,8) AS CREATOR,
SUBSTR(NAME,1,8) AS NAME,
WHERE DBID = 6
AND (CURRENT_VERSION < OLDEST_VERSION);
If there are table spaces returned with this query then the version numbers can be corrected by a REORG of the table space and then by running MODIFY RECOVERY with DELETE to recycle version numbers. Additional information about version numbers can be found in the Utility Guide and Reference and also in the Administration Guide.
· PM70914 – DB2 migration fails due to catalog tables having incorrect version numbers
GZJ 1100006WMT Visits (1936)
If you are migrating from DB2 Version 9 or DB2 Version 8 to DB2 10, then you need to check out Info APAR II14702. This APAR provides guidance on avoiding know issues both when moving to Conversion Mode(CM), and when entering Enabling New Function Mode (ENFM).
You can read this APAR here: II14702: AVOIDING MIGRATION ISSUES FOR FASTER MIGRATION HINTS & TIPS TO V10
Note that this APAR is in INTRAN status and such is likely to be updated as new information becomes available and as new issues are encountered. For that reason, this blog entry does not contain the APAR text. Instead, we strongly recommend that you read the APAR on a regular basis to ensure that you don't miss any important updates.
We further recommend that you track and remain alert on any HIPER maintenance relating to migration and to the ENFM process.The use of extended HOLD DATA is advisable.
In particular we'd like to draw your attention to the advice to perform ENFM in maintenance mode if at all possible, and if you are data sharing to shut down all members apart from the one in maintenance mode where you plan to run ENFM. If this is not possible, then we recommend that you run ENFM at as quiet a time as possible.
flodubois 270000K6H5 Visits (2773)
Below is a set of optimiser-related DB2 system parameters (ZPARMS) and their V10 default values. If the setting of any of these system parameters in your environment does NOT match the V10 default, then please re-evaluate the setting before migrating to DB2 10 for z/OS. If you need special assistance from IBM, please open a problem record (PMR).
MACRO ZPARM DEFAULT V10
DSN6SPRM OPTIOWGT ENABLE
DSN6SPRM OPTIXIO ON
DSN6SPRM OPTXQB ON
DSN6SPRM STATCLUS ENHANCED
flodubois 270000K6H5 Visits (2276)
General reminder of the need to re-activate DB2 Connect server license after moving from V9 NFM to V10 CM
Starting in Version 9.7 Fix Pack 3, you can activate the license key for DB2 Connect Unlimited Edition for System z on any z/OS subsystem or data sharing group that you want to access directly. Activating the license key on a z/OS subsystem can take less time than activating the key on each client computer. You can activate the license only on a z/OS subsystem or data sharing group for which the product was purchased. Activation is done using the db2connectactivate utility.
With or without IBM APAR IC82415, there is some manual intervention needed for those who deployed DB2 Connect Unlimited Edition and used the server-based license activation.
Please refer to Technote 1589320 using the link below:
agburke 060001QPDN Visits (1409)
Here are the links to the playback of the V10 Migration Early Experiences web conference recordings.