DB2 10.5 for Linux, UNIX, and Windows

Increased availability

With the IBM® DB2® pureScale® Feature, DB2 Version 10.5 increases availability of online topology changes.

With DB2 V10.5, several enhancements improve availability:

You can now add DB2 members online, without downtime.
Adding DB2 members offline no longer requires an immediate database backup be taken for a cataloged database to be usable.
After an add operation, restore backup images and roll forward to different topologies without requiring multiple full database backups
Restore backup images between an IBM DB2 10.5 Enterprise Server Edition and a DB2 pureScale instance.

When adding new members to a DB2 pureScale instance, DB2 V10.5 eliminates the need for planned downtime maintenance windows. As before, new members are added to a DB2 pureScale cluster through a single command, db2iupdt, without the need for stopping the instance. After the successful completion of the db2iupdt command, the cataloged databases are immediately available on the new member. You do not need to take a full offline backup of the database for the database to be usable again.

Restoring database and table space backups is made easier. You can:

Restore a database backup to a DB2 pureScale instance with a different topology.
Restore of online database backup images that are taken on a DB2 pureScale instance to a DB2 pureScale instance with a superset topology. Restore support includes a rollforward operation through member addition events.
Restore of table space backup images that are taken on a DB2 pureScale instance to a DB2 pureScale instancewith a superset topology. Restore support includes a tablespace rollforward operation through member addition events.