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Avoid Single point of failure for Db2's critical files
If the critical files of Db2 damage, e.g. by erroneously deletion, file system corruption Db2 will no longer be available (#usable). Since some of the critical files are permanently updated a restore of the critical files does solve the problem. A...
Allow configuration to abort Db2 restore if tablespace errors occur
Today, Db2 Restore can continue with a subset of tablespaces if e.g. same tablespaces fail to acquire containers. In the end of roll forward completes, but some tablespaces did not complete and remain in 'storage definition pending' and need to ha...
Extend Db2 AWS S3 Support to Include Log Archiving
Db2 added support for backup / restore / load copy to / from Amazon S3 and IBM Cloud ObjectStore some time ago. The one thing missing from this as an overall solution is to allow archive logs to be written to object storage, in the same way as the...
Remove per-tablespace size limitation for v11.1 and v11.5 community edition
Currently if we restore a database backup that was taken on a higher edition of Db2 into Developer-C, it fails with SQL1139N, even if it is fully less than 100GB. There are two workarounds for this:
Set a MAX for all table spaces before taking ...
Power9 zlib accelerator for backup and log file compression
Db2 supports NX842 accelerator on AIX. This has some limitation like restoring of such an backup image is only possible on AIX and cannot be combined with AME and AMS and also requires a license key to enable it.Compression and decompression in so...
Upload db2 load copy images with db2adutl from filesystem to tsm
Currently using db2adutl only db2 database or tablespace backup images and log files can be moved from a filesystem to TSM using db2adutl. Load copy images cannot be moved using db2adutl. Example: $ db2adutl upload images /loadcopy/DBTEST.4.db2ins...
When we are deleting logs in TSM every week, we encounter very poor performance for deleting > 1000 logs for each DB2 partition. There are 131 DB2 partitions. Deleting the same amount of logs with dsmc del . . . . . works much faster. We assume...
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