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page_age_trgt_mcr is a kind of successor of SOFTMAX and provides the possibility to control the flushing of modified buffer pool pages to table spaces based on time. Unfortunately page_age_trgt_mcr is just configurable, not configurable ONLINE. Th...
A DB cfg parameter to set the default tablespace to prevent objects ending up in the wrong TS
When not explicitly set in the CREATE TABLE statement, a newly created table will end up in the last created tablespace. A lot of customers have problems with this for several reasons. They have no control over table placement when using a framewo...
Make SYSMON group configurable online. Currently an outage is required to set or change SYSMON. While some DBAs set this whenever they build a system, others do not, and it is frustrating to request this fairly common level of permissions and to h...
NUM_LOG_SPAN species a number of log files. If the number of log files changes (LOGPRIMARY, LOGSECONDARY, LOGFILSIZ) the absolute number of NUM_LOG_SPAN should be adjusted as well. If NUM_LOG would be a percent value of the primary log files there...
MAX_QUERYDEGREE allows to specify the maximum degree of parallelism for a query. The setting of ANY is usually to aggressive for typical Db2 SAP systems. Specifying an absolute value has the disadvantage of having to adjust the parameter for every...
Make DB2_USE_ALTERNATE_PAGE_CLEANING=ON the default
DB2_USE_ALTERNATE_PAGE_CLEANING is of great benefit for performance and scalability since it was introduced in v8. It's now the default in pureScale and BLU environments, so why can't we make it the default all around?
Change behaviour of default Fast Communications Manager (FCM) port
Change behaviour of default Fast Communications Manager (FCM) port https://www.ibm.com/support/pages/db2-db2-server-tcpip-port-numbers For Db2 Version 11.5.5 or older, the ports used are 60000 and higher. For example, ports 60006 - 60011 would be ...
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