Memory requirements
Memory requirements are affected by the size and complexity of your database
system, the extent of database activity, and the number of clients accessing your
system. At a minimum, a DB2 database system requires 256 MB of RAM1
. For a
system running just a DB2 product and the DB2 GUI tools, a minimum of 512 MB
of RAM is required. However, 1 GB of RAM is recommended for improved
performance. These requirements do not include any additional memory
requirements for other software that is running on your system. For IBM® data
server client support, these memory requirements are for a base of five concurrent
client connections. For every additional five client connections, an additional 16
MB of RAM is required.
For DB2 server products, the self-tuning memory manager (STMM) simplifies the
task of memory configuration by automatically setting values for several memory
configuration parameters. When enabled, the memory tuner dynamically
distributes available memory resources among several memory consumers
including sort, the package cache, the lock list, and buffer pools.