Memory and disk conditions required for DB2 installation

Disk Space Requirements

How much disk space does it take to install the DB2 9 data server product? This has much to do with the options you install and the file system format that the operating system sets on the machine. The installer daemon for the DB2 9 product can dynamically estimate the amount of disk space required under various installation options. Under the Windows platform, if the system's file storage is in fat format, you need more disk space than the NTFS-formatted storage file. When estimating disk space, you should not forget to allocate space for DB2 9 related tool software and communication software.

Requirements for memory space

Simply running the DB2 9 data Server software system requires at least 256M of memory to support it. A computer system running the DB2 9 database server and DB2 9 graphical User management interface tool requires at least 512M of memory space. To improve the performance of the DB2 9 runtime, the manufacturer recommends configuring more than 1G of RAM to run the DB2 9 data server product. If you need to run other software on your computer, the memory should increase additionally. When considering adding memory, note the following:

1. If the hardware environment running the DB2 9 product is "Intel itanium® 2 Processor" and "second edition HP-UX 11i" operating system, the minimum memory required is 512M.

2. The DB2 9 data server, which runs with a minimum memory configuration, supports 5 concurrent client connections by default, and additional 16M of memory is required to support each additional 5 concurrent clients.

3. The memory requirements of the data Service system are closely related to the number of visitors ' clients, as well as the frequency of the movement of the data in the internal data system. The new version of DB2 product (DB2 9) introduced the automatic allocation of optimized memory mechanism, DB2 9 database products in the running process of "sorting, packaging buffer, list lock and buffer pool allocation" and other data actions can be automated mechanism to adjust and allocate memory.

4. In a Linux environment, it is recommended that you set the space size of the swap partition at least twice times the amount of system memory.