IBM Tivoli Monitoring > Version 6.3 Fix Pack 2 > Installation Guides > Installation Guide > Performance tuning > Tivoli Data Warehouse > Relational database design and performance tuning for DB2 Database servers > Hardware design and operating system usage > I/O
IBM Tivoli Monitoring, Version 6.3 Fix Pack 2
Disk efficiency
You can improve disk efficiency with attention to the concerns outlined here.
- Minimize I/O. Access to main memory is much faster than accessing the disk. Provide as much memory as possible to the database buffer pools and various memory heaps to avoid I/O.
- When I/O is needed, reading simultaneously from several disks is the fastest method. You can use several smaller disks rather than one large disk, or place the disk drives on separate controllers.
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I/O