
Chapter 7. Open systems servers - UNIX 191
7.2 Planning and preparing UNIX servers for performance
Before delving into iostat numbers and performance tools, it is important to consider some
configuration factors that affect I/O performance on the DS6000. The main point we want to
make is that, for best performance, the I/O capabilities of the DS6000 should be evenly
distributed to each application server. The DS6000 has many components that contribute to
performance, among these are:
Extent Pools
LUNs
Use of multi-path applications
Paths to host adapters
The use of supported code levels
7.2.1 I/O balanced across Extent Pools
Below we mak ...