HP 9000 V2600 SCA - Manual (Page 143)

Chapter 6 121
HP-UX Operating System
HP-UX on the V2500/V2600
• Dedicated commercial data processing use—Servers whose use is
restricted for online transaction processing (OLTP), running Oracle,
and running other data processing workloads. These systems provide
limited, if any, interactive user access.
The “OLTP/Database Server System” tuned parameter set provides a
good HP-UX configuration for using HP V-Class servers for dedicated
commercial data processing.
• Mixed interactive and data processing use—Servers used for
interactive user log-ins, and for running OLTP/data processing
workloads and miscellaneous other applications.
The “OLTP/Database Monolithic System” tuned parameter set is
appropriate for mixed-use V-Class servers.
Multiple-cabinet kernel configurations
The following are notable initial kernel parameter settings for multiple-
cabinet V2500/V2600 servers. There settings are provided when
installing HP-UX 11.10 on multiple-cabinet servers.
• maxuprc—Maximum number of user processes.
Initial SCA value: 256
• maxusers—The MAXUSERS value, used in various kernel formulae.
Initial SCA value: 256
• max_thread_proc—Maximum number of threads allows in each
process.
Initial SCA value: 500
• maxswapchunks—Maximum number of swap chunks. The size of
each swap chunk is defined by the swchunk kernel parameter, which
specifies the number of 1 KByte blocks.
Initial SCA value: 5000
NOTE Note that the maxswapchunks parameter setting (and the swchunk
setting) may need to be adjusted based on your system’s swap space and
crash dump needs.
These tuned parameter sets are available from the SAM utility’s
Configurable Parameters subarea, as described above, and are stored as
files in the following directory.