User Guide

SAP AG November 2002
MAXBACKUPDEVS
The general database parameter [Page 79] MAXBACKUPDEVS denotes the maximum
number of files or tape devices that can be used in parallel.
You can speed up the process of backing up and restoring data volumes [Page
130] by using
more than one file or tape device in parallel.
MAXCPU
The general database parameter [Page 79] MAXCPU denotes the maximum number of CPUs
allowed on the database instance [Page 132]. MAXCPU defines over how many CPUs the
user tasks [Page
16] generating the main load are distributed.
When defining MAXCPU, however, remember that operating system resources must also be
available for other processes.
This means you can define and also restrict the number of CPUs the database instance uses
on multiprocessor computers (Multiprocessor Configuration [Page
144]).
If you are using a single processor computer, you should choose a value of 1 for the
MAXCPU.
MAXDATADEVSPACES
See MAXDATAVOLUMES [Page 85]
MAXDATAVOLUMES
The general database parameter [Page 79] MAXDATAVOLUMES (depending on the version,
may also be called MAXDATADEVSPACES) denotes the maximum number of data volumes
[Page 130].
MAXLOCKS
The general database parameter [Page 79] MAXLOCKS determines the maximum number of
entries in the lock list in which the locks [Page
140] (line or table locks) of all users and their
lock requests are stored.
See also:
Lock behavior [Page
113]
User Manual: SAP DB 85