SAP Library - Find your answers

Maximum No. Of SAP Session Per User

You set this Parameter : rdisp/max_alt_modes in transaction RZ10.

Add in the above parameter in the Instance Profile - Options Extended Maintenance.

Restart the R/3 instance.

The default maximum no. of sessions in 4.6x is set as 6 session per user.

As previously described, the SAP Memory Manager copies the memory blocks of the roll area between the process address area and the shared memory with a memory copy command. However, the memory blocks of the Extended Memory are included again when the user context is changed. This is more efficient than copying blocks of the roll area. For this reason, the user context should largely be located in the Extended Memory. The profile parameter ztta/roll_first sets the size of the allocated memory in the roll area, before Extended Memory is used. If you set the profile parameter to 1, the SAP Memory Manager is told to use the Extended Memory immediately.

See: Parameter Overview for Windows NT

Use

This value specifies the size of the R/3 paging file in 8 KB blocks. The paging file functions as memory for extracts and exports to memory. See also: SAP Paging.

Goal:

Space must be sufficient; does not present a problem even if the dimensions are too large.

Integration

Unit: 8 KB

Default value: 2048

Recommended value: UNIX: Optimally 32000, but the value depends on the server size. Under Microsoft Windows NT, it is the same size as rdisp/PG_SHM. Also note the configuration examples (Contents button). For more information on Windows NT, see Parameter Overview for Windows NT.

Absolute upper limit: 250000 blocks (2 GB) for special applications (file system must be large enough)

Changes: The customer can make changes.

Use

Integration

• On the roll area: See
ztta/roll_area: Roll Area.
• The parameter should not be smaller than
rdisp/ROLL_SHM: Roll Buffer Size.
• Space must be available in the file system.

Unit: 8 KB

Default value: 2.000; Under IBM AS/400: 0

Recommended values: Various values, depending on the server size If enough memory is available, under UNIX 64000 blocks.

• Under IBM AS/400: 0
• Under Windows NT: Same value as
rdisp/ROLL_SHM

Absolute upper limit: 250000 blocks (2 GB) for special applications (file system must be large enough)

Also note the configuration examples (Contents button). For more information on Windows NT, see Parameter Overview for Windows NT.

Changes: The customer can make changes.