Parameter ztta/roll_area

[Former Member]

Hi,

Few months ago, we changed this parameter from 6.500.000 to 65.000.000 because we had to throw some large and heavy jobs. Then we haven't changed this parameter, do anybody know what impact can have this hight value in our SAP?.

Beste Regards

[Former Member]

Hi,

Thanks for your help, we changed the parameter to the initial value and everything seems ok.

Regards.

[former_member105207]

hi Maximo,

Please check this link below. Might be helpful.

http://help.sap.com/saphelp_nw70/helpdata/en/02/96274f538111d1891b0000e8322f96/content.htm

regards,

chandru.

[vincentlim826]

If a user logs on to the SAP System, a user context is generated with

one external and one internal session, that is, the roll memory

management allocates a management-shared memory as well as a roll area.

When you create an internal session, the roll area is preallocated up to

the size of ztta/roll_first. If you require a larger roll area, the roll

area is retrieved from the extended memory, up to a maximum of the size

of ztta/roll_extension. For any further requirements, space is requested

from the roll memory up to the upper limit (ztta/roll_area -

ztta/roll_first). This process should prevent temporary memory being

wasted at the beginning, even if it is never actually required. The

ztta/roll_area and ztta/roll_first profile parameters can be set to any

value as long as the following condition is met:

1 <= ztta/roll_first <= ztta/roll_area

Regards,

Vincent