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Pagefile for SAP Erp2005 and Solution Manager 4.0

Former Member
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Hi all,

I've installed SAP ERP2005 and Solution Manager 4.0 on the same server with Windows 2003 Standard 32bit.

The RAM on this server is 3325MB.

How many paging file I must configure???

At the moment I configured the pagefile size as defined in the installation guide:

1 RAM + 8GB that is 12285MB.

Is it correct????

For both instance I set the PHYS_MEM parameter to 2328 (70% of the RAM)...is it correct??

P.S. How to calculate the [BE] parameters??

[BE] = maximum possible number of user calculated from the size of physical main memory

Thanks in advanced

Moreno

Accepted Solutions (1)

Accepted Solutions (1)

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We take the pagefile sizes as a good recommendation for systems in the lower RAM area (2 - 6 GB). For larger machines you will see less pagefile usage.

On a MSCS installation with 64 GB nodes we saw that we need 80 GB pagefile to allow the switching of the groups (R/3 and SQLServer).

And having enough room in the pagefile does not relief you from memory overcommit problems. It only lets your system keep alive.

HTH, Rudi

Answers (2)

Answers (2)

former_member433984
Active Contributor
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will you use the ERP instance later for production or for tests?

Former Member
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I will use the ERP instance for the tests.

Moreno

former_member433984
Active Contributor
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in any case there is a danger, if you copy you prod system and it was 64bit, that some memory consumptive transactions might not run due to limitation in 32bit virtual address space.

From page file view there should be no problem as you can increase it any time.

Former Member
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My production system is 32bit.

Do you know how to calculate the [BE] value???

Thanks.

Moreno

former_member433984
Active Contributor
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leave default values, you do not need [BE] so far

Default values are large enough to fit your needs

former_member204746
Active Contributor
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I agree with Yaroslav,

you should NOT set those values:

em/initial_size_MB  |----    [PM]  |----    [PM]   |Mbyte     |
|---    em/max_size_MB  |---    20000  |---   100000   |Mbyte     |
|  em/address_space_MB  |-----    512  |-----   4096   |Mbyte     |
|----  ztta/roll_first  |-------    1  |-------    1   |Byte      |
|---    ztta/roll_area  |---  2000000  |---  3000000   |Byte      |
|  ztta/roll_extension  |  2000000000  |  2000000000   |Byte      |
|    abap/heap_area_dia  |  2000000000  |           2000000000   |Byte     |
| abap/heap_area_nondia  |  2000000000  |           0  |Byte      |
|  abap/heap_area_total  |  2000000000  |[PM]*1048576   |Byte      |
|-    rdisp/ROLL_MAXFS  |  [BE] * 100   |  [BE] * 100   |8KB Block |
|---    rdisp/ROLL_SHM  |  [BE] * 100   |  [BE] * 100   |8KB Block |
|---    rdisp/PG_MAXFS  |---    32768  |---    32768   |8KB Block |
|-----    rdisp/PG_SHM  |  

so... that [BE] value is not to be used.

former_member204746
Active Contributor
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pagefile = 3325 * 2.5 = roughly 8GB

phys_memsize must be split in 2, so use 1328 for ERP2005 and 1000 for SolMan.

where have you heard about [BE]parameter?

Former Member
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The BE parameter is reported on SAP Note 88416 (Zero administration memory management as of 4.0A/Windows).

This parameter is need to know the value of the following parameters:

rdisp/ROLL_MAXFS = [BE]*100

rdisp/ROLL_SHM=[BE]*100

rdisp/PG_SHM=[BE]*50

former_member433984
Active Contributor
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you can leave the default values so far (or does not set them in profile, than ZAMM values will be active). Usually it is enough for your test system with low activities.

You can increase/reduce the parameters later basing on ST02 statistics.