Increasing Exntended Memory Size

[Former Member]

Hello Folks,

I want to increase the size of extended memory from RZ10 using paramter em/initial_size_MB in the instance profile, but when I increased it from 2264 MB to 4264 MB, my system did not come up after restarting....

In MMC, it showed, disp+work.exe was yellow in colour with message "Could not connect to Message Server".

Message Server and rest all the processes were in green and running...

Other parameters....

PHYS_MEMSIZE=4264 MB (size of physical ram)

I reverted back to my old profile to start the system...

Can anyone tell me how do I increase my extended memory and how Extended block parameter is related with each other?

Appreciate your reply....

thanks in advance..

SAT

[former_member185954 · Accepted solution]

Hi Satyajit,

SAP has a concept of zero memory management on windows.

Please check the following topic.

http://help.sap.com/saphelp_47x200/helpdata/en/84/7ed384d81f11d188be0000e83539c3/frameset.htm

Also when you change profile parameters related to memory, you should generally run sappfpar to check if the settings are okay , before stopping /starting the server.

Regards,

Siddhesh

[Former Member · Accepted solution]

Hello Sid,

I got the point....

I shud check on command line for the same..before restarting

But I am keen to knw how to increase extended memory since I have seen to many swaps happening in ST02 - Buffer monitor.

Current Paramter values :

SAPSYSTEMNAME DEV

INSTANCE_NAME DVEBMGS0

SAPSYSTEM 00

rdisp/wp_no_dia 6

rdisp/wp_no_btc 4

rdisp/wp_no_vb 3

rdisp/wp_no_vb2 3

rdisp/wp_no_enq 1

rdisp/wp_no_spo 1

SAPGLOBALHOST sapdev

PHYS_MEMSIZE 2264

DIR_TRANS D:\usr\s

icm/server_port_0 PROT=HTT

abap/buffersize 450000

zcsa/table_buffer_area 40547328

rtbb/buffer_length 10000

rsdb/cua/buffersize 4500

zcsa/presentation_buffer_area 4604928

rdisp/appc_ca_blk_no 100

rdisp/wp_ca_blk_no 300

rsdb/ntab/entrycount 24845

rsdb/ntab/ftabsize 37298

rsdb/ntab/irbdsize 7460

rsdb/ntab/sntabsize 3730

DIR_ROLL D:\usr\sap

DIR_PAGING D:\usr\sap

DIR_DATA D:\usr\sap

DIR_REORG D:\usr\sap

DIR_TEMP .

DIR_SORTTMP D:\usr\sap

zcsa/system_language E

zcsa/installed_languages ED

install/codepage/appl_server 4103

abap/use_paging 0

ztta/roll_first 1024

ztta/roll_area 2000896

rdisp/ROLL_SHM 32768

rdisp/ROLL_MAXFS 32768

rdisp/PG_SHM 16384

rdisp/PG_MAXFS 32768

abap/heap_area_dia 200068300

abap/heap_area_nondia 200068300

abap/heap_area_total 200068300

abap/heaplimit 40894464

abap/swap_reserve 20971520

ztta/roll_extension 200068300

em/initial_size_MB 2264

em/blocksize_KB 1024

em/stat_log_size_MB 20

em/stat_log_timeout 0

em/address_space_MB 512

I have increased my RAM size from 2 GB to 4 GB for occuring swaps which is the reason I want to increase extended memory also...

Also, in instance profile the abap/buffersize is 450000 KB and in ST02 its showing below entries --

Hit Ratio Allocated(KB) Free Space(KB) % Dir Size Entries

Program 95.19 200,000 2,919 1.51 50,000

If am not wrong, the entries in ST02 shud also show 450 MB

Can you please guide me how do I go for it and let me know if you need any other data?

Thanks and appreciate your help,

SAT

[former_member185954 · Accepted solution]

Hi Satyajit,

sappfpar pf=<instance profile> check

is the command line, you should login as <sid>adm in your OS and run the command from the profile directory, where you can find the instance profile.

Regards,

Siddhesh

[Former Member · Accepted solution]

Hi Sid,

Thank you for your reply

What you have said, am aware of it....

My question is, if I have increasd my physical RAM from 2-4 GB, then how would I increase the extended memory in my system? (Size and blocks, both)

Thanks,

SAT

[former_member185954 · Accepted solution]

Hi Satyajit,

Please check the following SAP Note:

Note 88416 - Zero administration memory management as of 4.0A/ Windows

Regards,

Siddhesh

[former_member185954 · Accepted solution]

Hi Satyajit,

Regarding memory sizing, its best that you choose the parameters for yourself, its good fun !

if you face a problem while choosing a configuration you can post your questions here as new posts.

Anwyays if your question is answered, please mark the question as answered.

Regards,

Siddhesh

[Former Member · Accepted solution]

Hello Sid,

Thanks for ur reply....

Am actually now in the middle of ECC installation which should get over by today.

Am going to comeback on this topic soo.

SAT