Convert dual stack systems into single stack

Hi all,
need some info regarding the procedure to convert dual stack systems into single stack systems.

Hi Ambarish,
check this below discussion... I hope raising an OSS will not be useful in this case...
Dual stack to Single stack migration
Regards,
Chandru

Similar Messages

How to convert select-options table into single field internal table

Hi,
My requirement is to convert select-options table into single internal table which has one field.
e.g. select-options: s_matnr for mara-matnr.
       select-options table can have options 'BT',"EQ", "NE", "GE", "GT", "LE", "LT", "CP" etc. select-options table
       have   Sign:I ,Option:BT, Low: 1, High.10.The new internal table records should be 1,2,3,4,5,6,7,8,9,10.
Please suggest any function module available for this scenario in SAP.
Thanks,
Somi.
Edited by: somi reddy satti on Sep 15, 2009 3:18 PM

Hi Sowmya,
Here is the answer if I understand well of your question.
Data: begin of gt_mon OCCURS 0,
              mon(2)             TYPE n,
         end of gt_mon.
Data: begin of gt_year OCCURS 0,
              year(4)             TYPE n,
         end of gt_year.
Select-options: s_period       FOR ptdw_pws_db-kmonth NO-EXTENSION
                                                                                DEFAULT sy-datum(6)
                                                                                TO sy-datum(6).
For example according to above statement period is 201110 is 201201.
Period field does n't exists in SAP for selection. If your selection is on date based on period which is given on the selection-screen then you need to convert the period to date by concatenating ( or using FM to convert )01 at the end of each period . You need to declare one range table for date to select the data from table.
loop at s_period.
gr_date-sign   = s_period-sign.
gr_date-option = s_period-option.
COncatenate s_period-low
                      '01'
into gr_date-high.
COncatenate s_period-high
                       '01'
into gr_date-low
append gr_date.
ENDloop.
Thanks,
Satheesh

How to convert pl/sql block into single update statement

Dear all gurus,
I have pl/sql block mention below, Can I convert this pl/sql block to single update statement if possible?
If not how to optimize this block?
Pleaese suggest.
thanks in advance.
Vijay
DECLARE
CURSOR vt_mlr_cursor IS Select master_key, user4 from vt_mlr Where USER4 is not null;
USERFIELD VARCHAR2(100);
C1 VARCHAR2(3); /* this will return location of first space = 12 */
C2 VARCHAR2(3); /* this will return location of second space = 20 */
C3 VARCHAR2(3); /* this will return location of third space = 28 */
C4 VARCHAR2(3); /* this will return location of forth space = 35 */
Field1 VARCHAR2(40); /* this will return FTMYFLXA04W */
Field2 VARCHAR2(10); /* this will return VPI0043 */
Field3 VARCHAR2(10); /* this will return VCI0184 */
Field4 VARCHAR2(10); /* this will return 005 */
Field5 VARCHAR2(10); /* this will return 00001 */
Field_2_n_3 VARCHAR2(25);
key VARCHAR2(10);
BEGIN
FOR vt_mlr_record IN vt_mlr_cursor
LOOP
key := vt_mlr_record.master_key;
USERFIELD := vt_mlr_record.user4;
C1 := INSTR(vt_mlr_record.user4,' ',1,1); /* this will return location of first space = 12 */
C2 := INSTR(vt_mlr_record.user4,' ',1,2); /* this will return location of second space = 20 */
C3 := INSTR(vt_mlr_record.user4,' ',1,3); /* this will return location of third space = 28 */
C4 := INSTR(vt_mlr_record.user4,' ',1,4); /* this will return location of forth space = 35 */
Field1 := SUBSTR(vt_mlr_record.user4,1,C1-1); /* this will return FTMYFLXA04W */
Field2 := SUBSTR(vt_mlr_record.user4,C1+4,C2-C1-4); /* this will return VPI0043 */
Field3 := SUBSTR(vt_mlr_record.user4,C2+4,C3-C2-4); /* this will return VCI0184 */
Field4 := SUBSTR(vt_mlr_record.user4,C3+4,C4-C3-4); /* this will return 005 */
Field5 := SUBSTR(vt_mlr_record.user4,C4+4,LENGTH(vt_mlr_record.user4)-C4-3); /* this will return 00001 */
Field_2_n_3 := Field2 || '/' || Field3;
/*DBMS_OUTPUT.PUT_LINE ('Current key is: ' || vt_mlr_record.master_key);*/
UPDATE vt_mlr
SET
aggregator_clli = Field1,
aggregator_vpi_vci = Field_2_n_3,
aggregator_slot = Field4,
aggregator_port = Field5
WHERE
master_key = vt_mlr_record.master_key;
END LOOP;
END;
/

Hi Vijay,
Here's something to start with, you should be able to complete it.
First, combine your select and update statements:
update vt_mlr
   set aggregator_clli = field1
      ,aggregator_vpi_vci = field_2_n_3
      ,aggregator_slot = field4
      ,aggregator_port = field5
where user4 is not null;Then put these two
C1 := INSTR(vt_mlr_record.user4,' ',1,1);
Field1 := SUBSTR(vt_mlr_record.user4,1,C1-1);into
Field1 := SUBSTR(vt_mlr_record.user4,1,INSTR(vt_mlr_record.user4,' ',1,1) -1);And put it into the update statement, removing reference to record
(I have also removed default values for position and occurrence in instr function):
update vt_mlr
   set aggregator_clli = substr(user4, 1, instr(user4,' ') - 1)
      ,aggregator_vpi_vci = field_2_n_3
      ,aggregator_slot = field4
      ,aggregator_port = field5
where user4 is not null; I think you can do the rest from here ;-)
Regards
Peter

Combining dual mono tracks into single stereo

I may be brain dead about this and since I have been recording a client all day--a non-pro doing a VO--I am. I may not be using the search function very well either here or in the manual.
I am working on a 27 minute film segment in Logic exported from FCP using the XML function. Mostly that has gone well but is by no means plug and play. It is very cool to have the project based in Logic and be able to do all my audio and music in one environment to HD picture.
My quandary is this: I would like all of my dual mono tracks from FCP to appear as a single stereo track in LP8. Is it possible to "collapse" two tracks into one with out exporting, reimporting them and then re-syncing possibly?
This is a confusing project and the more I can simplify my organization the easier my life will be.
Thanks, eab

One easy way to treat the two mono tracks as one for editing a so forth would perhaps be to assign them both to the same Group. That way all edits, automation and such will be applied to both tracks.
/juhani

Converting multiple column rows into single column

Hi all Below is my requirement, can you anybody help me solve it. CREATE TABLE TYPE ( c1_type VARCHAR2 (10), c2_type VARCHAR2 (10), c3_type VARCHAR2 (10), c4_type VARCHAR2 (10), c5_type VARCHAR2 (10), c6_type VARCHAR2 (10), c7_type VARCHAR2 (10), c8_type VARCHAR2 (10), c9_type VARCHAR2 (10)); INSERT INTO TYPE VALUES ('Region_D', 'Region_E', 'Region_F', 'Region_D', 'Region_E', 'Region_D', 'Region_M', 'Region_D', 'Region_E'); commit; Acutal output on the below query select * from type; C1_TYPE C2_TYPE C3_TYPE C4_TYPE C5_TYPE C6_TYPE C7_TYPE C8_TYPE C9_TYPE Region_D Region_E Region_F Region_D Region_E Region_D Region_M Region_D Region_E Acutal i am expecting the below output,how to make it using query or using oracle built in function. Region_D Region_D Region_D Region_D Region_E Region_E Region_E Region_F Region_M

Hi,
So, you want to put the column values in alphabetic order, with the earliest value in c1_type and the last in c9_type, is that it?
The fact that you even want to do this says that this is a bad table design. If sorting the values makes sense, then putting them all in the same column on 9 different rows (rather than 9 different columns on 1 row) makes sense.
If you're stuck with the current design, then use SELECT ... UNPIVOT to put them on separate rows, then use the analytic ROW_NUMBER function to assign numbers 1-9 to each value, and finally use SELECT ... PIVOT to put them back into 1 row in that order. If you're not familiar with the built-in UNPIVOT and PIVOT features, look them up in the SQL Language manual, and see the forum FAQ:
https://forums.oracle.com/message/9362005
If you get stuck, post your best attempt (formatted), the exact results you want (formatted), and your Oracle version (e.g. 11.2.0.2.0).
Also, TYPE is an Oracle keyword, so it's not a good table name. Use something like location_type instead.

Is it possible to "convert" an encrypted system to LVM

From what I understand after reading this article in the wiki LVM is an underlying layer below the partitions that you usually work with. Basically a structure on the HDD on top of which you have your partitions and file systems.
Now, before asking my – hopefully not embarrassingly stupid – question, I should probably describe my situation:
I have two HDDs here, one of which is currently in use. Both are the same model and could be used interchangeable, they contain different data though.
· The first one, currently in use, contains /boot and three encrypted (via dm_crypt) partitions which each contain one file system (2* ext4, 1* reiserfs)
· The second one, currently lying around and only being mounted occasionally, contains one big ntfs partition encrypted with TrueCrypt
I have never worked with LVM but I would like to at least broaden my knowledge with experience so I can – when I set up my next system some time – make better informed decisions. Ideally I would "convert" my current system into something that's better to use and needs less different solutions patched together than it does now.
What I would like to have is a system with both hard drives (probably more added later) to be ready after boot with my current partitions (/boot, /, /var and /home) mounted while the second, currently only sporadically used HDD, is "integrated" in /home. And all of that (except /boot of course) should remain encrypted.
I know that I have to format the NTFS drive and as it should be part of /home – which currently is an encrypted (via dm_crypt) ext4 partition – it probably needs to be ext4. I expect it to be problematic to have a Logical Volume spread across one dm_crypt-encrypted drive and one TrueCrypted though I am not entirely clear on whether the encryption would be on top of the LVM volumes or vice versa. Anyway I assume I have to decrypt the TrueCrypt drive and encrypt it again with dm_crypt. Unless that would be dumb and you suggest something different?
The second drive (NTFS wrapped in TrueCrypt) can be completely wiped if necessary (most probably the easiest approach).
Apart from "Is that possible and/or a good idea or would you suggest not to switch to LVM and do something different (integrate the second drive in my dm_crypted system maybe?)?" my question is: "How would I tackle this problem; what would be the starting point and how could I make sure I don't accidentally erase all the data on /boot, /, /var and /home as I would like to keep my current system?"
I hope it's somehow understandable what I'm trying to do, if not please do ask.
Last edited by venehan_snakes (2011-08-30 14:52:29)

I get the impression you want to do this without backing up your data - if that is the case, you are certifiably crazy and should seek help immediately.
Bet let's assume you're not crazy, and have backed up everything. The next step is to go to the LVM section of the wiki's LUKS page, and implement one of the solutions there.

Booting into Single User when having Firmware password protected...?

Hi,
I have to put a number of iMacs to the laboratory so that users could log on but without administrative rights. In order to prevent them from booting the external devices and booting into single-user to gain root access, I have set the Firmware password, which does a nice job of blocking "C" and "CMD-S", etc commands during the bootup.
However, I wonder: in some occasions when we need to perform some troubleshooting, we could not boot the system into single-user mode. I know that I could press "Option" key during the startup, which will bring into the "Startup Manager". After then, the Manager shows the devices for booting. I find that even when I double-click the "Macintosh HD" and then press "CMD-S" immediately, the system does not perform single-user booting. Of course, pressing "CMD-S" when the Mac starts up does not work as well, as this command is blocked due to the Firmware password set.
I wonder if there is a way for us, the system administrators, to get into the single-user mode in this case. Of course, I do not expect an answer of getting an Installation DVD, booting the DVD, involving the Firmware Password Utility to disable the Firmware Password, in order to gain back the single-user booting ability...
Thanks.
Dominic

For Mac OS X, setting an firmware password will lock out all commands. While Single user mode is useful for troubleshooting, it can also be used wrong by the wrong people which is why it is disabled along with the rest of the 'startup commands'
So a few thoughts here:
- I'm asking in this case: does holding down the option show network drives in server situations such as yours? If so, you could have a network server (network startup disk) to start the computer from to do the trouble shooting you need and still be able to keep the firmware password in place
- I've been reading up on Unix commands lately and found a nice gem: nvram. Being a unix admin, you may already be familiar with it. It's the unix command for working with open firmware variables.
When you use the firmware utility to set the password the 'security-mode' variable is set to 'command' by default. I know there are two other options: 'none' (no password set) and 'full' (don't know what else this blocks). Is it possible that there is some way to selectively block the commands you want to stop (startup from other drive, zap pram, etc) but still allow Single User Mode?
Not sure myself, just putting something out there. Maybe it'll spark something for ya.

Differences between dual stack and single stack Java system copies

Hi
Can any body please provide step - by -step procedure.
Thanks in advance
Edited by: Kobby bryant on Apr 13, 2008 10:39 PM

Hello Koby,
Dual stack is ABAP+Java instance.
Single stack or Standalone is just Java instance. There is no ABAP part.
Using the installation wizard, you could select the desired option and the installation is performed accordingly.
If you are looking for any specific info, please provide the details.
Regards,
Snehal

Rebuild our XI application server from Single stack to dual stack

Hello,
We currently have an XI landscape with two application servers, the CI is of course a dual stack system, however the two app servers are single stacked, however we would like to make the two app servers into DUAL STACKs, my first guess was to rebuild the two apps from scratch and reinstall them as a dual stack apps. My Q is:
First: Do we need to rebuild both app servers, or can we make a change to the app servers to modify them to become dual stacked
Second: If we do need to rebuild both these apps, is there a specific document available to do this on Market place for installing a Dual stack app servers with PI?
Thanks in advance.
Sam
<Moved from SAP PI Forum>
Edited by: Prateek Raj Srivastava on May 13, 2010 12:27 PM

Hello,
Thank you all for your feedback,
Denny Liao, it is very interesting question you implied, we do have a J2EE directory created under the /usr/sap/SID/D30 directory:
/usr/sap/XQ9/D30
mqaapz28:xq9adm 13% ls -ltr
total 36
drwxr-xr-x   7 xq9adm   sapsys        96 Aug 24 2009 igs
drwxr-xr-x   9 xq9adm   sapsys      1024 Aug 24 2009 j2ee
drwxr-xr-x   2 xq9adm   sapsys      1024 Nov 11 2009 sec
drwxr-xr-x   3 xq9adm   sapsys      1024 Nov 24 10:48 log
obviously this app server does not have any (jlaunch/jcontrol process running) therefore it is not running as dual stacked. but interestingly enough I do see logs in the
/usr/sap/XQ9/D30/j2ee/cluster/server0/log directory created at the time of the initial install. and under:
/usr/sap/XQ9/D30/j2ee/cluster
mqaapz28:xq9adm 29% ls -ltr
total 30
drwxr-xr-x   2 xq9adm   sapsys      1024 Aug 24 2009 bootstrap
-rw-rr   1 xq9adm   sapsys        39 Aug 24 2009 version.bin
-rw-rr   1 xq9adm   sapsys      6339 Aug 24 2009 instance.properties.vmprop
-rw-rr   1 xq9adm   sapsys      3676 Aug 26 2009 instance.properties
drwxr-xr-x   7 xq9adm   sapsys      1024 Aug 26 2009 dispatcher
drwxr-xr-x 11 xq9adm   sapsys      1024 Aug 26 2009 server0
as per the note you mentioned above (741289 ) this explains how to recover a lost J2EE parameter setup, I am guessing this can be simply followed and re-enable the app server to run as a dual stack.
also my system information for the J2EE on the CI is:
System XQ9
Find other systems in SLD... Message Server
Host: mcsapxq9j
Port: 3924
Enqueue Server
Host: mcsapxq9j
Port: 3224
Database
Name: XQ9
Host: mcsapxq9dbx
Type: Oracle (Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - 64bit Production With the Partitioning and Data Mining options)
Software Components all components...
Name Version Applied
sap.com/SAP-JEECOR 7.00 SP21 (1000.7.00.21.0.20091214121410) 20100506125119
sap.com/SAP-JEE 7.00 SP21 (1000.7.00.21.0.20091214121301) 20100506124943
Licenses
Installation Number *** not yet assigned ***
System Number *** not yet assigned ***
Software Product Days Until Expiry
Download system configuration
Instance mqacsz27_XQ9_30 All processes running
Host: mqacsz27
OS: SunOS (sparcv9) 5.10
dispatcher Running
VM system properties...
PID: 21384
Name: Java HotSpot(TM) 64-Bit Server VM
Vendor: Sun Microsystems Inc.
Version: 1.4.2_21-b03
VM Parameters
Cluster
Node ID: 301932700
Kernel Version: 7.00 PatchLevel 76340.450
HTTP Port: 53000
HTTPS Port: 53001
P4 Port: 53004
Telnet Port: 53008
Info for crashes of this node
server0 Running
VM system properties...
PID: 21394
Name: Java HotSpot(TM) 64-Bit Server VM
Vendor: Sun Microsystems Inc.
Version: 1.4.2_21-b03
VM Parameters
Cluster
Node ID: 301932750
Kernel Version: 7.00 PatchLevel 76340.450
Info for crashes of this node
SDM Running
VM
PID: 21400
SDM Port: 53018
So: besides setting up the parameters in the above Note and consider the Load balancing, as there any other major setups required to start this app server as a dual stacked instance?
Thanks in advance.
SAM
Edited by: SAM_ONE on May 14, 2010 3:45 AM
Edited by: SAM_ONE on May 14, 2010 3:55 AM

Single stack vs. Dual Stack - Why does SAP recommend single stack?

Hello SAP,
I am a business partner who specializes in infrastructure consulting for SAP solutions. The SAP Consultants I am working with recently have been recommending that customers install single stack systems. I would like to know why? Are there problems with dual stack systems? Is SAP changing things in a later release and they want customers to be prepared for the change?
From an infrastucture point of view this recommendation combined with SAP NetWeaver architecture will result in an explosion of SID names which leads to an explosion of application server instances and DBMS instances and an explosion of installed servers. I know it is possible to combine SIDs into a single DBMS using MCOD and to have multiple application servers in a single physical server, but there are issues with mulitple application server instances and MCOD use which make normal maintenance operations difficult.
I think it would be much better for customers to install dual stack systems and simply adjust the SAP profile parameters to disable one stack or the other. This way, you could still have 1 stack per application server instance and you would not be have to be creative with SAP SID names!!! Creating a DBMS instance or installing an additional server is not a simple nor economical proposition.
Regards,
Zaz

I am a business partner who specializes in infrastructure consulting for SAP solutions. The SAP Consultants I am working with recently have been recommending that customers install single stack systems. I would like to know why? Are there problems with dual stack systems?
The problems are:
- difficult to size and maintain - Java + ABAP will fight for resources (memory,CPU) and there´s not much one can do to tune if either ABAP or Java as dual stack instance on a single box is running nuts (for whatever reason).
- System copies via R3load - if you want to copy a huge system (let´s say ERP 6.0 + Java stack) you need to use sapinst + R3load to do the copy. Imagine if the system is 1 TB or bigger, this is very time consuming
- Upgrades are complicated - if you upgrade a dual stack system you need to run two PREPARES and two upgrades at the same time - there are sync points each upgrade wait for the other to finish --> difficult to plan in sense of runtimes and even more notes/preparation to do (a dual stack SolMan upgrade from 3.2 to 4.0 had almost 100 notes (technical!) and two upgrade preparation guides...)
- interdependencies - example: you run ERP + EP + BI-Java on one system. You upgrade your BI (which is on a different box) to a new support package. Since the BI-Java need to be in sync with the BI ABAP support package you need to upgrade the EP too - and since there´s a direct dependency (doublestack system) you will need to install support packages on your ERP. So you finally end up in having dependency chains that a total different system (BI) will force you to upgrade/patch your ERP. And if you have e. g. a CRM connected to the same EP you will need to patch that too...
Is SAP changing things in a later release and they want customers to be prepared for the change?
No - the possibility of having a dual stack installation will be still there.
From an infrastucture point of view this recommendation combined with SAP NetWeaver architecture will result in an explosion of SID names which leads to an explosion of application server instances and DBMS instances and an explosion of installed servers. I know it is possible to combine SIDs into a single DBMS using MCOD and to have multiple application servers in a single physical server, but there are issues with mulitple application server instances and MCOD use which make normal maintenance operations difficult.
I agree - MCOD is not a good solution for this problem.
I think it would be much better for customers to install dual stack systems and simply adjust the SAP profile parameters to disable one stack or the other. This way, you could still have 1 stack per application server instance and you would not be have to be creative with SAP SID names!!! Creating a DBMS instance or installing an additional server is not a simple nor economical proposition.
There are 36 * 36 * 36 (minus a few reserved) names for SIDs- this should be enough - also for the biggest customers
Of course one could install both and disable the one you don´t need - but this won´t help in dependency thing. If you e. g. install a dual stack instance for CRM and disable the Java part, you can nicely run it. In case of an upgrade, you will need to upgrade the Java part too (see above) although you don´t use it. The upgrade will detect the doublestack and wait for the java instance to be upgraded too. Same is true vice versa. And believe me: you don´t want that
In fact it is better to separate - that´s at least our experience. The main no-go for such a configuration on our side was the dependency thing. Since they are there and you can´t do much about them we decided to have a 1:1 relationship for ABAP backend and Java "frontend". You will get more instances (and names and databases) but you can patch applications independently from each other. So an implementation of a BI patch won´t imply that you finally also patch your ERP production and other systems that connect to that portal.
There are virtualization techniques available to not need more boxes, you can consolidate them on one machine as if you were installing a dual stack so that is not really an issue. This depends, of course, on the platform and database you use (e. g. Oracle does not support production installations in VMWare). We use for our Java instances Solaris on Opteron (or Intel 64bit) and zones/containers and for the ABAP part we use Linux + Xen. Both virtualization methods come with the OS (so no additional $$$) and both are supported by SAP.
The propagated advantage of having a dual stack installation (shared memory access etc.) is so small that it doesn´t outban the additional complexity - which is definitely there.
I hope those arguments will help to understand SAPs (and the consultants) position - get back if you want more
Markus

PI system upgrade from 7.1 to 7.4 dual stack

Hi,
We want to upgrade PI system to 7.4 .currently we are using PI 7.1 system (dual stack)and want to go for 7.4 dual stack.
which one single stack or dual stack is the best approach and what are the impacts normally see when upgrading to newer version.
We are planning to install 7.4 freshly recomonded by SAP .
We need to migrate objects from older system to newer system?
I want to know the process from basis perspective also .
Import/export or migrate is the best way to move objects from older sytem to newer system.
Please suggest me any links about the process including basis point of view also suggestions for the approach.
thanks,
aman

>>>> which one single stack or dual stack is the best approach and what are the impacts normally see when upgrading to newer version.
I would prefer single stack considering the SAP's future road map but of course it depends on how much effort your company is ready to spend. Incase you have lot of CCBPM's then you'll have to redesign them using Netweaver BPM if you go with single stack.
As are going with fresh installation(migration) of dual stack then you don't need to invest much.
>>> We are planning to install 7.4 freshly recomonded by SAP .
We need to migrate objects from older system to newer system?
I want to know the process from basis perspective also .
There is wizard using which you can move the directory objects ( classical scenario's to Integrated configurations). Please use it for ID objects
Refer to the below blog for more details. (ignore blog's title. it's applicable for dual stack-> dual stack too)
Moving Integration Directory Artifacts from dual stack to single stack
For ESR you can simply export and import the tpz file.
>>> I want to know the process from basis perspective also .
They can simply follow the installation guide and execute the post installation steps properly.

Homogeneous system copy ECC 6.0 EHP4 dual stack system

Hello ,
I have a requirement of homogeneous system for the below Source system
Source system :
ECC6.0 EHP1 ABAP+java dual stack system with DB2 AIX
Required Target system:
ECC 6.0 EHP1 (same as target system except single stack java not required)
1 .I was trying to use db specific homogeneous system copy method wiht redirected restore script
2. Not possible to get downtime on source system hense it's a production system , then i used target system installaion with homogeneous system copy database specific mehthod
Problem is - it's asking migration export while creating the target system , but i don't have any migration export since i have not exported from source system .
please help us to proceed further.
Thanks in Advance.

2. Not possible to get downtime on source system hense it's a production system , then i used target system installaion with homogeneous system copy database specific mehthod
What did you choose to do in database specific method - DB2 backup/restore ?
//Backup Restore
Homegeneous system copy(database specific method)
Target -
As I understand, you have started IMPORT using SAPinst for target system installation. During IMPORT, what target system installation (only ABAP or what ?) you chose ?
//I took ABAP+JAVA
'Problem is - it's asking migration export while creating the target system , but i don't have any migration export since i have not exported from source system .'
This is because the source system is ABAP+Java, and now during target system installation, then IMPORT procedure is asking for Java Export dump.
Thanks

Splitting System Copy on BI Dual stack

Hi,
We are planning to split Our BI Dual stack system.
1) To perform ABAP system copy through Oracle tools.
2) To perform Java system copy through Sapinst and them import in to the system copy performed in step 1.
Could some one help me out, can we go ahead or not.

Hi,
> We are planning to split Our BI Dual stack system.
> 1) To perform ABAP system copy through Oracle tools.
If you use backup/restore method to build your ABAP system then you should know that Java Schema is also present in the database, so, after restore you need to drop Java schema as well or you can do this before restoring the system in source system then take backup and restore this backup on target system.
> 2) To perform Java system copy through Sapinst and them import in to the system copy performed in step 1.
>
Yes, you can do that. But I really doubt to use this method to build your production system. I would recommend following approach:
1) Install new As Java system with different <SID>.
2) Migrate all existing functionality of your existing As Java system to new As Java system. Do all the testing to check all the scenarios.
3) Drop As Java from your dual stack system.
Also, check below threads:
Splitting a dual stack system (BI ABAP/JAVA)
Best way of splitting a dual stack system into two standalone systems
Thanks
Sunny
Edited by: Sunny Pahuja on Mar 30, 2011 6:59 AM

How to change Java UME to point to LADP in dual Stack System.

Hi,
We are in the process of CRM upgrade from 5.x to 7.0. Our 5.x system is dual stack system and Java UME authentication is set to dataSourceConfiguration_r3_roles_db.xml
Right now CRM users login to Enterprise Portal using ADS authentication and access CRM using Single Sign On.
But in 7.0 they want to use JAVA stack in CRM directly using ADS.
According to this note 718383, we can't change UME to LDAP if it's set to dataSourceConfiguration_r3_roles_db.xml.
Please suggest how we can change UME to ADS during CRM upgrade to 7.0.
Thanks for your help!!
Kiran

> According to this note 718383, we can't change UME to LDAP if it's set to dataSourceConfiguration_r3_roles_db.xml.
Correct. Otherwise you will loose the 'connection' between the ABAP user and the roles.
> Please suggest how we can change UME to ADS during CRM upgrade to 7.0.
You can't. A dual stack instance requires the Java user store being in ABAP.
I would recommend anyway separating the two instances and making two out of them and no more use double stack systems. This will make changes easier and also does not force you to keep them both in sync (supportpackages).
Markus

Doubt on single stack or Dual Stack

Hello,
After logon to SAPgui how can we have come to know, system is installed on abap stack or dual stack.
Regards
K R Singh

Hello KR Singh,
the ways explained above are not sure shot ways to confirm if the system installed is single or dual stack.
HTTP Service can exist without J2EE as it did in older versions of SAP , same goes for the parameters (if they aren't configured properly).
The best way to check this is at the OS level.
Else you can do the following:
Check and validate the presence of J2EE schema in your database via transaction DB02
And combine this check with checking the presence of jlaunch and java processes in transaction ST06->Detailed Analysis->Top processes
Hope that helps.
Regards,
Siddhesh

Convert dual stack systems into single stack

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