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Difference between standard system copy and homogenous system copy

sateeshtalluri
Explorer
0 Kudos

Hi friends

while doing system copy below 2 options found

standard system copy/migration(load-based)

homogenous system copy(backup/restore)

what is the difference?which one is best for installing a new system with production database?

Accepted Solutions (1)

Accepted Solutions (1)

former_member182657
Active Contributor
0 Kudos

Hi Sateesh,


you mean both options are used to do system copy

Yes both the options are used to perform system copy.You could opt any from the above suggested.


which option is best for below scenario

As both options are standard SAP practice & recommended,but in my opinion Homogeneous system copy (Backup/Restore method) is faster than the standard system copy (Export /Import) method.

Hope this will help you .

Thanks,

Answers (6)

Answers (6)

Brindavan_M
Contributor
0 Kudos

Hi sateesh,

Even you can use export and import method parallel using socket method. if your doing database refresh then there are some post steps & SQL scripts  need to follow to bring the system back if your copy PRD to QUA or anyother system.

mostly people are following backup and restore method. you can plan accordingly as per your need.

1) Homogeneous system copy --> system copy will done with same OS/DB using backup and restore or copy the filesystem.

2 ) Heterogeneous system copy --> system copy can be done with different OS/DB using some tools.

3) standard system copy  --> Export and import method using sapinst or Software provisional manager

As already said by regan I hope now you understand the scenario

Thanks,

BM

sateeshtalluri
Explorer
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Thank you all for giving valuable replies.you mean both options are used to do system copy.please explain clearly which option is best for below scenario?why not other?

Source                  

database:oracle 300gb

os:aix

sap release : netweaver 7.0

Target:

os:aix

database: oracle

Reagan
Advisor
Advisor
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For R3load based system copies you need the source system downtime where as backup and restore method does not require the source system to be down.

Former Member
0 Kudos

Hi Sateesh,

If you refer google and scn you will get the answer for this, but to just brief you while you are going for

Homogenous System Copy (Backup / restore).

This means you are doing system copy using a Backup / restore method. As others have suggested the tool will stop in between and ask you to restore the backup of the Source database and then you can continue.

For Load based System copy

You go on Source system and perform a export of whole database (Abap or Java). The tool creates a Export CD / DVD kind of thing which usually we get while we do installation.

While doing Import you use the same Export Dump (CD/ DVD as mention up) to perform import on target system.

Cheers

Deepanshu Sharma

Reagan
Advisor
Advisor
0 Kudos

>>standard system copy/migration(load-based)<<

This is selected if you are doing an R3load based system copy. The whole database content is exported as a dump file at the OS level.

>>homogenous system copy(backup/restore)<<

This is selected if you are doing a system copy using backup and restore procedure. The tool will stop in the middle to restore the database backup and once done you will continue with the system copy.

Cheers

RB

former_member876552
Discoverer
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If you are implementing new SAP system, where OS/DB are same in source and target then go for homogeneous system copy or else perform heterogeneous system copy

manumohandas82
Active Contributor
0 Kudos

Homogenous system copy  ( backup /restore )  , if the environments are the same ( OS/DB )

Thanks ,

Manu