Hello
Can we perform all L2 and L3 basis activities in IDES like,
Kernel upgrade, Support packs, OS migrations, Refresh, Transports, etc..
These activities can be performed.
Oracle upgrade, DB2 fix packs,
These are database related activities and it doesn't matter whether the application running on it is IDES, DRM, ECC or BW, etc.
Is the support pack released for SAP ERP same as SAP IDES
SAP does not release SP's for IDES systems. Standard SAP SP's are applicable for the IDES systems.
Can we apply the support packs like PI and API same as SAP ERP in SAP IDES
You can apply the standard SP's to the IDES systems. Like I mentioned before SAP does not release SP's specific for the IDES systems.
What are the limitations in IDES in compared to SAP ERP.
An IDES system is basically a demo system and it is not specific for one product like ERP. IDES systems are available for any product of SAP, like IDES for ECC, IDES for CRM, IDES for SCM, IDES for BW, etc. It is used to demonstrate the use of an SAP system in a business environment. That doesn't mean it will have the full functionality. That is one of the main reasons as to why an IDES system should not be used as a production system.
I suggest you to read this SAP note and the links below to understand more about IDES systems.
799639 - IDES - General Information about the usage of IDES systems
Introduction (SAP Library - IDES - The SAP Model Company)
The IDES Release Strategy (SAP Library - IDES - The SAP Model Company)
Regards
RB