(DTERP-2205) Introduction
- SNP
SNP OutBoard™ ERP Archiving is a content repository solution that runs on the SAP system and is accessed via SAP HTTP service. HTTP Service of SNP OutBoard™ ERP Archiving is built on SAP Internet Communication Framework [ICF]. Implementation of SNP OutBoard™ ERP Archiving with Storage Management interface fulfills BC AL 7.40 communication protocol. All implementation related to our SNP OutBoard™ ERP Archiving is SAP ABAP based.
Prerequisites
- SAP release: NetWeaver 7.01 SP-level 018
- HTTP enabled
- System Service User with all required authorizations listed in the chapter (DTERP-2205) Security
System ICM parameters
Part of the prerequisites that should be pre-configured before deployment of SNP OutBoard™ ERP Archiving is system ICM parameters which enable communication via an HTTP request with the target storage.
| Parameter name | Description | Unit | Recommended value | SAP default value |
|---|---|---|---|---|
| icm/max_services | Max. number of ICM services | Integer value | 30 | 30 |
| icm/listen_queue_len | Max. number of requests kept in the queue while a connection is open | Integer value | 512 | 512 |
| icm/req_queue_len | Max. number of waiting requests | Integer value | Larger than icm/max_threads | 1000 |
| icm/max_threads | Max. number of worker threads of ICM | Integer value | 3200 | 250 |
| icm/min_threads | Min. number of worker threads of ICM | Integer value | 10 | 10 |
icm/min_spare_threads | Number of worker threads ICM tries to keep free | Integer value | 3 | 3 |
icm/max_conn | Max. number of opened connections at one time | Integer value | 3500 | 500 |
| icm/max_sockets | Max. number of sockets open (at the same time) in the ICM or in the SAP Web dispatcher | Integer value | icm/max_conn + 100 | 2048 |
| mpi/total_size_MB | Total memory size in MB used for MPI | Megabytes | (min(0.06 * $(icm/max_conn) + 50, 2000)) | 80 |
| mpi/buffer_size | Buffer size in bytes for memory pipes | Bytes | 131072 | 65536 |
| mpi/max_pipes | Max. number of memory pipes (MPI) | Integer value | ($(icm/max_conn) * 2 + 10) | 4000 |
icm/HTTP/max_request_size_KB | Max. size of a file to be processed | Kilobytes | <should be defined by customer> | 102400 |
| icm/server_port_<xx> - PROCTIMEOUT | Max. processing time of one HTTP request | Seconds | 1800 | 60 |
rdisp/plugin_auto_logout | Max time of no action for plugins | Seconds | 1800 | 1800 |
| icm/keep_alive_timeout | Max. waiting time of HTTP request which was already successfully processed | Seconds | 300 | 60 |
| icm/conn_timeout | Timeout for opening a connection | Milliseconds | 60000 | 5000 |
| icm/traffic_control | Timeout for receiving a request (Centralized deployment) | Character string (NETTIMEOUT in sec.) | 300 | 30 |
icm/HTTP/client/keep_alive_timeout | Keep-alive timeout for inactive client connections | Seconds | 10 | 10 |
| icm/ms_keepalive_s | Specifies the frequency at which the ICM sends keep-alive messages to the message server to ascertain a message server failover | Seconds | 60 | 60 |
More information can be found in the following link.
You can check the correct setup of the ICM parameter using health check transaction /DVD/CRP_ICM.
Landscape Integration
SNP OutBoard™ ERP Archiving supports two scenarios of integration in the customer landscape.
- Centralized – SNP OutBoard™ ERP Archiving runs on a different SAP system than those which are subjects of archiving.
- Pros: One system – one Outboard configuration
- Cons: Potential of performance decrease at high loads (bottleneck effect)
- Decentralized – SNP OutBoard™ ERP Archiving runs on the very same SAP system which is the subject of archiving.
- Pros: No need to dedicate a separate SAP system to host the Outboard service, Mitigation of a potential bottleneck effect
- Cons: Separate maintenance on each SAP instance with Outboard
The decentralized deployment is recommended option based on our best practices from implementation projects.
Content Management
The main responsibility of content management is to manage SAP data and unstructured documents. Content management stores information about a source client and target storage for each stored data and document.
Following functions are provided by content management:
- register source client with a storage assignment
- create read, update, delete document components (units)
- manage document information and metadata
- manage component information and metadata
- The content management uses binary storage of the storage management solution for storing document components (units) and is responsible for creating and assigning of stored packages
Storage Management
Storage Management works as a middleware between the SNP OutBoard™ ERP Archiving and external storage using the set of connectors for supported storage types.
SNP OutBoard™ ERP Archiving uses exclusively binary storages as the data that is a subject of standard SAP archiving is stored as flat files (ADK archive files & document attachments).
More detailed information regarding the Storage Management and supported storage types are available here.
