System Requirements

A content migration with migration-center always involves a source system, a target system, and of course the migration-center itself.

This section provides information about the requirements for using migration-center in a content migration project.

For best results and performance it is recommended that every component will be installed on a different system. Hence, the system requirements for each component are listed separately.

The required capacities depend on the number of documents to be processed. The values given below are minimal requirements for a system processing about 1.000.000 documents. Please see the Sizing Guide for more details.

Database Server

Oracle

Category	Requirements
RAM	4 GB - 8 GB of memory for migration-center database instance
Hard disk storage space	Depends on the number of documents to migrate roughly 2GB for every 100.000 documents.
CPU	2-4 cores, min. 2.5 GHz (corresponding to the requirements of the Oracle database)
Oracle version	11g Release 2, 12c Release 1, 12c Release 2, 18c, 19c, 21c
Oracle Editions	Standard Edition One, Standard Edition, Enterprise Edition, Express Edition Note: Express Edition is fully supported but not recommended in production because of its limitations.
Oracle instance	Character set: AL32UTF8 Necessary database components: Oracle XML DB
Operating system	All OS supported by Oracle

For a typical Oracle Database creation please refer to Oracle Database Creation. For more advanced topics regarding Oracle Database configuration and administration please refer to Database Administrator’s Guide.

PostgreSQL

Category	Requirements
RAM	4 GB - 8 GB of memory for the PostgreSQL server
Hard disk storage space	Depends on the number of documents to migrate roughly 2GB for every 100.000 documents
CPU	4 cores
PostgreSQL version	15.4
Operating system	All OS supported by PostgreSQL

Server Components (Job Server)

Category	Requirements
RAM	By default, the Job Server is configured to use 1 GB of memory. This will be enough in most of the cases. In some special cases (multiple big scanner/importer batches) it can be configured to use more RAM.
Hard disk storage space (logs)	1GB + storage space for log files (~50 MB for 100,000 files)
Hard disk storage space (objects scanned from source system)	Variable. Refers to temporary storage space required for scanned objects. Can be allocated on a different machine in LAN.
CPU	2-4 Cores, min. 2.5 GHz
Operating system	Windows Server 2012, 2016, 2019, 2022 Windows 10 Linux
Java runtime	Oracle/OpenJDK JRE 8, Oracle/OpenJDK JRE 11, Oracle/OpenJDK JRE 17* 32 or 64 bit

Note that not all connectors are available on the Linux version of the jobserver.

Please check individual connector user guides for specific java version restrictions.

WebClient

Category	Requirements
RAM	4 GB (for the WebClient)
Hard disk storage space	200 MB
CPU	min 1 core
Operating system	Windows Server 2016, 2019, 2022 Windows 10
Java runtime	Oracle/OpenJDK JRE 8 64-bits Oracle/OpenJDK JRE 11 64-bits
Browser	Chrome or Edge