MEGA Administration : Administrator Guide : Managing Repositories : Using Repositories : Repository Structure
   
Repository Structure
The files enabling use of a repository are all in the same folder, the location of which is stored in the system repository (SystDb).
By default, a MEGA repository is stored in GBMS format (MEGA proprietary format). You can choose another storage type for your MEGA repository: an RDBMS format (relational database management system) such as Oracle or SQL Server.
*For more details on structure and the advantages of the different server types, see RDBMS Installation deployment guide.
A repository comprises "RepositoryName".XXX files of which type and format XXX depend on the repository server type:
 
 
MEGA repository storage type
Information type
GBMS
RDBMS
Oracle
SQL Server
Semaphore
of administration
.EMA
(protects simultaneous accesses to the EMS)
N/A
N/A
Managing active
private workspaces
.EMS
N/A
N/A
Repository evolution logfile
(creation, update, etc.)
.EMV
.EMV
.EMV
Data
.EMB
inseparable from .EMA, .EMS and .EMV files)
.EMO*
.EMQ*
*: this file does not contain data; it is a pointer to data stored on the relational database server.
For each repository, folders are created dynamically while the user is working:
• Approve: contains validated reports (MS Word) detached from MEGA.
• Data: contains all business documents created in MEGA.
• Document: contains all reports (MS Word) generated from MEGA.
• RepositoryName.ix: contains the result of indexing for quick search.
*See "To allow the user to execute quick searches in MEGA solutions, the repository must first be indexed.".
• RepositoryName.Lock: contains locks created on objects during user working (when a GBMS repository is used). These files have .EMK extension.
*See "Managing Locks", page 215.
• RepositoryName.Log (repository backup logfile): contains repository backup logfiles (enabled by default). Each private workspace is saved in logfile, .MGL format.
*See "Backup logfile".
• RepositoryName.PrivateWorkspaces (private workspace backup logfile: contains files linked to active private workspaces of repository users.
*The presence of these files depends both on the server type used and on the options enabled for this repository.
These files are:
• "CCC.MGL" files, where CCC is the code associated with the user (the Backup logfile option is enabled for the repository).
*See "Backup logfile".
• "CCC.EMB" and "CCC.EMS" files (similar to those of the repository) containing data of the GBMS private workspace, where CCC is the code associated with the user.
• USER: contains a folder for each user, in which all work files generated by the user are stored. It groups the files created by backup and extraction procedures, as well as control files.
*Each folder is named "CCC", where CCC is the code associated with the user.
• WORK: contains work files created by administration operations carried out using the administration application.