**Description**: Policy which tries to find a group of data sets with a total size from a specified interval. This is important in case of [Multi Data Set Archiving](https://unlimited.ethz.ch/display/openBISDoc2010/Multi+data+set+archiving). Grouping can be defined by space, project, experiment, sample, data set type or a combination of those. Groups can be merged if they are too small. Several grouping keys can be specified.
**Description**: Policy which tries to find a group of data sets with a total size from a specified interval. This is important in case of [Multi Data Set Archiving](../../uncategorized/multi-data-set-archiving.md). Grouping can be defined by space, project, experiment, sample, data set type or a combination of those. Groups can be merged if they are too small. Several grouping keys can be specified.
Searching for an appropriate group of data sets for auto archiving is logged. If no group could be found an admin is notified via email (email address specified in `log.xml`). The email contains the searching log.
