See the following table for a side-by-side comparison of the purge and overwrite options. For more details, see Purge and Overwrite.
Purge |
Overwrite |
---|---|
• If no space is available on the media, purge deletes archive sets that have exceeded their retention settings to create space for new sets. • Individual sets are purged only if their retention period has expired. • Sets are purged only if there is not enough space on the media for the archive job. • Sets are purged until there is enough space to complete the job. |
• If all sets on the media have exceeded their retention, overwrite deletes them and replaces them with the new sets. • All sets on the media are overwritten only if all have exceeded their retention settings. • All sets are overwritten regardless of available space. |
• Job fails and nothing is written to the media if purge cannot create adequate space for the entire job. |
• Job fails and nothing is written to the media if overwrite cannot create adequate space for the entire job. |
• Not supported for tape. |
• Supported for all media. |