Disk storage
Disk storage is the primary, short-term storage location for reports.
If you do not copy reports to archive storage when you store them in Content Manager OnDemand, then you need to consider how you can recover the reports in the event that you need to do so.
Disk storage can be protected by maintaining it on RAID storage subsystems. RAID storage can provide excellent availability, allowing users to access reports even if a disk or controller fails. However, RAID storage is not fail-safe. There might be situations when, because of multiple disk or controller failures, users cannot access reports. It is recommended that you always maintain a backup copy of reports in archive storage.