CSEHelp currently utilizes three types of backups:
- Full backup
- All files in a given tree are written to tape regardless
of date/time stamp.
- Differential backup
- All files in a given tree are written to tape if changed
from last Full backup.
- Incremental backup
- All files in a given tree are written to tape if changes
from last backup of any type.
Backup Retention Policies
CSEHelp preserves backups
for different periods depending on the type of backup.
- Full backups are preserved for one year.
- Differential backups are preserved for six months.
- Incremental backups are preserved for two months.
Those members of the department needing longer period for data
archiving should contact CSEHelp for customized service.  | 
