User Guide Part 2

26 7signal solution 137
7signal Solutions, Inc., 526 S. Main Street, Akron, Ohio 44311, USA, 855-763-9526, [e-mail], www.7signal.com
7signal Sapphire Carat User Guide Release 5.0
b. Select “Purge now”
c. Progress can be followed from progress bar.
4. Select “Close”
Figure 81: Instant measurement data purge ongoing
If the database contains huge amount data that is going to be purged, the purge
process may take very long time, even several days.
26.2 Database backup
It is possible to backup databases in 7signal Sapphire. Given a proper backup, the system state
may be recovered completely in case of system crash. There are two remarkably different
alternatives and an option not to backup the database. The default in 7signal Sapphire is no
backup. While this option is known to be non-optimal for any production environment, it is
chosen as default to force every organization to define own backup policy.
26.2.1 Backup options
The backup process will use /tmp directory by default and take a lot of disk space.
It is highly recommended that the default backup work directory is changed to
directory residing on a large file system (not the file system on which the actual
database resides). The directory can be changed with 7db-utility.
Example:
# 7db backup workdir set /largefilesys
Automated backup with server downtime
Backup with downtime is a circadian backup that pauses the measurements by stopping the
Carat server and closing the underlying database connections. In quiescent mode a full backup
of the database is made and stored to the desired location in the Carat server file system. The
user is responsible for managing the backup files, moving and purging and so on. This type of
logging is later referred as offline backup.