M86 Security M86 Threat Analysis Reporter, User Manual, Page: 598 / 938

SR S
YSTEM
C
ONFIGURATION
S
ECTION
C
HAPTER
2: C
ONFIGURING THE
S
ERVER
570
M86 S
ECURITY
U
SER
G
UIDE
Expiration Rules
The SR calculates the maximum number of weeks of data it
can store, based on the storage capacity of the hard drive
and the average number of end user hits per day within the
last eight weeks.
Each night at 11:30 p.m., the SR checks to see if it will soon
be running out of storage capacity—by finding the week with
the highest end user hit activity and assuming this may be
the trend for future end user activity—then determines
whether it will have enough storage space for the current
week and the following week.
If the SR anticipates it may run out of allocated data storage
space by the next week, the oldest week’s data (Sunday
through Saturday period) stored on the server is expired—
i.e. deleted from the database.
Once data expires, it cannot be recovered.
WARNING : Storage capacity maintenance is performed each
evening between 11:30 p.m. and midnight. During this period, the
database will be locked.