You can create, enable, or, modify the delete vulnerability item (VI) and
vulnerability group (VG) delete rules. Use auto delete to remove older records from the VI
and VG tables.
Over time, a large amount of closed records are likely to accumulate in the VI and VG
tables in your instance. Many of these records may have been closed for more than
365 days but have not been removed. Use auto delete rules to remove many of these
older, closed records. Removing these records not only significantly reduces the
number of records in the VI and VG tables, deleting them also helps you maintain
high performance.
Although auto delete targets records by default that have been closed for 365 days,
the very first run may attempt to purge too many records in a single transaction.
Depending on the size of your environment, you may prefer to stagger the deletion
process to limit the scope of the query. For example, you might start your first run
for closed records that are older than 450 days. After that run is completed, you
might work your way down by smaller increments (425, 400, 375) until you have
reduced the number of records that are older than 365 days.
There are two rules supplied with your Now Platform® that
automatically delete closed records that meet specified conditions along with any
records that refer to them. One rule deletes vulnerable items, and the other rule
deletes vulnerability groups. By default, these auto delete rules are disabled so
that you are required to enable them manually prior to deleting any records. You can
choose the two pre-configured rules that are provided with your instance, or, you
can create your own.
