Error en Event Viewer

Hola... soy nuevo en esto de la adm de servidores. Estuve revisando el
event
viewer y me aparece la siguiente alerta:

Event ID: 2089

This directory partition has not been backed up since at least the
following
number of days.

Directory partition:
DC=ForestDnsZones,DC=contraloria,DC=gov,DC=ve

'Backup latency interval' (days):
30

It is recommended that you take a backup as often as possible to recover
from accidental loss of data. However if you haven't taken a backup since
at
least the 'backup latency interval' number of days, this message will be
logged every day until a backup is taken. You can take a backup of any
replica that holds this partition.

By default the 'Backup latency interval' is set to half the 'Tombstone
Lifetime Interval'. If you want to change the default 'Backup latency
interval', you could do so by adding the following registry key.

'Backup latency interval' (days) registry key:
System\CurrentControlSet\Services\NTDS\Parameters\Backup Latency Threshold
(days)


Por lo que entiendo, no hace la replica desde hace 30 dias.. que puedo
hacer
para solventar esto, o que puedo verificar para var cual es la raiz de
este
problema.. gracias de antemano y por la paciencia