Enable log redundancy across collectors | If you select this option, each log in the
Collector Group will have two copies and each copy will reside on
a different Log Collector. This redundancy ensures that, if any
one Log Collector becomes unavailable, no logs are lost: you can
see all the logs forwarded to the Collector Group and run reports
for all the log data. Log redundancy is available only if the Collector
Group has multiple Log Collectors and each Log Collector has the
same number of disks. Log redundancy applies only to newly ingested
logs after the setting is enabled and not to existing logs. In
the page, the Log Redistribution State
column indicates the completion status of the process as a percentage.
All the Log Collectors for any particular Collector Group must be
the same model: for example, all M-500 appliances or all Panorama
virtual appliances.
Because enabling redundancy creates
more logs, this configuration requires more storage capacity. Enabling
redundancy doubles the log processing traffic in a Collector Group,
which reduces its maximum logging rate by half, as each Log Collector
must distribute a copy of each log it receives. (When a Collector
Group runs out of space, it deletes older logs.)
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