Cisco ASA 5580

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Cisco ASA 5500 Series Configuration Guide using ASDM
OL-20339-01
Chapter 71 Configuring Logging
Configuring Logging
Changing the Amount of Internal Flash Memory Available for Logs
To change the amount of internal flash memory available for logs, perform the following steps:
Configuring the Logging Queue
To configure the logging queue, perform the following steps:
Path Purpose
Step 1
Configuration > Device Management > Logging
> Logging Setup
Specifies the maximum amount of internal flash memory
available for saving log files. By default, the adaptive security
appliance can use up to 1 MB of internal flash memory for log
data. The minimum amount of internal flash memory that must
be free for the adaptive security appliance to save log data is 3
MB.
If a log file being saved to internal flash memory would cause
the amount of free internal flash memory to fall below the
configured minimum limit, the adaptive security appliance
deletes the oldest log files to ensure that the minimum amount
of memory remains free after saving the new log file. If there
are no files to delete or if, after all old files have been deleted,
free memory is still below the limit, the adaptive security
appliance fails to save the new log file.
Step 2
Configuration > Device Management > Logging
> Logging Setup
Specifies the minimum amount of internal flash memory that
must be free for the adaptive security appliance to save a log
file.
Path Purpose
Configuration > Device Management > Logging >
Logging Setup
Specifies the number of syslog messages that the adaptive
security appliance can hold in its queue before sending them
to the configured output destination. The adaptive security
appliance has a fixed number of blocks in memory that can be
allocated for buffering syslog messages while they are waiting
to be sent to the configured output destination. The number of
blocks required depends on the length of the syslog message
queue and the number of syslog servers specified. The default
queue size is 512 syslog messages. The queue size is limited
only by block memory availability. Valid values are from 0 to
8192 messages, depending on the platform. If the logging
queue is set to zero, the queue will be the maximum
configurable size (8192 messages), depending on the
platform. The maximum queue size by platform is as follows:
• ASA-5505—1024
• ASA-5510—2048
• On all other platforms—8192