Monitor unlimited number of servers
Filter log events
Create email and web-based reports

Direct access to Microsoft articles
Customized keywords for major search engines
Access to premium content

Event ID: 20 Source: Oracle

Source
Level
Description
Archive process error. ORACLE Instance prod - Can not allocate log. archival required.
Comments
 
This information was found on Oracle's Metalink site:

Cause: The command "Alter system archive log current" forces manual archiving of the current log, hence the shadow process on which the command was issued will perform the archiving. It will archive the log file and write messages to the trace/alert using the prefix ARCH.
If automatic archiving is turned on then the archiver process will also try to archive this log file, however it will not be able to acquire the lock "kcrrlt" i.e. the lock to protect multiple arch processes from archiving the same logfile.
The failing process will then write to a trace/alert message that it was unable to archive the logfile.
In Oracle 9i the message in the alert.log is more informative:
   ARC1: Beginning to archive log# 2 thrd# 1 seq# 24
   ARC1: Unable to archive log# 2 thrd# 1 seq# 24
   Log actively being archived by another process.

By setting the parameter log_archive_trace = 127 in the INITsid.ORA file, the archiving steps for both the shadow as well as the archiver process can be traced.
Fix: The command “Alter system archive log current” is commonly used in hot-backup scenarios. The message "Failed to archive" can be ignored, as long as it is followed by a “Completed archiving” message.
Workaround: Do not issue the command "Alter system archive log current".

Windows Event Log Analysis Splunk App

Build a great reporting interface using Splunk, one of the leaders in the Security Information and Event Management (SIEM) field, linking the collected Windows events to www.eventid.net.

Read more...

 

Cisco ASA Log Analyzer Splunk App

Obtain enhanced visibility into Cisco ASA firewall logs using the free Firegen for Cisco ASA Splunk App. Take advantage of dashboards built to optimize the threat analysis process.

Read more...