Aix Error Log Clear
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Linux Error Log
logging of events—some are errors requiring attention and others are just notifications. For system administrators, tasked to make sure the system is running without major issues, logging provides alerts or apprises them https://www.ibm.com/support/knowledgecenter/ssw_aix_61/com.ibm.aix.cmds2/errclear.htm of events as they happen. AIX offers different logs depending on the action and when it occurred. These logs hold information on the boot-up process, console, hardware and system software events. It’s up to the system admin to take action on these events, because once AIX has published the log, its job is done. Logs, Logs, Logs AIX not only offers the errpt but also http://www.ibmsystemsmag.com/aix/administrator/systemsmanagement/error_logs/ other error reporting logs. Using the alog command one can list and pick a log to view: # alog -L boot bosinst nim console cfg mdmplog lvmt lvmcfg dumpsymp When issues arise during the boot-up process, for example, and you’re not at the console, you can review the start-up process messages, particularly the boot and console messages. To list the available logs: alog -o -t For example, to view the console log: alog -o -t console Logging Your Own Entries The standard errpt list hardware or software events in AIX that have occurred. However, you might want a message generated and inserted into errpt after some user interaction, for instance, if a system admin has made a change. This allows the change notification to be visible via errpt. Like the logger command that writes to the system log (messages file), errlogger will write an operator notification entry to the error log. For example, having completed an AIX upgrade, you could post that to the error log, so other users could view it, like so: errlogger "AIX upgrade completed - no errors- test" Working With errpt The first thing AIX admins sho
and other applications log Errlog : used for system, hardware, kernel and other applications log Syslog : used for https://abcofaix.wordpress.com/tag/errpt-a/ internet daemons and other applications log Commands: # alog –L This command will list all log types that are available under alog. # alog –t boot –o # alog –t console http://aix4admins.blogspot.com/2011/08/error-logging-usrliberrdemon-restarts.html –o # alog –t NIM –o # errpt –a Error logging starts automatically with OS initialization and stops only when the system is shutdown. Error log is maintained int he error log file /var/adm/ras/errlog file Errdaemon is started by default in rc.boot Command used to restart errdemon is: # /usr/lib/errdemon This will record error information from /dev/error file and store it in system’s default error log file /var/adm/ras/errorlog. To stop, command used is: # /usr/lib/errstop To find the path to system error log, command used: # /usr/lib/errdemon –l This command will list details about aix error log error log. To change the size of error log, command used is: /usr/lib/errdemon –s “size in bytes” For eg: To change size to 2 MB, /usr/lib/errdemon –s “2000000” Errpt command generates report from error log file. # errpt –a command is used to generate a report from error log file. # errclear 0 command will clear the error log. Clear errors up till 5 days ago, command used is: # errclear 5 To list all errors on hdisk0, command used is: # errpt –N hdisk0 To log operator messages, command used is: # errlogger For real time error logging, command used is: # errpt –c > /dev/console To install or redirect messages to system error log, command used is: # errinstall To update the error record template repository, command used is: # errupdate To log system messages, AIX server uses syslogd. These are stored in /etc/syslog.conf file, which is further used to log information about ftp access to a file. Happy Learning! Written by RA May 12, 2012 at 9:19 am Posted in Abc of Aix, System Admin Tagged with AIX, AIX Basics,
Backup Commands CPU - Processes Crontab - At Date - Time Devices Dump - Core Errpt - Alog Firmware IO - AIO, DIO, CIO Memory - Pag. Space ODM Printing SRC Startup - Shutdown Syslogd System - Kernel Tunables User - Authentication User - Group User - Login User - Password HMC ASMI DPO HMC Basics/Console HMC CLI HMC/P7 Install HMC Upd./Upgr. ISD Basics RMC NETWORKS Basics - Dev., Route Basics - Prot., Subnet Basics - VLAN Commands DSH - PSSH Eth. Chan. Ethernet Adapter IVE - HEA Netcd NFS RSH - RCP Sendmail SSH - SCP SSH - X11 Telnet - FTP NIM Basics - Commands Bootpd - Tftpd Client (Install) Client (Machines) LPP Source MKSYSB Nimadm SPOT PERFORMANCE Basics CPU - General CPU - Virtualization I/O - LVM I/O - iostat, fcstat Netw. - General Netw. - SEA, Virt. Eth. RAM - General RAM - svmon RAM - VMM Tools - topas, nmon Tools - vmstat STORAGE - BACKUP Adapter Basics - SAN Basics - Settings EMC Hitachi HP EVA - SSA MPIO SDD SDDPCM Tape Devices UPD. - INSTALL Basics Commands IFIX POWERHA Appl. Monitor Basics Build - Configure CAA Clverify Commands - Cases Config too long DARE - Snapshot Disk Heartbeat Network - Topology Storage - VG, NFS POWERVM Basics Commands AME - AMS CDROM - DVDROM LPM NIB - LA NPIV SEA Shared Storage Pool SR-IOV - vNIC VIOS update/upgrade Virt. Eth. Adapter Virt. Proc. - Ent. Cap. VSCSI VSCSI - Stor. Pool EXTRA +others alt_disk awk - sed bash citrix java kdb ksh linux - install locale multibos perl profiles rbac Rsh samba screen script sudo syslog-ng vi Errpt - Diag - Alog ERROR LOGGING: The errdemon is started during system initialization and continuously monitors the special file /dev/error for new entries sent by either the kernel or by applications. The label of each new entry is checked against the contents of the Error Record Template Repository, and if a match is found, additional information about the system environment or hardware status is added. A memory buffer is set by the errdemon process, and newly arrived entries are put into the buffer before they are written to the log to minimize the possibility of a lost entry. The errlog file is a circular log, storing as many entries as can fit within its defined size, the default is /var/adm/ras/errlog and it is in binary format The name and size of the error log file and the size of the memory buffer may be viewed with the errdemon command: # /usr/lib/errdemon -l Log File /var/adm/ras/errlog Log Size 1048576 bytes Memory Buffer Size 32768 bytes ------------------------------ /usr/lib/errdemon restarts the errdemon