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Forum Discussion

Satriaji's avatar
Satriaji
Icon for Cirrus rankCirrus
May 09, 2018

What the impact of this log if reach to 100%? How to fix it.

I am a newbie NE F5, when I execute the command "df -h" in SecureCRT to view a File System of DC1EXNETF5N-2, here the preview:

 

 

  1. What are the impact of that logs? . For the example ( /var/log) ( /var/tmstat) ( /var/asmdata1) etc
  2. What the fungsion of every the information?
  3. How the impact if the logs reach to 100% ? How to fix it ?
application delivery
TMOS
TMSH

2 Replies

  • murali_125469's avatar
    murali_125469
    Icon for Nimbostratus rankNimbostratus
    May 09, 2018

    "By default, the BIG-IP system compresses log files on a daily basis and deletes archived copies that are older than eight days. Archived log files are stored in the /var/log directory "

     

    please go through the below link , it will be a good start to understand BIGIP log files

     

    https://support.f5.com/csp/article/K16197

     

  • Simon_Blakely's avatar
    Simon_Blakely
    Icon for Employee rankEmployee
    May 10, 2018

    However, allowing any file system (particularly /var/log or /var/lib/mysqld) to reach 100% utilization is a really bad thing that may cause your BigIP to behave really badly.

     

    • Don't enable debug logging for any longer than needed
    • If you want to log data from irules, use an HSL pool for off-box logging
    • clean up archives/qkviews/tcpdumps after use