Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Jeffrey_Morrow's avatar
Jeffrey_Morrow
Icon for Nimbostratus rankNimbostratus
Jun 05, 2018

Do pool servers go down during backups ?

I've noticed in the F5 logs that servers show monitoring status as down at weird times of the early morning. Could it be that during times of backups, they fail health-checks? And its not all of the...
big-ip
LTM
security
Mantosh_323653's avatar
Mantosh_323653
Icon for Nimbostratus rankNimbostratus
Jun 06, 2018

Health check traffic should not get interrupted during the backup of the servers. However, F5 might mark down the server. If, you are using a custom monitor (HTTP,HTTPS or EAV) and it fails to get the "recv string" within the specified time out value because of below reasons:

 

  1. Backup is choking the bandwidth utilization.
  2. High CPU/Disk utilization on the servers.
  • Jeffrey_Morrow's avatar
    Jeffrey_Morrow
    Icon for Nimbostratus rankNimbostratus
    Jun 07, 2018

    Thanks. I'm having our systems people checking and comparing timestamps of the alerts, with when the backups were performed.