Troubleshooting NetScaler

Disk issues

There are two kinds of disk issues that NetScaler administrators may come across:

• Disk hardware issues: There are three ways to identify disk hardware issues:
  • SNMP Alerts is one way to identify it. You can configure the alarm HARD-DISK-DRIVE-ERRORS
  • Look for entries in the /var/log/messages file – the keyword is TIMEOUT
    
  • Run the hardware analysis file /netscaler/ns_hw_err.bash, which will run through all the log files and capture the TIMEOUT entries for you.

  Note

  Note that a very occasional TIMEOUT can occur with a perfectly healthy NetScaler. There is, however, a problem if you see a few of them in succession and that is the symptom you are ...