[13761100] Too Many Files Open

[All Linux Operating Systems] The multipath command will issue an error indicating that too many files are open when the number of open files exceeds the configured host system limit.

To determine the number of files open, run the following command:

# lsof  |  wc -l

Compare the result of that command with the host system limit. To determine the host system limit, run the following command:

# ulimit

If necessary, increase the system limit by following the instructions in the operating system documentation. In addition, set the max_fds value in the /etc/multipath.conf file to an appropriate limit.

Some operating systems may require a host reboot is required to ensure that the system limits are updated.