NetScaler SDX 11.1 Build 53.11 alerts that 0 SSL cards/chips are detected.

The following is an example alert: 
0 of 16 SSL Chips are detected
0 of 2 SSL Cards are detected
FailureObject : SSL Cores Information : message : SSL Cores 0, expected 16, 

To resolve this issue upgrade to NetScaler version 11.1 54.x once it becomes available.

Workaround

Complete one of the following actions as workaround:

1. Complete the following steps as a workaround:
   1. Log on to dom0 (XenServer).
   2. Check the free disk space available using # df command. If disk space is full and there are large log files under /var/log directory then this is the cause of this issue.
   3. Check the file permissions using the following command:
      # ls -l /opt/xensource/bin/rotate_logs_by_size
      -r--r--r-- 1 root root 3794 Mar 27 13:48 /opt/xensource/bin/rotate_logs_by_size
      If the file permissions are "-r--r--r--" without any "x" then this is the problem.
   4. Backup large file/logs and remove them to free up space on disk.
   5. Change file permission by using following commands:
      # chmod 555 /opt/xensource/bin/rotate_logs_by_size

      Recheck file permission using the following command:
      # ls -l /opt/xensource/bin/rotate_logs_by_size
      -r-xr-xr-x 1 root root 3794 Mar 27 13:48 /opt/xensource/bin/rotate_logs_by_size

2. Downgrade to NetScaler version 11.1 52.13.

Problem Cause

This is a known issue with issue ID 683171.