Prerequisites

Backup

It is highly recommended to backup the current TPE instance before upgrading. For more details, see ThingPark Enterprise Administration and Troubleshooting Guide.

Disk space

Before launching the upgrade, make sure there is enough free disk space on the TPE instance.

To check disk space on the TPE instance:

1. Connect to the server.

   Execute an ssh command to connect to the server:

   ssh support@${IP_OR_HOSTNAME_OF_TPE} -p 2222

2. Check disk space:

   df -h

   Here is a sample of the output of the command:

   [support@tpe-factory ~]$ df -h
   Filesystem Size Used Avail Use% Mounted on
   /dev/mapper/centos-root 447G 30G 417G 7%

   Make sure that available disk space is at least 15 GB.

AVX CPU instruction enabled

IMPORTANT

ThingPark Enterprise requires use of the AVX CPU instruction set.

To confirm that your hosts (the three nodes in HA case) support AVX instructions, run the following command:

grep -i avx /proc/cpuinfo

The presence of one or more AVX flags in the output indicates that the processor supports these instructions.
If no AVX flags are found, it means that the CPU or the system configuration (for example, in a virtualized environment) does not support them.