Upgrading to Transparent cloud tiering 1.1.2 from Transparent cloud tiering 1.1.0 or 1.1.1

This topic describes the procedure for upgrading to Transparent cloud tiering 1.1.2 from Transparent cloud tiering 1.1.0 or 1.1.1.

Ensure the following before you start the upgrade the process:

Transparent cloud tiering service is stopped on all the server nodes by using the mmcloudgateway service stop command.
IBM Storage Scale is at release 4.2.2. Migration might fail if your IBM Storage Scale release is different.
No data migration or recall is in progress.

Perform the following steps:

Copy the gpfs.tct.server-1.1.2.x86_64.rpm file to each of the nodes that is specified as Transparent cloud tiering server nodes.
Run this command:
```
rpm -Uvh gpfs.tct.server-1.1.2.x86_64.rpm
```
Note: Transparent cloud tiering statistics on the IBM Storage Scale GUI is enabled only when the ENABLE_MCSTORE parameter in the /usr/lpp/mmfs/gui/conf/gpfsgui.properties is set to "true". During upgrade from IBM Storage Scale 4.2.1.1 to 4.2.2, this parameter is reset to "false", even though its original value is "true", and the Transparent cloud tiering statistics does not show up on the IBM Storage Scale GUI. Therefore, it is recommended to manually set the value of the property to "true" after an upgrade. To activate this change, you must restart the gpfsgui.service. All other configurations will be intact after the upgrade, and you can continue to perform data migration seamlessly as before.
To upgrade the client package, issue the following command:
```
rpm -Uvh gpfs.tct.client-1.1.2.1.rpm
```
To upgrade the Debian package, issue the following command:
```
sudo dpkg -i gpfs.tct.client*.deb
```
To verify the version after upgrade, issue the following command:
```
mmcloudgateway service version
```