PowerShell Core can be installed on many operating systems and can have the PureStorage.FlashArray.Backup PowerShell module installed. Command initiated from PowerShell Core will open a remote session through SSH to the specified 'ComputerAddress' which will need to be configured with SSH to receive such a connection.
Note:
When performing installations, make sure that you are using an administrator PowerShell session. If you get an error about computer credentials, ensure a remote PowerShell session can be opened with the computer credential. One method is to bind a credential to a secure variable. Here is an example:
$compcred = Get-Credential
New-PSSession -Credential $compcred