Description

When trying to load IO class 0 with name different then 'unclassified', casadm displays a non-descriptive error.

Expected Behavior

Something similar to the situation below.
Loaded config:

IO class id,IO class name,Eviction priority,Allocation
s,file_size:le:97507568,255,0

Output from loading config:
Cannot parse configuration file - error in line 2 in column 1 (IO class id).

Actual Behavior

Loaded config:

IO class id,IO class name,Eviction priority,Allocation
0,file_size:le:97507568,255,0

Output from loading config:
Invalid input parameter

Steps to Reproduce

1. Load IO class config listed in Actual Behavior

Your Environment

• OpenCAS version (commit hash or tag): 21.03.0.0492.master