[ClusterLabs] question about linear & raid0 array types in RA mdraid

[heming.zhao at suse.com]

Hello List,

In RA mdraid, linear and raid0 treat as clustered types.

```
is_clustered_raid() {
     array_is_clustered_raid || array_is_linear_or_raid0
}
```

can I ask a question: what scenarios apply the type of linear or raid0 ?

Thanks
Heming