Re: [RFC PATCH] Detail: don't display the raid level when it's inactive

[Zhong Lidong <lidong.zhong@suse.com>]

On 9/1/20 3:00 AM, Nix wrote:
> On 31 Aug 2020, Zhong Lidong told this:
> 
>> On 8/29/20 12:38 AM, Ian Pilcher wrote:
>>> On 8/26/20 10:16 AM, Lidong Zhong wrote:
>>>> ...
>>>> So the misleading "raid0" is shown in this testcase. I think maybe
>>>> the "Raid Level" item shouldn't be displayed any more for the inactive
>>>> array.
>>>
>>> As a system administrator, I'd much rather see "unknown" (or something
>>> similar), rather than simply omitting the information.
>>>
>> Thanks for the suggestion.
>> Yeah, just removing the Raid Level info is not the best option. I also
>> considered to show it as "inactive Raid1" in such case.
> 
> If it would be a raid1 when activated, it is still a raid1 when
> inactive: the data on disk doesn't suddenly become not a raid array
> simply because the kernel isn't able to access it right now. This is
> valuable information to expose to the sysadmin and should not be
> concealed (and *certainly* not described as a raid level it actually
> isn't).
> 
> I think it should say as much (if the system knows at this stage, which
> if there is a device node, it presumably does).
> 

Makes sense to me. I'll try to rewrite the patch.
Thanks for your share.

Regards,
Lidong