[mythtv-users] HELP! I want my mythtv!

[Joseph DeGraw]

On 04/13/2014 05:39 AM, Simon Hobson wrote:
> Hika van den Hoven <hikavdh at gmail.com> wrote:
>
>> I had ones a fake failure on one of my raid1 arrays. Checking the
>> drive showed nothing and after re-adding it is still running for more
>> then a year.
> I have a system at work like that - an old Dell rackmount server with SCSI drives. Every now and then it'll spit it's dummy out and declare one or more drives as failed. Then I have the fun of forcing the arrays back together again and it'll run fine for ${random_long_period}.
>
>
>
> Joseph DeGraw <coffee412 at comcast.net> wrote:
>
>> But I got the new drive in and reconstructed a new raid and things are now running good.
> You're actually better off not using RAID for this application, both for performance and for resilience.
>
> Performance wise, you are better off with two separate drives. Add both into Myth and it will load-share between them.
> Resiliency wise, as you've found, a striped set will lose you all your data when any drive in the array fails. Keep them as separate drives and you only lose the data on that drive.
>
>> Well, I think the point that did apply to my situation is that when you have a failing raid that is not part of the actual operating system (i.e. its a data array only) the operating system should still be able to boot with a failed raid. Not being able to boot the operating system puts you in a bad situation in that you have to jump thru alot more hoops to get things fixed.
> It should be possible to fix it from the Busybox prompt - it'll just be harder to do. The point of dropping to the Busybox prompt is to give you at least some basic tools with which to fix the system - which is better than most other systems I've used which "just fail" and leave you with nothing (not fun when it's a system the whole company relies on !) From there, you should be able to mount your root volume (even if not as /) and get access to the various tools you need. Sometimes, speaking from experience, it's just a matter of fscking a filesystem that needs a little fixing more than the automatic flags will do at boot time.
>
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Good point. I didnt realize that. Storage groups are a good thing. Now I 
know why they are setup like they are.

Probably today I will break up the raid into separate disks.

My wife is pretty pissed at me right now. I lost all her soaps and LMN 
movies. :(

Not a good day for me!

Joseph