Integrating new DM targets to LVM

Integrating new DM targets to LVM

[Gili B]

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hi
We are working on a new DM target which is similar to the ones in dm-thin but it adds SSD specific features.
I want to evaluate how complicated is it to integrate new targets to LVM.
 
Is there any guide/ documentation that explains what needs to be done?
 
Thanks
-gili 
 		 	   		  

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Re: Integrating new DM targets to LVM

[Zdenek Kabelac]

Dne 5.7.2015 v 15:05 Gili B napsal(a):
> hi
> We are working on a new DM target which is similar to the ones in dm-thin but
> it adds SSD specific features.
> I want to evaluate how complicated is it to integrate new targets to LVM.
>
> Is there any guide/ documentation that explains what needs to be done?
>


Hi

Would be probably much better to start with description of your new DM target.

Regards


Zdenek

Re: Integrating new DM targets to LVM

[Gili B]

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Thanks
We are working on a module that creates 2 target types :
X_pool , X_Volume
 
The pool linkes together a list of disks and enables allocating volumes.
The pool device doesnt enable io , it's size is 1 sector and its map method is basiclly 
like dm_zero.
 
The volume's map io, generates new ios to certain devices from the pool according to the
pool's logic.
 
The intention is to implement logic which is optimized for SSDs, but the pool will be able to work with
normal disks, except it's performance won't be that good.
 
Thanks
-gili
 
> To: dm-devel@redhat.com
> From: zkabelac@redhat.com
> Date: Mon, 6 Jul 2015 13:04:45 +0200
> Subject: Re: [dm-devel] Integrating new DM targets to LVM
> 
> Dne 5.7.2015 v 15:05 Gili B napsal(a):
> > hi
> > We are working on a new DM target which is similar to the ones in dm-thin but
> > it adds SSD specific features.
> > I want to evaluate how complicated is it to integrate new targets to LVM.
> >
> > Is there any guide/ documentation that explains what needs to be done?
> >
> 
> 
> Hi
> 
> Would be probably much better to start with description of your new DM target.
> 
> Regards
> 
> 
> Zdenek
> 
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
 		 	   		  

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