[dm-devel] Guide stacking device mappers

[Akira Hayakawa]

Hi Jonas,

I am developing dm-writeboost. Thank you for your interest.

I couldn't understand how you try to stack devices.
You should share diagram if you want others to know your idea precisely.

But this may help you. dm-writeboost can't use zram as the caching device.
I thought this is device-mapper's issue so you may confront this when you try the stacking.
https://github.com/akiradeveloper/dm-writeboost/issues/60

Akira

On 2017/08/03 6:00, Jonas wrote:
> 
> Hi
> 
> I want to write data to dm-dedup device, store that on a zram w lz4 compressed. Then dm-mirror the zram to dm-writeboost that have a Ssd as block device/final destination.
> 
> Is there any guide w examples on how to stack device mappers? Or anyone having instructions or guidlines on how to do?
> 
> /J
> 
> 
> 
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