[sheepdog] effective storing backups and deduplication

[Vasiliy Tolstov]

2015-02-11 15:43 GMT+03:00 Liu Yuan <namei.unix at gmail.com>:
> This scheme can build on the sheepdog's current features:
>
> 0 use qemu-img (recommenced because better performance) or dog to read the base
>   vdi.
>
> 1 use dog to backup the delta data for different snapshots takben by
>   qemu-img snapshot or dog vdi snapshot.
>
> 2 manage the delta data and the base for the user defined snapshots relations
>   by the upper layer
>
> 3 use SD http storage to store the base and delta data.
>
> I guess you need something as the middle layer to map the user defined snapshots
> to sheepdog's base and delta data and implement gc in this middle layer.
> Authentication would be better implementated in this middleware.


Nice =)! So questions is:
0 - i need to run qemu-img snapshot sheepdog:base.img ?
1 - can you provide cmdline for dog to understand what i need

Big Thanks!

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru
jabber: vase at selfip.ru