Question about "btrfs send/receive"

Question about "btrfs send/receive"

[Cao jin]

Hi all,
     I am considering implement the btrfs send/receive command in 
libguestfs(http://libguestfs.org/), and found that incremental send 
seems pretty complicated. So my questions is:
1. What is the most usually usage of btrfs send/receive?
2. Does it make sense to implement the simplest form?
      $ btrfs send -f sent_file subvol

Could anyone give a introduction and suggestions?
Thanks in advance

-- 
Yours Sincerely,

Cao Jin
--
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Re: Question about "btrfs send/receive"

[Marc MERLIN]

On Tue, Jun 23, 2015 at 03:15:23PM +0800, Cao jin wrote:
> Hi all,
>     I am considering implement the btrfs send/receive command in 
> libguestfs(http://libguestfs.org/), and found that incremental send 
> seems pretty complicated. So my questions is:
> 1. What is the most usually usage of btrfs send/receive?
> 2. Does it make sense to implement the simplest form?
>      $ btrfs send -f sent_file subvol

Sure, have a look at this:
http://marc.merlins.org/perso/btrfs/2014-03.html#Btrfs-Tips_-Doing-Fast-Incremental-Backups-With-Btrfs-Send-and-Receive

Cheers,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  

Re: Question about "btrfs send/receive"

[Cao jin]

Hi Marc,
     I can`t access /perso/btrfs/2014-03.html on that server. But I 
guess it has similar content as 
https://btrfs.wiki.kernel.org/index.php/Incremental_Backup ?
     If so, I am afraid incremental backup not suitable for a API 
implementation in libguestfs.
     Is the simplest form a usual condition people will use for 
subvolume backup? Is the simplest form make sense in daily life?

在 2015年06月24日 11:24, Marc MERLIN 写道:
> On Tue, Jun 23, 2015 at 03:15:23PM +0800, Cao jin wrote:
>> Hi all,
>>      I am considering implement the btrfs send/receive command in
>> libguestfs(http://libguestfs.org/), and found that incremental send
>> seems pretty complicated. So my questions is:
>> 1. What is the most usually usage of btrfs send/receive?
>> 2. Does it make sense to implement the simplest form?
>>       $ btrfs send -f sent_file subvol
>
> Sure, have a look at this:
> http://marc.merlins.org/perso/btrfs/2014-03.html#Btrfs-Tips_-Doing-Fast-Incremental-Backups-With-Btrfs-Send-and-Receive
>
> Cheers,
> Marc
>

-- 
Yours Sincerely,

Cao Jin

Re: Question about "btrfs send/receive"

[Marc MERLIN]

On Wed, Jun 24, 2015 at 11:40:21AM +0800, Cao jin wrote:
> Hi Marc,
>     I can`t access /perso/btrfs/2014-03.html on that server. But I
> guess it has similar content as
> https://btrfs.wiki.kernel.org/index.php/Incremental_Backup ?
>     If so, I am afraid incremental backup not suitable for a API
> implementation in libguestfs.
>     Is the simplest form a usual condition people will use for
> subvolume backup? Is the simplest form make sense in daily life?
 
Argh, you're probably trying to connect from China. If so, my apologies,
after repeated abuse and attacks from too many Chinese netblocks and
netblocks owners who never replied to any Email or did anything to
address the issues reported, I was forced to block all of China.

You'll find a copy here:
https://web.archive.org/web/20150619002831/http://marc.merlins.org/perso/btrfs/2014-03.html
Scroll down to 	2014/03/22

Cheers,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901