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Is there a filesystem that keep track of all filesystem modification without snapshot? [duplicate]

Linux File Versioning?How does Linux keep track of filesystems?How to keep track of changes in /etc/LVM Snapshot without copy-on-writeIs btrfs suitable as backup filesystem?Moving Application Configurations to Separate Partitiontaking snapshots of a BTRFS volume mounted with nodatacow?BTRFS issue - disappearing/reappearing contents? Two independent versions of filesystem depending on mounted subvolumeCentOS fs (or folder) snapshot without LVMManually synchronizing two BTRFS snapshots with RSYNCBackup: How to mirror/clone LVM LVs (or VGs) on demand?

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This question already has an answer here:

• 
  Linux File Versioning?
  
  3 answers
  
  

I am interested in btrfs and I start understanding and loving it COW process.

But what I understand is that I need to do snapshots to keep track of all modifications done on file. What happen when there are multiples modifications between 2 snapshots? I guess I just have the last state at snapshot time.

Is there a way with btrfs or another filesystem to keep track of all modifications on files (including moving files)? IIRC DEC had such features keeping all files backups with ~ extension then ~~ then ~~~ and so on.

filesystems backup

share|improve this question

edited May 20 at 1:31

dominix

asked May 19 at 21:07

dominixdominix

97110

marked as duplicate by Gilles filesystems
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  i am not talking about file versioning, but how to avoid snapshot. file versioning was just an example.
  
  – dominix
  May 20 at 1:31
  
  

  
  
  
  

add a comment | 

2

This question already has an answer here:

• 
  Linux File Versioning?
  
  3 answers
  
  

I am interested in btrfs and I start understanding and loving it COW process.

But what I understand is that I need to do snapshots to keep track of all modifications done on file. What happen when there are multiples modifications between 2 snapshots? I guess I just have the last state at snapshot time.

Is there a way with btrfs or another filesystem to keep track of all modifications on files (including moving files)? IIRC DEC had such features keeping all files backups with ~ extension then ~~ then ~~~ and so on.

filesystems backup

share|improve this question

edited May 20 at 1:31

dominix

asked May 19 at 21:07

dominixdominix

97110

marked as duplicate by Gilles filesystems
Users with the  filesystems badge can single-handedly close filesystems questions as duplicates and reopen them as needed.

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May 19 at 22:52

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i am not talking about file versioning, but how to avoid snapshot. file versioning was just an example.
  
  – dominix
  May 20 at 1:31
  
  

  
  
  
  

add a comment | 

This question already has an answer here:

• 
  Linux File Versioning?
  
  3 answers
  
  

I am interested in btrfs and I start understanding and loving it COW process.

But what I understand is that I need to do snapshots to keep track of all modifications done on file. What happen when there are multiples modifications between 2 snapshots? I guess I just have the last state at snapshot time.

Is there a way with btrfs or another filesystem to keep track of all modifications on files (including moving files)? IIRC DEC had such features keeping all files backups with ~ extension then ~~ then ~~~ and so on.

filesystems backup

share|improve this question

edited May 20 at 1:31

dominix

asked May 19 at 21:07

dominixdominix

97110

share|improve this question

edited May 20 at 1:31

dominix

asked May 19 at 21:07

dominixdominix

97110

share|improve this question

edited May 20 at 1:31

dominix

asked May 19 at 21:07

dominixdominix

97110

asked May 19 at 21:07

dominixdominix

97110

asked May 19 at 21:07

dominixdominix

97110

1 Answer
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5

Log-structured file systems provide this, albeit not in the same way as VMS. You can think of them as a circular buffer, remembering previous versions as long as there’s room for them.

On Linux, one such file system is NILFS2; it provides continuous snapshots, and user-configurable garbage collection. The latter means that when a volume fills up, the user can configure which snapshots are deleted — so you could have many recent snapshots, and less frequent snapshots as you go back into the past, instead of the more obvious “delete the oldest snapshots” one might expect from a circular buffer.

share|improve this answer

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

add a comment | 

5

Log-structured file systems provide this, albeit not in the same way as VMS. You can think of them as a circular buffer, remembering previous versions as long as there’s room for them.

On Linux, one such file system is NILFS2; it provides continuous snapshots, and user-configurable garbage collection. The latter means that when a volume fills up, the user can configure which snapshots are deleted — so you could have many recent snapshots, and less frequent snapshots as you go back into the past, instead of the more obvious “delete the oldest snapshots” one might expect from a circular buffer.

share|improve this answer

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

add a comment | 

5

Log-structured file systems provide this, albeit not in the same way as VMS. You can think of them as a circular buffer, remembering previous versions as long as there’s room for them.

On Linux, one such file system is NILFS2; it provides continuous snapshots, and user-configurable garbage collection. The latter means that when a volume fills up, the user can configure which snapshots are deleted — so you could have many recent snapshots, and less frequent snapshots as you go back into the past, instead of the more obvious “delete the oldest snapshots” one might expect from a circular buffer.

share|improve this answer

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

add a comment | 

Log-structured file systems provide this, albeit not in the same way as VMS. You can think of them as a circular buffer, remembering previous versions as long as there’s room for them.

On Linux, one such file system is NILFS2; it provides continuous snapshots, and user-configurable garbage collection. The latter means that when a volume fills up, the user can configure which snapshots are deleted — so you could have many recent snapshots, and less frequent snapshots as you go back into the past, instead of the more obvious “delete the oldest snapshots” one might expect from a circular buffer.

share|improve this answer

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

share|improve this answer

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517

answered May 19 at 21:15

Stephen KittStephen Kitt

188k26438517