[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-kernel
Subject:    RE: Block Layer File/FS Replication?
From:       pavel-velo () bug ! ucw ! cz
Date:       2000-07-31 23:01:00
[Download RAW message or body]

Hi!

   >I've been tossing around the following Idea.
   >
   >1. Make every block update availabile via a pseudo-device, /dev/rep0 -
   >n.  Each minor in this case could represent an individual
   >(configurable) file system.
   >
   >2. Add an additional system call, which would update FS blocks based on
   >a parameter, which would contain the block data, inode, and an offset.
   >Proc file to start/stop replication.
   >
   >3. Lastly, write a user space network aware daemon to read from the
   >pseudo-device, and transfer block information to a (multiple) servers
   >running listeners.
   >
   >Granted, FS and block size would have to be the same on both ends, but
   >that's trivial.  I've also tossed around the idea of using raid 1over a
   >network block device, but I see visions of caching issues with that one
   >already.

why not just run raid1 over real disk and nbd?


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

[prev in list] [next in list] [prev in thread] [next in thread]