Loading Profile...
Wuala RAID integration
I Love, Wuala! it's great and only going to get better.
Because it's so great I'm planning on using it for storing a large amount of files. I know that Wuala currently has a 100gb per computer limit, but another post said this might be raised.
My question is, have you considered any kind of RAID integration? particularly for linux servers, traditional RAID5 redundancy seems well, redundant with given Wuala's built in error correcting codes.
Because it's so great I'm planning on using it for storing a large amount of files. I know that Wuala currently has a 100gb per computer limit, but another post said this might be raised.
My question is, have you considered any kind of RAID integration? particularly for linux servers, traditional RAID5 redundancy seems well, redundant with given Wuala's built in error correcting codes.
2
people have this question
I have this question, too!
Tell me when someone answers.
The more people who ask this question, the more it gets noticed.
The more people who ask this question, the more it gets noticed.
Get Satisfaction loves Zappos because they care about customer service.
-
Inappropriate?Wuala has built in error correcting codes?1 Comment
Add a comment
This answers the question
-
Maybe he is referring to the whole maintenance aspect of Wuala where it makes sure the redundancy is sufficient.... just a guess. -
Inappropriate?Wuala uses Forward error correction (See http://en.wikipedia.org/wiki/Forward_...). This reduces the necessary redundancy from about 24 times to about 5 times, IIRC.
RAID does something similar, but is simpler. I can't imagine how one would go about integrating it with Wuala. Could you elaborate your idea? -
Inappropriate?Sure, sorry for not being more clear.
If you watch wuala's tech talk: http://www.google.com/url?sa=t&ct=res...
You learn that wuala derives a number of file chunks that all together add up to be about 5x the file size, but using error correcting codes you can take any of these that add up to the original file size and rebuild the file.
My idea, is for Wuala to store more than to total file size on your computer, but across multiple drives, in the same way that RAID functions, in essence bringing the RAID functionality to the Wuala level. I think this might be helpful since it allows wuala to intelligently manage the risks associated with drive failure, in combination with it's online backup strategy.
Then again, why reinvent the wheel? Anyone have any thoughts? -
Inappropriate?So you are asking for Wuala to basically simulate a RAID-drive for keeping its local data safe?
To be honest, I don't see what good that could do. Files are spread throughout the network, so when one drive fails, enough chunks will still be available in the network to successfully reconstruct the files.
Wuala generally tries not to put too many chunks of the same file onto the same machine, so if one drive goes up in smoke it won't irreparably damage the corresponding files. The data on that failed hard drive can be replaced by simply generating new chunks from the original file.
Moreover, you'd need at least twice the amount of disk space locally -- it would probably be more efficient to just contribute that much more space to the network, and let the existing error-correction mechanism do its work -- after all, disk failures happen relatively seldom. -
Inappropriate?The reason i would not implement such redundancy is because it is more "cost" effective to not do it as this would not increase reliability by nearly anything. I have never heard of problems from data corruption on wuala, the big problem is enough computers with the data being online.
-
Inappropriate?Although I would like to add. I am glad people are thinking about the technology and ways that may be able to improve it.
I’m happy
EMPLOYEE
