Setting to put only duplicated files on a disk?

[blueman2]

I looked at  the file placement options in 2.X.  However, I do not see a way to do something I really want.  That is to allow only duplicated files to be put on a certain disk.  The reason is that the disk is rather slow and old, and has more reallocated sectors that I would typically like to use for primary copies of files.  But as a drive for duplicated files, it would still be useful.  The read striping would help with the speed issue, and worst case if the drive does fail, it will not cause loss of data. 

 

Is there a way to do this?  

[Christopher (Drashna)]

Absolutely.

 

There are a couple of ways.... 

 

The way you may want, is the "Disk Usage Limiter". You can specify that duplicated or unduplicated data goes on the disk.

 

The other way, is to use the StableBit Scanner balancer to move unduplicated off the drive in the case of SMART warnings. This option is disabled by default, but I personally use it.

 

Regards

[blueman2]

Very cool!  I just found the Disk Usage Limiter under Pool Options - Balancing - Balancers.  That is exactly what I wanted.

 

Thanks!!!

[Christopher (Drashna)]

Glad to hear it! 

 

And definitely take a look that Balancer and the StableBit Scanner balancer (if you have it installed). There are some good options there.