Right now I have 3 x 3tb drives configured in a MerfgerFS pool. I also have 1 x 2tb drive set aside. If I understand correctly I cannot use the 2tb for a parity drive?
I was hoping to setup Snapraid in conjunction with mergerfs, but was trying to avoid purchasing another drive at this point... Are there any options to use the 2tb? Or do I just need to bite the bullet and purchase another drive of 3tb+ for parity? I suppose if I went that route the 2tb would be added to the pool.
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Yes, you must have the parity drive the same size as your largest drive. The only way around it is to use two drives as parity drives and use the new multi parity drive feature SnapRAID now has...but then you will need at least one more drive of 1TB size.
Having the parity drive larger than the rest is fine, but smaller is not allowed.
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Are the 3x3TB drives filled to the brim? If not you could just copy the data from one 3TB drive to the 2TB drive and use that 3TB drive for parity. Then re-merge the 2x3TB+1x2TB drives with MergerFS or any other unity file system (http://www.snapraid.it/faq#enc). SnapRAID even has a rudimentary pooling feature (read only) itself (http://www.snapraid.it/manual#4.2).
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Right now I have 3 x 3tb drives configured in a MerfgerFS pool. I also have 1 x 2tb drive set aside. If I understand correctly I cannot use the 2tb for a parity drive?
I was hoping to setup Snapraid in conjunction with mergerfs, but was trying to avoid purchasing another drive at this point... Are there any options to use the 2tb? Or do I just need to bite the bullet and purchase another drive of 3tb+ for parity? I suppose if I went that route the 2tb would be added to the pool.
Yes, you must have the parity drive the same size as your largest drive. The only way around it is to use two drives as parity drives and use the new multi parity drive feature SnapRAID now has...but then you will need at least one more drive of 1TB size.
Having the parity drive larger than the rest is fine, but smaller is not allowed.
Are the 3x3TB drives filled to the brim? If not you could just copy the data from one 3TB drive to the 2TB drive and use that 3TB drive for parity. Then re-merge the 2x3TB+1x2TB drives with MergerFS or any other unity file system (http://www.snapraid.it/faq#enc). SnapRAID even has a rudimentary pooling feature (read only) itself (http://www.snapraid.it/manual#4.2).
They are all pretty well full. I guess I will be buying another drive...