November 8, 20214 yr I've read the posted article on conversion of filesystem, but I'm still confused. Let me preface this by laying out my current setup: I have 8 total hard drives (8TB each), with two of those drives serving as parity drives. Three of the data drives are reiserfs filesystem, and three of the data drives are XFS filesystem. I recently purchased a number of 14TB hard drives and will be upgrading all 8 to 14TB drives. Right now one of the parity drives is being upgraded, but my question is what is the absolute easiest way to deal with upgrading the reiserfs 8TB drives to 14TB xfs drives? I was hoping it'd be a 1:1 upgrade, but it sounds like if I assign a 14TB in an existing 8TB reiserfs data drive spot, it will be rebuilt as an reiserfs drive instead of xfs filesystem. Can anyone lay out the simplest way to upgrade my 8TB drives to 14TB, ensuring that all the data drives are XFS?
November 8, 20214 yr Community Expert Changing the file system requires copying the data on a drive elsewhere; reformatting the drive to the new format (which erases any content content on the drive); and then (optionally) copy the data back.
November 8, 20214 yr Author 36 minutes ago, itimpi said: Changing the file system requires copying the data on a drive elsewhere; reformatting the drive to the new format (which erases any content content on the drive); and then (optionally) copy the data back. I have two parity drives, and have basically an identical system already to this as a 'backup'. Is there no way when assigning a new data drive to existing array slot to get it to format the drive to new fs, then have the array rebuild to new drive?
November 8, 20214 yr Community Expert 11 minutes ago, onelastpotato said: I have two parity drives, and have basically an identical system already to this as a 'backup'. Is there no way when assigning a new data drive to existing array slot to get it to format the drive to new fs, then have the array rebuild to new drive? Unfortunately not. the rebuild process can only restore the bit pattern on a drive (parity is not aware of what the bit pattern means) and thus cannot change its format. If you try reformatting the drive then Unraid treats this just like any other write and updates parity to reflect the format.
November 9, 20214 yr Author 54 minutes ago, itimpi said: Unfortunately not. the rebuild process can only restore the bit pattern on a drive (parity is not aware of what the bit pattern means) and thus cannot change its format. If you try reformatting the drive then Unraid treats this just like any other write and updates parity to reflect the format. Thank you for your help, I appreciate it.
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