May 8, 20179 yr I have the following 6tb parity Disk 1= 2tb Disk 2= 2tb Disk 3= 1tb I have purchased a 6tb drive to replace disk 1,2 and 3. Whats the best way to do this please.
May 8, 20179 yr Community Expert Preclear new drive to test it. Replace the fullest 2TB drive with the new drive and let it rebuild. Copy other disks files to new drive. Set New Config without the small drives and let parity rebuild.
May 8, 20179 yr If you anticipate needing more storage than 6TB in future, you could add the 6TB as another drive in your array (after preclearing) and copy from each 2TB drive using rsync, or your choice of other method. You could use rsync -av --progress --remove-source-files /mnt/disk[1-3]/* to /mnt/disk4 to move everything in sequence to disk4. This way your parity is always maintained during the move operation. You can eliminate your 2TB drives from your array after the moving is done without losing parity, if that concerns you; Check https://lime-technology.com/wiki/index.php/Shrink_array for details. When I replace a good drive with a larger one I only erase the smaller drive after the rebuild has been successful. As each drive is its own intact mountable volume in linux you can keep the 2TB drives as backup as long as you need (provided you DO NOT use the --remove-source-files switch I mentioned above, of course).
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