April 13, 201214 yr I have a 2TB drive that looks like it may be failing. I just received an RMAed 1.5TB drive from seagate. The 2TB has about 700GB free on it. So that would mean only about 1.2-1.4TB are used
April 13, 201214 yr I have a 2TB drive that looks like it may be failing. I just received an RMAed 1.5TB drive from seagate. The 2TB has about 700GB free on it. So that would mean only about 1.2-1.4TB are used quick answer, NO, the replacement must be as big, or bigger, but not bigger than the parity drive. more complete answer, it can be bigger than the parity drive, but you must use a specific procedure to install the new disk as parity in a parity-swap process. still another way... If you have room on other drives for the 800GB of files on the drive you want to replace, you can move the files to OTHER drives, then stop the array,remove the drive you intend to replace, set a new disk configuration with it removed from the array, (that immediately invalidates parity) then start the array, let it completely rebuild parity based on the new configuration with one fewer disk, then lastly, stop the array and add the new 1.5TB disk as if it was a new disk. (pre-clear it before adding, otherwise you'll be waiting while unRAID clears it for you)
April 13, 201214 yr Author Joe, The disk in question is not my parity drive. It is a data drive. So if I understand correctly. I can.... 1. Preclear 1.5TB Disk from Seagate 2. Stop Array 3. Remove questionable 2TB disk 4. Install 1.5TB Disk 5. Start Array 6. Run initconfig from putty 7. Allow Disks to rebuild will this work?
April 13, 201214 yr No. This is one way: 1. pre-clear 1.5T drive and add to the array. 2. Copy all data from 2T drive to 1.5T drive. 3. Remove 2T drive from system. 4. Run initconfig and let parity rebuild.
April 13, 201214 yr Joe, The disk in question is not my parity drive. It is a data drive. So if I understand correctly. I can.... 1. Preclear 1.5TB Disk from Seagate 2. Stop Array 3. Remove questionable 2TB disk 4. Install 1.5TB Disk 5. Start Array 6. Run initconfig from putty 7. Allow Disks to rebuild will this work? If you follow that procedure you would LOSE all the existing data on the questionable 2TB disk. Running initconfig immediately invalidates parity, preventing any data re-construction onto the replacement disk. Your steps would rebuild parity with the empty contents of the pre-cleared disk and the questionable disk's contents would be lost. The only way your steps would work is if you copied the contents of the questionable disk elsewhere BEFORE you did any of the steps listed.
April 13, 201214 yr If the the 2T is not readable you can do the following: 1. pre-clear 1.5T drive and add to the array. 2. Remove 2T drive from system. 3. Start the array with the 2T drive missing. 4. Copy data from the simulated 2T drive. 4. Run initconfig and let parity rebuild.
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