rt_layton Posted November 21, 2022 Share Posted November 21, 2022 I had an array of six 8TB drives with two of them parity drives. I needed some more drives for another project so i got three 16 TB drives and planned on swapping them for the 8 TB drives. I swapped out the parity drive and rebuilt the array then did the same for Parity 2 with no issues. Now when i try and add(or replace) the last 16 TB drive to the array it says i cant start the array because "Disk in parity slot is not biggest." All three of these 16 TB drives are the same model and the exact same size. I tried to pre-clear the drive before adding and that didn't help either. I have attach the diagnostics zip. Any help would be greatly appreciated. nas-diagnostics-20221120-1924.zip Quote Link to comment
JorgeB Posted November 21, 2022 Share Posted November 21, 2022 Most likely parity has the partition starting on sector 2048, parity2 looks OK, but post the output of fdisk -l /dev/sdX for both. Quote Link to comment
rt_layton Posted November 23, 2022 Author Share Posted November 23, 2022 Yup you are correct. I did use the parity drive before i added it and did not pre-clear it. parity (sdj) root@NAS:~# fdisk -l /dev/sdj Disk /dev/sdj: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors Disk model: ST16000NE000-2RW Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 969E3CEE-0602-3C4B-8C24-CCB4AF681B02 Device Start End Sectors Size Type /dev/sdj1 2048 31251759070 31251757023 14.6T Linux filesystem Parity 2 (sdk) root@NAS:~# fdisk -l /dev/sdk Disk /dev/sdk: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors Disk model: ST16000NE000-2RW Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 0373AE92-FB71-44E1-84F2-5740B340029F Device Start End Sectors Size Type /dev/sdk1 64 31251759070 31251759007 14.6T Linux filesystem drive I'm trying to add (sdd) root@NAS:~# fdisk -l /dev/sdd Disk /dev/sdd: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors Disk model: ST16000NE000-2RW Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0x00000000 Device Boot Start End Sectors Size Id Type /dev/sdd1 1 4294967295 4294967295 2T 0 Empty Partition 1 does not start on physical sector boundary. So it looks like I need to take this new drive and make it the Parity drive. correct? Quote Link to comment
Solution JorgeB Posted November 23, 2022 Solution Share Posted November 23, 2022 You can just stop the array, unassign parity, start array, stop array, re-assign parity, click on parity and chose the "erase" option, then re-sync parity. Quote Link to comment
rt_layton Posted November 23, 2022 Author Share Posted November 23, 2022 Thank you very much for your help 1 Quote Link to comment
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