July 22, 20241 yr I have a two-parity drive system that contains Western Digital ST12000NM0127 Drives (12 TB). I have a failed drive that is a Toshiba 3TB drive. I'm replacing it with another Western Digital ST12000NM0127 Drive (12TB). I shut down the array, turned of the server. Replaced the drive, and started it back up. When I go to replace Disk1 (which is missing now), I see the new drive. But I get the error: "Disk in Parity slot is not the biggest". Not sure where to go next..... swissarmy-diagnostics-20240722-1312.zip
July 22, 20241 yr Community Expert It does look like the new disk is slightly larger, post the output of fdisk -l /dev/sdX for the new disk and both parity drives
July 22, 20241 yr Author /dev/sdc = new drive /dev/sdf = 1st parity drive /dev/sdg = 2nd parity drive root@swissarmy:~# fdisk -l /dev/sdc Disk /dev/sdc: 10.92 TiB, 12001339219968 bytes, 23440115664 sectors Disk model: ST12000NM0127 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes root@swissarmy:~# root@swissarmy:~# root@swissarmy:~# fdisk -l /dev/sdf Disk /dev/sdf: 10.91 TiB, 12000138625024 bytes, 23437770752 sectors Disk model: ST12000NM0127 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: CACBBE2B-BBCA-4E51-B450-06A31CE2595A Device Start End Sectors Size Type /dev/sdf1 64 23437770718 23437770655 10.9T Linux filesystem root@swissarmy:~# fdisk -l /dev/sdg Disk /dev/sdg: 10.91 TiB, 12000138625024 bytes, 23437770752 sectors Disk model: ST12000NM0127 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: BA5F0623-3045-41C4-B5F7-820D1431CB13 Device Start End Sectors Size Type /dev/sdg1 64 23437770718 23437770655 10.9T Linux filesystem root@swissarmy:~#
July 23, 20241 yr Community Expert Solution 7 hours ago, Rich Minear said: Disk /dev/sdc: 10.92 TiB, 12001339219968 bytes, 23440115664 sectors 7 hours ago, Rich Minear said: Disk /dev/sdf: 10.91 TiB, 12000138625024 bytes, 23437770752 sectors That confirm the new disk is larger, this is uncommon, any of the drives came from USB enclosures? Solution is to do a parity swap.
July 24, 20241 yr Author That was what I thought might need to happen, but wasn't sure. First time running across this. And it worked like a charm. Since I had a Dual Parity system, I was able to swap out one of the parity drives and it ran for about 24 hours. Then I was able to take the old parity drive and use it as the new data drive. Thanks for the excellent help!!! rm
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