Markus G

It was odd, plex was flaking out so I rebooted and the drives failed to mount. I'm not sure what happened.

You are a legend! The pool has started. As you know, I must now remit my engineering degree to you. Thank you for your help.

Completed as instructed. I did find a btrfs signature on sdg and did write the partition. root@server:~# btrfs fi show Label: none uuid: af20d1aa-8c85-4763-bc7b-7e006bd5d28f Total devices 1 FS bytes used 360.00KiB devid 1 size 20.00GiB used 536.00MiB path /dev/loop2 Label: none uuid: 45b84021-bb40-449d-8611-1718beef11d8 Total devices 1 FS bytes used 412.00KiB devid 1 size 1.00GiB used 126.38MiB path /dev/loop3 Label: none uuid: 8ea836b8-5eef-434c-842b-38d7b512bf3f Total devices 2 FS bytes used 153.49GiB devid 3 size 931.51GiB used 157.03GiB path /dev/sdg1 devid 4 size 931.51GiB used 157.03GiB path /dev/sdf1

Do you want to remove the signature? [Y]es/[N]o: n /dev/sdf1 : 2048 1953525167 (931.5G) Linux /dev/sdf2: write New situation: Disklabel type: dos Disk identifier: 0x9652982f Device Boot Start End Sectors Size Id Type /dev/sdf1 2048 1953525167 1953523120 931.5G 83 Linux The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. root@server:~# btrfs fi show Label: none uuid: af20d1aa-8c85-4763-bc7b-7e006bd5d28f Total devices 1 FS bytes used 360.00KiB devid 1 size 20.00GiB used 536.00MiB path /dev/loop2 Label: none uuid: 45b84021-bb40-449d-8611-1718beef11d8 Total devices 1 FS bytes used 412.00KiB devid 1 size 1.00GiB used 126.38MiB path /dev/loop3 warning, device 3 is missing Label: none uuid: 8ea836b8-5eef-434c-842b-38d7b512bf3f Total devices 2 FS bytes used 153.49GiB devid 4 size 931.51GiB used 157.03GiB path /dev/sdf1 *** Some devices missing

root@server:~# sfdisk /dev/sdf Welcome to sfdisk (util-linux 2.38.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Checking that no-one is using this disk right now ... OK Disk /dev/sdf: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: WD Blue SA510 2. Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes sfdisk is going to create a new 'dos' disk label. Use 'label: <name>' before you define a first partition to override the default. Type 'help' to get more information. >>> 2048 Created a new DOS disklabel with disk identifier 0x9652982f. Created a new partition 1 of type 'Linux' and of size 931.5 GiB. Partition #1 contains a btrfs signature. Do you want to remove the signature? [Y]es/[N]o: I have not selected an option for the Y/N question.

I am not sure If it was configured as btrfs. root@server:~# blkid /dev/sda1: LABEL_FATBOOT="UNRAID" LABEL="UNRAID" UUID="70E8-E43D" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="e761811e-01" /dev/loop1: TYPE="squashfs" /dev/sdd1: UUID="7491c33f-9a47-4d86-a433-fefcb05460d1" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="3e0e5162-01b5-47fc-af19-f632aeb002c0" /dev/md2p1: UUID="6a042d73-4288-4ba5-a4bc-60fd80f0d90c" BLOCK_SIZE="512" TYPE="xfs" /dev/sdm1: UUID="1bbe4c36-6991-4bb0-b03f-66cbf2a070b9" BLOCK_SIZE="512" TYPE="xfs" /dev/sdb1: UUID="2d4ca56c-45a5-4bb0-901e-a2c096c99749" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="0ee027fb-3374-4b8a-a4aa-316d63236d20" /dev/md5p1: UUID="23b0cb58-8711-4c9b-aff3-faaa94ee862b" BLOCK_SIZE="4096" TYPE="xfs" /dev/sdk1: UUID="23b0cb58-8711-4c9b-aff3-faaa94ee862b" BLOCK_SIZE="4096" TYPE="xfs" PARTUUID="8c0247df-0ce8-45cc-a7be-f885d42df9e4" /dev/sdi1: UUID="bd9860f6-0012-4c23-babf-a6d6e0c87b1e" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="ead8dadf-665a-427d-8ee9-60f8cf4bc2fe" /dev/md1p1: UUID="2d4ca56c-45a5-4bb0-901e-a2c096c99749" BLOCK_SIZE="512" TYPE="xfs" /dev/md4p1: UUID="661713c1-2803-4a34-afaa-2af863d73d1e" BLOCK_SIZE="512" TYPE="xfs" /dev/loop0: TYPE="squashfs" /dev/sde1: UUID="661713c1-2803-4a34-afaa-2af863d73d1e" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="5ccf249c-997e-4b1a-9edd-080c652f8fb2" /dev/md7p1: UUID="1bbe4c36-6991-4bb0-b03f-66cbf2a070b9" BLOCK_SIZE="512" TYPE="xfs" /dev/sdc1: UUID="6a042d73-4288-4ba5-a4bc-60fd80f0d90c" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="7ed032ea-85a7-4979-8ff0-2d57f9080918" /dev/sdl1: UUID="d058bf79-5bfb-4caf-9a48-2c8e433c9e06" BLOCK_SIZE="4096" TYPE="xfs" PARTUUID="88fae84c-783b-4138-967b-1b1a9c0a8722" /dev/md3p1: UUID="7491c33f-9a47-4d86-a433-fefcb05460d1" BLOCK_SIZE="512" TYPE="xfs" /dev/md6p1: UUID="d058bf79-5bfb-4caf-9a48-2c8e433c9e06" BLOCK_SIZE="4096" TYPE="xfs" /dev/loop2: UUID="af20d1aa-8c85-4763-bc7b-7e006bd5d28f" UUID_SUB="6cb90d2c-09e2-482d-a55f-5c0f1532a256" BLOCK_SIZE="4096" TYPE="btrfs" /dev/loop3: UUID="45b84021-bb40-449d-8611-1718beef11d8" UUID_SUB="549d35e8-87f7-4dd8-a6c9-00e72c67c260" BLOCK_SIZE="4096" TYPE="btrfs" /dev/sdj1: PARTUUID="6c3e04a0-5dce-418e-ae74-47f362c3956f" root@server:~# fdisk -l /dev/sdf Disk /dev/sdf: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: WD Blue SA510 2. Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes

Thank you for the quick response. Label: none uuid: af20d1aa-8c85-4763-bc7b-7e006bd5d28f Total devices 1 FS bytes used 360.00KiB devid 1 size 20.00GiB used 536.00MiB path /dev/loop2 Label: none uuid: 45b84021-bb40-449d-8611-1718beef11d8 Total devices 1 FS bytes used 412.00KiB devid 1 size 1.00GiB used 126.38MiB path /dev/loop3

Hello, I have been searching for a solution for my problem for quite some time. My cache pool of two devices will not mount after reboot. The error listed is " Unmountable: Unsupported or no file system". I have tried to run "mount -o rescue=all,ro /dev/sdg1 /temp" with the error given as: "mount: /temp: special device /dev/sdg1 does not exist" If anyone would be able to help me figure out what may be the issue I would appreciate it. tower-diagnostics-20240516-1451.zip