I recently moved my drives to a new server and one of my disks is not mounting "Unmountable: Unsupported or no file system" I have attempted to xfs_repair -L /dev/md4p1 but all I get is 

 

Phase 1 - find and verify superblock...
bad primary superblock - bad magic number !!!

attempting to find secondary superblock... and then endless periods (......... etc)

Am I out of luck?

here are my diagnostics
alecstormz-diagnostics-20241105-1239.zip

I ran fdisk -l /dev/sdk
 

Disk /dev/sdk: 5.46 TiB, 6001175126016 bytes, 11721045168 sectors
Disk model: WDC WD6003FFBX-6
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: DFC2B7FF-66A4-4612-838E-DF3498F945C9

Device     Start         End     Sectors  Size Type
/dev/sdk1     64 11721045134 11721045071  5.5T Linux filesystem

and I ran blkid
 

/dev/sdd1: LABEL="easystore14" BLOCK_SIZE="512" UUID="BCE44B73E44B2F48" TYPE="ntfs" PARTLABEL="easystore" PARTUUID="08dec140-4c3d-40b9-bb67-55780231c5aa"
/dev/sdb1: LABEL="easystore12" BLOCK_SIZE="512" UUID="62DA13FCDA13CAE5" TYPE="ntfs" PARTLABEL="easystore" PARTUUID="29d3e6a5-5bfb-4303-95e7-c2ca993819c1"
/dev/sde1: LABEL="easystore18" BLOCK_SIZE="512" UUID="9094D9D194D9BA44" TYPE="ntfs" PARTLABEL="easystore" PARTUUID="9c53af12-0f47-46d5-8726-44acd7ed7cd3"
/dev/sdc1: LABEL="My_Passport" BLOCK_SIZE="512" UUID="F474B7AA74B76DCC" TYPE="ntfs" PARTUUID="98b2df82-01"
/dev/sda1: LABEL_FATBOOT="UNRAID" LABEL="UNRAID" UUID="2732-64F5" BLOCK_SIZE="512" TYPE="vfat"
/dev/loop1: TYPE="squashfs"
/dev/sdf1: UUID="a4075403-34b9-4c9d-a300-f5b52dfc81b5" UUID_SUB="ef79d78c-2793-4ae8-a6c3-e729c054b70a" BLOCK_SIZE="4096" TYPE="btrfs"
/dev/nvme0n1p1: UUID="a4075403-34b9-4c9d-a300-f5b52dfc81b5" UUID_SUB="a5157f58-37ae-46a9-93ad-a8fad727de0f" BLOCK_SIZE="4096" TYPE="btrfs"
/dev/sdi1: UUID="41345b43-42a1-43fe-adde-c6bbc0aebcb1" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="bcffc674-6b50-4d88-8532-7a908fe1ed45"
/dev/sdg1: UUID="fb92734c-0777-4d4b-bd41-f8cc9f40eb27" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="955a34c5-c8ca-4e78-90e3-0987f7a4489b"
/dev/loop0: TYPE="squashfs"
/dev/sdj1: UUID="2f1f49f0-da75-43fd-b4e6-4ed604ff534a" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="0486784c-f748-4394-900c-e3e8feb4f9d0"
/dev/sdh1: UUID="fce2b400-bda0-4fed-814a-b7f50a85a5d6" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="704d604a-f864-443f-98c5-f59270ea1ce3"
/dev/md2p1: UUID="fb92734c-0777-4d4b-bd41-f8cc9f40eb27" BLOCK_SIZE="512" TYPE="xfs"
/dev/md1p1: UUID="41345b43-42a1-43fe-adde-c6bbc0aebcb1" BLOCK_SIZE="512" TYPE="xfs"
/dev/md3p1: UUID="2f1f49f0-da75-43fd-b4e6-4ed604ff534a" BLOCK_SIZE="512" TYPE="xfs"
/dev/sdk1: PARTUUID="50a4ecc7-6c1f-4b83-ae4d-78b3ac040cb5"
/dev/loop2: UUID="51a4be1c-948f-4bb0-9c4a-68fb26850e99" UUID_SUB="dba694f8-5db4-46e7-8aa8-8621ef084775" BLOCK_SIZE="4096" TYPE="btrfs"
/dev/loop3: UUID="4e4da922-889e-449e-b64f-681514fe10f9" UUID_SUB="098e8ed9-bb30-4dd4-814e-ae2ea6adefb6" BLOCK_SIZE="4096" TYPE="btrfs"

Thank you for any assistance!

Edited November 5, 20241 yr by nicodog11
formatting

Was that disk previously connected to a RAID controller or USB enclosure?

It was previously connected to a Raid controller. I actually followed some of your other suggestions in previous threads and had to do data rebuilds on my other drives. My other 4 drives rebuilt no problem, just took about 8 hours a piece, but for some reason this one says active, normal operation and unmountable after the rebuild.

If parity is valid you can try to see if the disk can be emulated, if not, best bet may be using a file recovery app, like UFS explorer.

Thank you! Parity is valid. Are there any specific steps to emulate the disk? I ask because when I’ve had drives fail it emulates automatically.

You just stop the array, unassign the disk, start the array.