(SOLVED) Data disk shows as Unmountable not mounted after physical swap of Parity drive

November 29, 20214 yr

Hi All;

I just upgraded my Parity Drive from an 8TB to 10TB disk.

Saved a backup of my config prior to swap
Went to Main tab of Web GUI and did a shutdown of system.
Physically swapped out 8TB Parity drive and replaced with new 10TB drive
Powered on machine
1. Changed Parity Drive to None
2. Started Array - normal mode not Maintenance mode
3. Stopped Array
4. Updated Parity Drive info to point at new physical disk
5. Started Array - normal mode not Maintenance mode
Parity sync / data rebuild started
Numerous instances of drives overheating so paused / resumed Parity sync / data rebuild multiple times (took 3 days)
Noted that one data disk showed as Unmountable: Not mounted
Upon completion of parity sync / data rebuild --> went to disk 1 page and ran Check with -n option - stupidly did not save output
Ran Check with no options and got a long string of data (attached)
Ran Check again with -n option and got a short report

I don't understand what the check did/did not do so I need some guidance.

Have attached:

Output from Check command
Diagnostics file produced after attempt to use Check to fix drive (previously stated I was a doofus and did not copy initial Check output)
Supplementary data:
1. screen snip of notifications from startup after swapping physical parity drive during parity rebuild - (I cleared all the ones about disks getting hot and returning to normal temperature).
2. Notification messages:
3. List of installed Docker Containers
4. List of installed plugins (2)

System Info

Version: UNRAID 6.9.2

MOTHERBOARD

ASRock B550M Pro4
American Megatrends International, LLC., Version P2.20
BIOS dated: Tue 03 Aug 2021 12:00:00 AM EDT

Processor

AMD Ryzen 5 5600G with Radeon Graphics @ 3900 MHz

MEMORY
16 GiB DDR4 Utilization: 12%
Maximum size: 128 GiB

RAM 12%

Flash 5%

Usable size: 15.0 GiB

Log 1%

Docker 15%