ReadyNAS Ultra 6 Plus No volume after replacing failed drive

Thanks for the updates on those commands and your assistance so far. I was able to go through those commands, but still /dev/md2 is not active.

Output from running "start_raid.sh":

# start_raid.sh
mdadm: /dev/md/0 has been started with 6 drives.
mdadm: /dev/md/1 has been started with 6 drives.
mdadm: failed to RUN_ARRAY /dev/md/2: Input/output error
mdadm: failed to RUN_ARRAY /dev/md/2: Input/output error

After running the mount and chroot commands then the vgscan and vgchange output is:

# vgscan
  Reading all physical volumes.  This may take a while...
  No volume groups found

# vgchange -a y
  No volume groups found

The output of the last mount command using /dev/c/c is:

# mount -o ro /dev/c/c /c
mount: special device /dev/c/c does not exist

Some interesting side notes:

 Running "mdadm --detail --scan" lists information for /dev/md/0 and /dev/md/1.  Output is below.

# mdadm --detail --scan
ARRAY /dev/md/0 metadata=1.2 name=001F33EAFC49:0 UUID=cb2a9985:1d9f0cff:5775d31f:ef046e9e
ARRAY /dev/md/1 metadata=1.2 name=001F33EAFC49:1 UUID=22ca41b6:f04989b8:5e85faa3:cc9ad2e4

Then running "mdadm --assemble --scan" gives similar information as I noted earlier that showed that md2 was rebuilding.  See output below.

# mdadm --assemble --scan
mdadm: /dev/md/001F33EAFC49:2 assembled from 5 drives and  1 rebuilding - not enough to start the array while not clean - consider --force.
mdadm: No arrays found in config file or automatically

Running "mdadm --examine on /dev/sd[a-f], which should be the devices for /dev/md2, shows that each one's state is "Active" and the array state is "AAAAAA".

Short of using the "--force" option. which concerns me, with the command "mdadm --assemble /dev/md2 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3 /dev/sde3 /dev/sdf3" or the command "mdadm --assemble --scan", is there any other way to try to get the rebuild to complete?  Is there any problem with using the "--force" option?

Based on my experience, I believe that the volume group name for md2 is "c" and the logical volume name is "c", also.  Am I correct?

If I am unable to get the rebuild to complete, I'm thinking about acquiring a Terramaster D6-320 SATA enclosure and probably the Stellar Data Recovery Technician software to try to recover the data.

Thanks again for your assistance.