I have a similar issue, one of the drives (Drive B 2TB WD Green Series) failed as the drive had to many bad blocks.
I bought a replacement which is 2TB WD Blue Series and tried to replace it. I followed everything as Debrick a MyBookLive DUO Guides 2/3 in WD forums described but MBL has still red color and I can't access the Dashboard cause I always get the loading bar saying disk is initializing.
If I place only the old working disk in case A, then I can access the dashboard .
If I place only the new drive in case A, then I get the loading bar again saying disk is initializing.
However I managed to connect through ssh, ran the commans for swap etc as described in guide and also took some stats.
Parted old disk
MyBookLiveDuo:~# parted /dev/sda
GNU Parted 2.2
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: ATA WDC WD20EZRZ-60Z (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
3 15.7MB 528MB 513MB linux-swap(v1) primary raid
1 528MB 2576MB 2048MB ext3 primary raid
2 2576MB 4624MB 2048MB ext3 primary raid
4 4624MB 2000GB 1996GB primary raid
Parted new disk
MyBookLiveDuo:~# parted /dev/sdb
GNU Parted 2.2
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: ATA WDC WD20EARX-00P (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
3 15.7MB 528MB 513MB linux-swap(v1) primary raid
1 528MB 2576MB 2048MB ext3 primary raid
2 2576MB 4624MB 2048MB ext3 primary raid
4 4624MB 2000GB 1996GB primary raid
MD stats
MyBookLiveDuo:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md3 : active linear sda4[0] sdb4[1]
3897995248 blocks super 1.0 0k rounding
md2 : active raid1 sda3[0] sdb3[1]
500672 blocks [2/2] [UU]
md0 : active raid1 sda22 sda13 sdb2[1] sdb1[0]
1999808 blocks [2/2] [UU]
unused devices:
Check swap
MyBookLiveDuo:~# MyBookLiveDuo:~# swapon -s
MyBookLiveDuo:~# Filename Type Size Used Priority
MyBookLiveDuo:~# /dev/md2 partition 500544 1664 -1
Any ideas?