MyCloud EX4100 - Volume_2 with no Volume_1 - Cloud Access Disabled

Greetings all,

I have a MyCloudEX4100. I recently replaced drives and expanded to raid 5 across 4 drives, but everything ended up on Volume_2. I have no Volume_1 & no free drive bays to add a Volume_1. This is preventing me from enabling cloud access and likely preventing my Plex server from operating properly. I saw that user kinge504 had a similar problem and a WD tech was able to fix his problem quickly and easily using SSH over a remote connection. Does anybody know exactly how to fix this problem through SSH like the WD tech did for him? I am proficient enough in Linux to follow directions & type commands into my SSH client, but I am not familiar enough with the tools used to figure it out & fix it on my own without risking breaking things worse. I believe that part of the problem may be that my raid is mounted at HD_b2 instead of HD_a2. If it is helpful, my outputs from cat /proc/mdstat and mount are below.

root@WDMyCloudEX4100 HD_b2 # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md1 : active raid5 sdc2[0] sdb2[2] sda2[3] sdd2[1]
46865049024 blocks super 1.0 level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
bitmap: 2/15 pages [64KB], 65536KB chunk

md0 : active raid1 sda1[3] sdb1[2] sdd1[1] sdc1[0]
2094080 blocks super 1.2 [4/4] [UUUU]
bitmap: 0/1 pages [0KB], 65536KB chunk

root@WDMyCloudEX4100 HD_b2 # mount
/dev/ram0 on / type ext4 (rw,relatime,block_validity,delalloc,barrier,user_xattr,acl)
devtmpfs on /dev type devtmpfs (rw,relatime,size=1040256k,nr_inodes=24057,mode=755)
sysfs on /sys type sysfs (rw,relatime)
mdev on /dev type tmpfs (rw,relatime)
proc on /proc type proc (rw,relatime)
cgroup on /sys/fs/cgroup type cgroup (rw,relatime,cpu,memory)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
ubi0:config on /usr/local/config type ubifs (rw,relatime,ubi=0,vol=0)
squash on /usr/local/tmp type ramfs (rw,relatime)
/usr/local/tmp/image.cfs on /usr/local/modules type squashfs (ro,relatime)
tmpfs on /mnt type tmpfs (rw,nosuid,nodev,noexec,relatime,size=1024k,nr_inodes=0)
tmpfs on /var/log type tmpfs (rw,nosuid,nodev,noexec,relatime,size=40960k,nr_inodes=0)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noexec,relatime,size=102400k,nr_inodes=20000)
/dev/md0p1 on /usr/local/upload type ext4 (rw,relatime,data=ordered)
/dev/sdc4 on /mnt/HD_c4 type ext4 (rw,nosuid,nodev,noexec,noatime,nodiratime,nobarrier,quota,usrquota,grpquota,data=ordered)
/dev/sdd4 on /mnt/HD_d4 type ext4 (rw,nosuid,nodev,noexec,noatime,nodiratime,nobarrier,quota,usrquota,grpquota,data=ordered)
/dev/sdb4 on /mnt/HD_b4 type ext4 (rw,nosuid,nodev,noexec,noatime,nodiratime,nobarrier,quota,usrquota,grpquota,data=ordered)
/dev/sda4 on /mnt/HD_a4 type ext4 (rw,nosuid,nodev,noexec,noatime,nodiratime,nobarrier,quota,usrquota,grpquota,data=ordered)
/dev/md1 on /mnt/HD/HD_b2 type ext4 (rw,noatime,nodiratime,nobarrier,quota,usrquota,grpquota,stripe=32,data=ordered)

Thank you in advance to anybody who can help me!


Hi @mikejbud,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:

My system just rebooted and mentioned something about a failure in volume 1 and I am having the same problem.