My Cloud: 'No Space Left on Device' During DataTransfer

My Cloud OS 5 My Cloud EX
1

My Cloud EX2 - brand new, with 3.5TB space left. Still getting above error message. Seeing this message:

root@MyCloudEX2Ultra ~ # df -i
Filesystem Inodes Used Available Use% Mounted on
/dev/root 14336 2279 12057 16% /
devtmpfs 16198 736 15462 5% /dev
mdev 16198 736 15462 5% /dev
ubi0:config 0 0 0 0% /usr/local/config
/dev/loop0 8697 8697 0 100% /usr/local/modules
tmpfs 0 0 0 0% /mnt
tmpfs 0 0 0 0% /var/log
tmpfs 20000 85 19915 0% /tmp
cgroup 16198 12 16186 0% /sys/fs/cgroup
/dev/md0p1 35200 10 35190 0% /usr/local/upload
/dev/sda4 258048 19 258029 0% /mnt/HD_a4
/dev/sdb4 258048 18 258030 0% /mnt/HD_b4
/dev/mapper/md1 243933184 291157 243642027 0% /mnt/HD/HD_a2

2

Hi @jkgandhi,

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:
https://support-en.wd.com/app/ask