hola  Freshman Member

Make sure below things. 1. What is network topology? 2. Is there any device between NAS and router? Is double NAT network environment? 3. Go to Control Panel > Network > TCP/IP > Network Diagnosis, and ping out the host, what is the result? 4. Does router support UPnP? Go to Control Panel > Network > UPnP Port Mapping >…

Is there more information, description or steps to clarify this problem? What is the firmware version and its model name?

Thank you for the great assistance. mdadm --create --assume-clean --level=5 --raid-devices=4 --metadata=1.2 --chunk=64K --layout=left-symmetric --bitmap=none /dev/md2 /dev/sda3 missing /dev/sdc3 /dev/sdd3 I got the error, it said need to use --grow?

# cat /proc/mdstatPersonalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] md2 : inactive sda3[0](S) sdd3[4](S) sdc3[2](S) 11708660736 blocks super 1.2 md1 : active raid1 sdb2[5](F) sda2[0] sdd2[4] sdc2[2] 1998784 blocks super 1.2 [4/3] [U_UU] md0 : active raid1 sdb1[5](F) sda1[0] sdd1[4] sdc1[2] 1997760…

Dear @Mijzelf, Here I encountered the same problem, volume down (RAID 5), no option to repair and no accessible with my data. Is there any SOP commands help to repair my volume? :'(