Accessing files on HDD from another device's RAID setup

[enisz]

Hi Everyone,

I just upgraded one of my HDD's in my other NAS and now I have a 3 TB HDD which still has some files I need. The other device is a Synology DiskStation 718+. My idea was that I can install this HDD to my Zyxel NSA 325 to access the data and transfer them to the new HDD over the network. I'm googling for a while now but I cannot get it working and I would like to ask for help.

fdisk shows this information:

$this->bbcode_second_pass_code('', '
[root@alarm /]# fdisk -l /dev/sdb
Disk /dev/sdb: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: TOSHIBA DT01ACA3
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: E10D9520-3026-4D97-B41A-03A30FD7B37C

Device Start End Sectors Size Type
/dev/sdb1 2048 4982527 4980480 2.4G Linux RAID
/dev/sdb2 4982528 9176831 4194304 2G Linux RAID
/dev/sdb5 9453280 5860326239 5850872960 2.7T Linux RAID
')

My files are on /dev/sdb5 and mounting it wasn't working. Googling led me to another tool called mdadm but I cannot make it work.

Can someone help me with this one? Or at least with some direction in which way should I look?

Thank You!

[enisz]

I found this article which is very similar to my case:
https://blog.sleeplessbeastie.eu/2012/05/08/how-to-mount-software-raid1-member-using-mdadm/

When I'm trying to create md virtual device i get this error:

$this->bbcode_second_pass_code('', '
[root@alarm ~]# mdadm -A -R /dev/md9 /dev/sdb5
modprobe: FATAL: Module md_mod not found in directory /lib/modules/4.4.97-1-ARCH
mdadm: Fail create md9 when using /sys/module/md_mod/parameters/new_array
mdadm: unexpected failure opening /dev/md9
')