Forum Discussion

Aspirant

Dec 08, 2016

Question: Legacy readynas RAID implementation

My ReadyNAS NVX Pioneer (x86, RAIDiator 4) is a bit old and in order to investigate the possibility to migrate the harddisks into a more modern system I'm investigating the way RAID is implemented. ...

Hard Disk

Sebazzz

Aspirant

Dec 08, 2016

Thanks for the reply! That clears up a lot.

I don't seem to be able to find any explicit RAID configuration (not in the md configuration file at least). Are all drives auto-detected on boot? How does mounting /c from /dev/c/c work, since one would expect the mount to happen from /dev/md2.

StephenB

Guru - Experienced User

Dec 08, 2016

I've never researched how it boots, but mdadm scans the partitions and assembles the arrays.

mdgm-ntgr
NETGEAR Employee Retired
Dec 08, 2016
After starting the RAID you then use some commands from lvm2 to scan for volume groups, activate the volume group and then you can mount the volume.

# vgscan
# vgchange -a y

# mkdir /c

# mount /dev/c/c /c

When done

# cd

# sync

# umount /c

# vgchange -a n

# mdadm --stop --scan

If your current system is still working I'd recommend getting a new OS6 NAS with new disks and using backup jobs to copy the data across.