I have a TR-004 connecte to a mac mini. I have 2 RAID 1 volumes, each based on a pair of identical drives. Recently, I experienced a power outage and after that one of the RAID volumes is not mounting. In the QNAP external RAID manager everything seems fine - volumes in “normal” state, all drives are “good”, also the LEDs on the enclosure are green and the log is not showing anything extraordinary. But one volume simply won’t mount. Any ideas how to investigate this more? This is hardware RAID mode, so the TR-004 looks like an ordinary USB drive and I am not sure how to get more info.
Did you have backups? If not, you might want an expert to read out the drives (and have backups next time)
Could you please provide a screenshot of your RAID configuration, as well as a photo of the physical RAID button on your TR-004? Thanks!
@dotcom, can you please post a photo of the DIP switches on the rear of the box?
With that much crayon on the front, grubby little fingers might have had their way with it.
Backup question was also ignored.
Indeed, little fingers were my first suspect but I can’t see how they could cause such damage. The drives were well seated and I have also tried to re-seat them.
As for the backups, I have partial backups not a 1:1 copy. That’s why I would prefer to fix the problem of the existing volume.
I attach a photo of the switch, I think it is in correct position for RAID 1, right?
I haven’t tried it yet but do you think that if I remove one drive from the volume and plug it into a PC then I could just read out the data on an external drive and re-create the RAID volume?
Multiple RAID on TR is always a bit weird..I thought it has to be in software control mode for that. (otherwise RAID1 with 4 drives would do a RAID10)
Taking the drive out would need recovery software, as windows will not be able to read the raw partitions (I think)..but you can try