I have got the Raidsonic NAS-4220B, which had been giving me hard times very often with a degraded RAID. When I’ve got fed up with it, I have put on a shelf for some time, and got myself other NAS solution for my family data, photos, videos backups.

I do not like to though things away, I rather try to fix them. I have came across an article which suggested, the HDD on SATA can get disconnected and RAID degraded due to bad SATA cables. I have seen following errors in dmesg log:

ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl 310)
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: configured for UDMA/100
ata1: EH complete
ata1.00: exception Emask 0x10 SAct 0x1 SErr 0x10300 action 0xe frozen
ata1.00: irq_stat 0x08400000, interface fatal error, PHY RDY changed
ata1: SError: { UnrecovData Persist PHYRdyChg }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:00:76:05/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 40/00:04:00:76:05/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl 310)
ata1: hard resetting link
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: configured for UDMA/100
ata1: EH complete
ata1.00: exception Emask 0x10 SAct 0x1 SErr 0x10300 action 0xe frozen
ata1.00: irq_stat 0x08400000, interface fatal error, PHY RDY changed
ata1: SError: { UnrecovData Persist PHYRdyChg }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:00:85:05/01:00:00:00:00/40 tag 0 ncq 131072 in
         res 40/00:04:00:85:05/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: SATA link down (SStatus 0 SControl 310)

I have gave it a shot, and purchased top quality SATA cables (AKASA cabel SATA 3.0 15cm 6Gb/s). I had to find the shortest, as there is not much space for them in the box, and they would obstruct an airflow through the NAS. I have  installed Tobias Waldvogel’s OpenWRT built for the NAS-4220B and run stability tests for some time with satisfactory results.

I have transferred all backups and files to my new Synology Diskstation, so I could play with the IcyBox NAS-4220B more, e.g. start to compile my own firmware. I have found LEDE Project (fork from OpenWRT), and found their image for NAS-4220B, which prevent the NAS to boot. So after successful resurrection I have bricked my NAS.