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Readynas 214 with usb decryption key makes the fourth bay innaccessible
This is a bit strange. We have a Readynas 214 with 4x WD Red 4TB drives. We have encyrpted all the drives and use a USB stick to decypt on boot. When we boot the system with the USB stick in, the NAS boots but with only three drives. The logs indicate that /dev/sdd failed to boot. If we pull the USB stick out as soon as it finishes decrypting then we get a NAS with 4 drives and everything works.
Has anyone else seen similar behaviour? Is it expected?
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I don't use disk encryption, but I agree that seems odd.
What firmware are you running on the NAS?
We are running 6.8.1.
What actually happens in detail is this:
1. If you have the USB drive in when you switch on the NAS, the 4 bay lights flash, but as soon as the system starts booting we only have 3 bay lights - 4 is not lit and never works again.
2. To make it boot with all 4 drives I need to boot without the USB key and then we get all 4 drives. I then insert the USB stick when it says that decryption is required. I then remove the USB stick after it decrypts and the system works with all 4 drives.
Both behaviours are repeatable. The USB is plugged in the front USB port.
Looking at the successful boot dmseg.log and it has the following text in it:
[Thu Nov 23 15:15:30 2017] ata4: link is slow to respond, please be patient (ready=0)
[Thu Nov 23 15:15:34 2017] ata4: COMRESET failed (errno=-16)
[Thu Nov 23 15:15:40 2017] ata4: link is slow to respond, please be patient (ready=0)
[Thu Nov 23 15:15:44 2017] ata4: COMRESET failed (errno=-16)
[Thu Nov 23 15:15:45 2017] ata4: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[Thu Nov 23 15:15:45 2017] ata4.00: ATA-10: WDC WD40EFRX-68N32N0, 82.00A82, max UDMA/133
[Thu Nov 23 15:15:45 2017] ata4.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[Thu Nov 23 15:15:45 2017] ata4.00: configured for UDMA/133at the same time in the failed log we see
[Thu Nov 23 15:10:20 2017] ata4: SATA link down (SStatus 1 SControl 310)
[Thu Nov 23 15:10:20 2017] ata4: EH complete
[Thu Nov 23 15:10:20 2017] ata4: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen
[Thu Nov 23 15:10:20 2017] ata4: irq_stat 0x00000040, connection status changed
[Thu Nov 23 15:10:20 2017] ata4: SError: { DevExch }
[Thu Nov 23 15:10:20 2017] ata4: limiting SATA link speed to 1.5 Gbps
[Thu Nov 23 15:10:20 2017] ata4: hard resetting linkAny ideas what could be happening?
Thanks for any ideas.
What model disks are you using? Is disk 4 different from the others?
Perhaps also check the SMART stats for the problem drive, and see if it is healthy.
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