Data Degraded

[MistaT]

Hi 

I noticed the unit flashing data DEGRADED and also Bay 2 Flashing.

I switched the unit off, removed Bay 2 and switched it back on.

Unit is still flashing  data DEGRADED

Since I was no further forward, I refitted Drive into Bay 2 but, now it does not show up when i go into Ready NAS.

How can I fix this?

RN204 with 2 x Western Digital 4TB Intellipower SATA 6Gb/s 64 MB Cache 3.5-Inch NAS Desktop Hard Disk Drive - Red (WD40EFRX)

[StephenB]

Normally that means that the disk in bay 2 has failed.  The other possibility (less likely) is that the SATA interface in the chassis failed.

Did you look into the logs?  There should some indication of failure in there.

If you have access to a windows PC, you test the drive with WD's Lifeguard diagnostic - connecting either with SATA or using a USB->SATA adapter/enclosurer.

BTW - do you have email alerts configured on your system?  If not, it is a good idea.

[MistaT]

Hi Stephen I have copied the recent logsbelow to see what you thing.

I am quite new to this. I did try to contact Netgear via telephone but I gave up after 30 mins in the queue. 

Wed Oct 26 2016 15:28:53		System: ReadyNASOS background service started.
Wed Oct 26 2016 15:28:51		Volume: Volume data is Degraded.
Wed Oct 26 2016 15:00:57		System: The system is shutting down.
Wed Oct 26 2016 14:25:41		System: Antivirus scanner definition file was updated to 201610260913.
Wed Oct 26 2016 14:23:47		Volume: Scrub completed for volume data'.
Wed Oct 26 2016 14:14:43		Volume: Scrub started for volume data.
Wed Oct 26 2016 14:11:33		System: Host name was changed to ReadyNAS.
Wed Oct 26 2016 14:08:36		System: ReadyNASOS background service started.
Wed Oct 26 2016 14:08:35		Volume: Volume data is Degraded.
Wed Oct 26 2016 14:06:42		System: The system is shutting down.
Wed Oct 26 2016 13:58:03		System: Firmware was upgraded to 6.6.0.
Wed Oct 26 2016 13:58:03		System: ReadyNASOS background service started.
Wed Oct 26 2016 13:58:02		Volume: Volume data is Degraded.
Wed Oct 26 2016 13:55:23		System: The system is rebooting.
Wed Oct 26 2016 7:01:38		System: Antivirus scanner definition file was updated to 201610260552.
Wed Oct 26 2016 6:44:50		System: ReadyNASOS background service started.
Wed Oct 26 2016 6:44:49		Volume: Volume data is Degraded.
Tue Oct 25 2016 14:47:34		System: The system is shutting down.
Tue Oct 25 2016 9:58:15		System: Antivirus scanner definition file was updated to 201610250914.
Tue Oct 25 2016 9:41:22		System: ReadyNASOS background service started.
Tue Oct 25 2016 9:41:21		Volume: Volume data is Degraded.
Mon Oct 24 2016 15:30:16		System: The system is shutting down.
Mon Oct 24 2016 14:37:03		System: Antivirus scanner definition file was updated to 201610241347.
Mon Oct 24 2016 7:13:08		Volume: Volume data health changed from Redundant to Degraded.
Mon Oct 24 2016 7:13:02		Disk: Disk Model:WDC WD40EFRX-68WT0N0 Serial:WD-WCC4E6VHJK8E was removed from Channel 2 of the head unit.
Sun Oct 23 2016 14:35:12		System: Antivirus scanner definition file was updated to 201610231304.
Sat Oct 22 2016 14:36:41		System: Antivirus scanner definition file was updated to 201610221333.
Fri Oct 21 2016 14:37:06		System: Antivirus scanner definition file was updated to 201610211346.
Thu Oct 20 2016 14:36:35		System: Antivirus scanner definition file was updated to 201610201307.
Wed Oct 19 2016 14:35:13		System: Antivirus scanner definition file was updated to 201610191338.
Tue Oct 18 2016 14:36:54		System: Antivirus scanner definition file was updated to 201610181008.

[StephenB]

Well, the system thinks the disk was removed (not failed).  However some disk (and chassis) failures might look like the disk was removed.

Can you connect the disk to a windows PC?

Try downloading the log zip file - you can see some information on the drives in smart_history.log.