NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Rebooted to Degraded Volume and RAID Groups appeared without XRaid
Hello
I have a RN428 with Firmware 6.9.3 which has 2x6TB, 2x4TB, and 2x3TB disks installed in that order with a single data volume which was in X-Raid and working just fine.
I just backed up data and did a reboot to then do a firmware upgrade but after it booted up I am now getting a Degraded Volume error and in the GUI it is showing that X-Raid is no longer enabled and I now have 3 RAID groups selectable under the data volume.
Group 1 consists of disks 1,2,5,6
Group 2 consists of disks 2,3,4
Group 3 consists of disks 5,6
When i go click on X-Raid button on the right hand side (which used to be green and is now not) I get a message "You are attempting to switch from Flex-RAID to X-RAID. THis is not possible because you have expanded volumes."
The disk_info.log shows zero errors or bad sectors or anything for any of the disks. I didn't receive any warnings or anything before.
The volume.log shows zero errors but shows one of the pool data as state degraded.
I do see some errors in the kernal.log but i don't really know what they mean.
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: status: { DRDY ERR }
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: error: { UNC }
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: configured for UDMA/133
Jan 11 18:32:06 ReadyNAS kernel: sd 4:0:0:0: [sda] tag#4 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jan 11 18:32:06 ReadyNAS kernel: sd 4:0:0:0: [sda] tag#4 Sense Key : Medium Error [current] [descriptor]
Jan 11 18:32:06 ReadyNAS kernel: sd 4:0:0:0: [sda] tag#4 Add. Sense: Unrecovered read error - auto reallocate failed
Jan 11 18:32:06 ReadyNAS kernel: sd 4:0:0:0: [sda] tag#4 CDB: Read(16) 88 00 00 00 00 00 00 90 00 48 00 00 00 08 00 00
Jan 11 18:32:06 ReadyNAS kernel: blk_update_request: I/O error, dev sda, sector 9437257
Jan 11 18:32:06 ReadyNAS kernel: ata5: EH complete
Jan 11 18:32:06 ReadyNAS kernel: do_marvell_9170_recover: ignoring PCI device (8086:19b2) at PCI#0
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: exception Emask 0x0 SAct 0x100 SErr 0x0 action 0x0
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: irq_stat 0x40000008
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: failed command: READ FPDMA QUEUED
Jan 11 18:32:06 ReadyNAS kernel: ata5.00: cmd 60/08:40:48:00:90/00:00:00:00:00/40 tag 8 ncq 4096 in
res 41/40:00:49:00:90/00:00:00:00:00/00 Emask 0x409 (media error) <F>
There are lots of these types of messages in here.
and also:
Buffer I/O error on dev sda3, logical block 1, async page read
So can anybody help me understand what is going on? :) My data appears to be there when I access the shares. I rebooted it again to see if it would try to resync but it didn't.
Thanks
Craig.
23 Replies
The top priority now is to make sure you have a full backup. Your data is at risk.
Fixing the volume issues you are seeing is tricky, and there is no step-by-step available for it. It's safest to use paid Netgear support to troubleshoot and fix it.
If all the messages are related to sda, then disk 1 is misbehaving. Possibly it needs to be replaced - hard to say w/o looking at the full logs. But simple replacement might not be enough.
If you do want someone to look at the logs, then send a private message (PM) to one of the mods ( JohnCM_S or Marc_V ) asking them to take a look. Include a link to this thread. You can't attach the log zip, so you'll also need to upload it to cloud storage (dropbox, google drive, etc), and include a download link. Don't post the logs publicly.
You send a PM using the envelope icon in the upper right of the forum page.
Thank you for the response. I do have a backup luckily as i just finished it prior to the reboot.
All the messages in the kernal.log do appear to all be sda but to me its strange that the smart and disk info show no errors or anything for that disk.
I will try to PM the log files to the users like you suggested to see if anymore can be determined. I guess my last resort is to factory reset the device and rebuild the X-raid single volume and restore all the data and see if that helps me. I'm just concerned that these messages may mean that the controller in the NAS unit is failing or something like that.
Thanks
Craig.
There is no raid controller in the ReadyNAS. It is all done with software raids (mdadm). Essentially, it is the exact same as a standard PC with 8 HDD bays and in a different form factor of course.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
