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ReadyNAS Pro6 fails to boot (at 98%, "Management service is offline") after hard shutdown
My ReadyNAS Pro 6 is using OS 6.10.10 - and had no issues in the past. Recently, I had to replace a disk (because it started to show problems): 3 TB -> 6 TB (WD). Replacing was no issue, syncing to...
WJ wrote:
I've only removed drive #1 (troubled 3TB) first and replaced it with a new 6 TB drive; then powered up. That would resulted in a sycn (took about 5h).
Only afterwards (and after having shutdown the Pro 6) I've added the additional 6 TB drive. That 2nd sync did not succeed.
The second drive would have needed TWO syncs one for the original 3 TB partition, and then a second sync to expand using the extra capacity. If the first sync succeeded, then it would be better to attempt to mount the volume with that disk install. It would need to be inserted with the NAS powered down though.
Without logs, we don't know what we are dealing with. It would be useful to see the disk partitioning, so if you could post the output of lsblk, that would be helpful.
WJ wrote:
Yes, I do have (weekly) backups but I'd like to avoid a factory reset.
While we might be able to get the volume mounted, there will be some corruption. The best path is to do the reset and restore the files from backup. In addition to getting you a clean system, it could well be the fastest path.
I've only removed drive #1 (troubled 3TB) first and replaced it with a new 6 TB drive; then powered up. That would resulted in a sycn (took about 5h).
Only afterwards (and after having shutdown the Pro 6) I've added the additional 6 TB drive. That 2nd sync did not succeed.
WJ wrote:
I've only removed drive #1 (troubled 3TB) first and replaced it with a new 6 TB drive; then powered up. That would resulted in a sycn (took about 5h).
Only afterwards (and after having shutdown the Pro 6) I've added the additional 6 TB drive. That 2nd sync did not succeed.
The second drive would have needed TWO syncs one for the original 3 TB partition, and then a second sync to expand using the extra capacity. If the first sync succeeded, then it would be better to attempt to mount the volume with that disk install. It would need to be inserted with the NAS powered down though.
Without logs, we don't know what we are dealing with. It would be useful to see the disk partitioning, so if you could post the output of lsblk, that would be helpful.
WJ wrote:
Yes, I do have (weekly) backups but I'd like to avoid a factory reset.
While we might be able to get the volume mounted, there will be some corruption. The best path is to do the reset and restore the files from backup. In addition to getting you a clean system, it could well be the fastest path.
- lsblk shows:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 5.5T 0 disk
├─sda1 8:1 0 4G 0 part
│ └─md0 9:0 0 4G 0 raid1 /
├─sda2 8:2 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
├─sda3 8:3 0 2.7T 0 part
│ └─md127 9:127 0 2.7T 0 raid5
└─sda4 8:4 0 2.7T 0 part
└─md126 9:126 0 2.7T 0 raid1
sdb 8:16 0 2.7T 0 disk
├─sdb1 8:17 0 4G 0 part
│ └─md0 9:0 0 4G 0 raid1 /
├─sdb2 8:18 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
└─sdb3 8:19 0 2.7T 0 part
└─md127 9:127 0 2.7T 0 raid5
sdc 8:32 0 5.5T 0 disk
├─sdc1 8:33 0 4G 0 part
├─sdc2 8:34 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
├─sdc3 8:35 0 2.7T 0 part
│ └─md127 9:127 0 2.7T 0 raid5
└─sdc4 8:36 0 2.7T 0 part
└─md126 9:126 0 2.7T 0 raid1
WJ wrote:
lsblk shows:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 5.5T 0 disk
├─sda1 8:1 0 4G 0 part
│ └─md0 9:0 0 4G 0 raid1 /
├─sda2 8:2 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
├─sda3 8:3 0 2.7T 0 part
│ └─md127 9:127 0 2.7T 0 raid5
└─sda4 8:4 0 2.7T 0 part
└─md126 9:126 0 2.7T 0 raid1
sdb 8:16 0 2.7T 0 disk
├─sdb1 8:17 0 4G 0 part
│ └─md0 9:0 0 4G 0 raid1 /
├─sdb2 8:18 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
└─sdb3 8:19 0 2.7T 0 part
└─md127 9:127 0 2.7T 0 raid5
sdc 8:32 0 5.5T 0 disk
├─sdc1 8:33 0 4G 0 part
├─sdc2 8:34 0 512M 0 part
│ └─md1 9:1 0 511M 0 raid1 [SWAP]
├─sdc3 8:35 0 2.7T 0 part
│ └─md127 9:127 0 2.7T 0 raid5
└─sdc4 8:36 0 2.7T 0 part
└─md126 9:126 0 2.7T 0 raid1Thanks
Can you post the output of cat /proc/mdstat
The next step is to see if md126 and md127 are both assembled.
root@NAS-Pro6:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md126 : active raid1 sda4[0] sdc4[1]
2930123904 blocks super 1.2 [2/2] [UU]
resync=DELAYEDmd127 : active raid5 sda3[2] sdc3[3] sdb3[1]
2925416832 blocks super 1.2 level 5, 64k chunk, algorithm 2 [3/3] [UUU]
[>....................] reshape = 0.0% (775488/2925416832) finish=2159213.2min speed=22K/secmd1 : active raid1 sda2[0] sdc2[2] sdb2[1]
523264 blocks super 1.2 [3/3] [UUU]md0 : active raid1 sda1[2] sdb1[1]
4190208 blocks super 1.2 [3/2] [UU_]unused devices: <none>
StephenB wrote:While we might be able to get the volume mounted, there will be some corruption. The best path is to do the reset and restore the files from backup. In addition to getting you a clean system, it could well be the fastest path.
You mean: we should not waste time but perform a proper factory reset and restore the files from the backup?
I'd still like to know the root cause of the problem.
And: when really setting up the entire system from scatch, should I use the two 6TB disks in the first two bays and the (older) 3TB disk in the third bay? Since the other 3TB disk just recently showed problems (ReadyNAS made me aware of), is it advisable to use the other (yet not troubled) 3TB disk? Both disks have the same age and operating hours...
WJ wrote:
I'd still like to know the root cause of the problem.
And: when really setting up the entire system from scatch, should I use the two 6TB disks in the first two bays and the (older) 3TB disk in the third bay? Since the other 3TB disk just recently showed problems (ReadyNAS made me aware of), is it advisable to use the other (yet not troubled) 3TB disk? Both disks have the same age and operating hours...We can get more info on what is going on now, but that might not tell us exactly what caused the problem.
On disks:
I don't use disks I have no confidence in. So I wouldn't use the "troubled" one.
As far as age goes, I ignore it. I'm more focused on reallocated/pending sectors, UNCs, and similar signs of distress. I have a 3 TB WD30EFRX in my Pro 6 with 33K power on hours, and several 2 TB drives in an NV+ with ~58K power hours. They still are working ok, so I leave them in service.
But there are people who believe in replacing their disks on a schedule. That's certainly a reasonable approach, just not one I use myself.
StephenB wrote:As far as age goes, I ignore it. I'm more focused on reallocated/pending sectors, UNCs, and similar signs of distress. I have a 3 TB WD30EFRX in my Pro 6 with 33K power on hours, and several 2 TB drives in an NV+ with ~58K power hours. They still are working ok, so I leave them in service.
Good to hear. I share your opinion - I've only kicked out the disk which ReadyNAS has reported as showing signs of trouble. Then I've quickly ordered two new disks - since I was afraid that the other 3TB disk will also turn bad, soon - which is not the case, yet.
That's why currently I'm using all 3 disks - the two new 6TB plus the older 3TB.
StephenB wrote:While we might be able to get the volume mounted, there will be some corruption. The best path is to do the reset and restore the files from backup. In addition to getting you a clean system, it could well be the fastest path.
Ok - I'll willing to do so.
But I'd like to ensure that I can reinstall my apps, in particular SSH.Currently, I'm using OS 6.10.10, so I'd need to downgrade to OS 6.10.9, I assume.
SSH is not an app, it's a setting in OS6. In order to install most apps, you'll want to stick with OS6.10.9 and you'll also have to make the changes in the thread StephenB pointed to.
I was referring to the app which activates the SSH feature.
And there's another one for controlling the SMB settings (but I've forgotten it's name).
I do not need/use any other app on the NAS.
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