Not sure if this is a general v6 question or specific to this prerelease. I am replacing 2 slow disks with spanky new ones. I have dual parity and figured I could rebuild them at the same time (understanding I have no failure protection). I have started the process and as far as I can tell it's working? There is an ominous warning that the new disks are unmountable (see pic). I am just wondering if I am doing anything wrong. ps. Notifications seem to think they are both being built.

Edited September 9, 20178 yr by interwebtech

Makes sense they would be unmounted while they are being rebuilt. The fact that the GUI is reporting they are unmountable and offering to let you format them seems like a problem. @bonienl  might want to look into that.

2 minutes ago, bjp999 said:

Makes sense they would be unmounted while they are being rebuilt. The fact that the GUI is reporting they are unmountable and offering to let you format them seems like a problem. @bonienl  might want to look into that.

Yeah I was just looking at that. All HDD lights are flashing madly and its reporting progress.

5 minutes ago, bjp999 said:

Makes sense they would be unmounted while they are being rebuilt. The fact that the GUI is reporting they are unmountable and offering to let you format them seems like a problem. @bonienl  might want to look into that.

Why would that make sense?  Dual parity would emulate the drives.  Unmountable to me says that the drives (if they have information on them) are corrupted.  Unless this is indeed a GUI reporting problem.

should I stop and format them and then restart the build? Showing as unmountable in dashboard too.

You still have the two older disks with all your data present on them, correct? If so you are protected.

 

I would not stop it and format the disks. Rebuild copies a disk sector by sector - whatever format is on them is irrelevant.

 

Wonder if it is possible if the drive is assigned a different file system then the restore is restoring. I once had that happen and needed to flip the filesystem for the drive to mount properly.

 

At this point I'd recommend just letting it continue.

2 minutes ago, Squid said:

Why would that make sense?  Dual parity would emulate the drives.  Unmountable to me says that the drives (if they have information on them) are corrupted.  Unless this is indeed a GUI reporting problem.

 

You might be right. The drive that is being rebuilt would not be mounted, but the emulated disk should be mounted. Could be the filesystem. But we'll have to see what Boniel has to say.

 

Whenever I am going to rebuild a disk, I first make sure that the emulated disk is valid and has the data I expect. Only then do I commence a rebuild. I also take the opportunity to copy off anything truly critical, normally to a workstation but sometimes to the array as extra insurance of not losing those files..

I recall rebuilding 2 disks at once when upgrading them. I did this after just after dual parity was released. Worked fine.

5 hours ago, bjp999 said:

Makes sense they would be unmounted while they are being rebuilt. The fact that the GUI is reporting they are unmountable and offering to let you format them seems like a problem. @bonienl  might want to look into that.

 

When disk(s) are being rebuilt they go to emulated state and appear as normal working condition. The fact that a unmountable error is displayed means there is something wrong with the disk, the rebuild won't be succesful in this case.

 

I could reproduce this, @limetechthere's a bug in rc8, both single and dual parity rebuild are not working correctly, emulated disk(s) show "unmountable: invalid partition"

 

P.S.: rebuild works correctly if it's done to a previously partitioned disk, it doesn't if it's done to a new/cleared disk (starting the array with an emulated disk doesn't work also).

Edited September 9, 20178 yr by johnnie.black

To the OP, if you're not using any of rc8's new features you can let the rebuilds finish, downgrade to rc7 and all disks will mount again.

7 hours ago, johnnie.black said:

P.S.: rebuild works correctly if it's done to a previously partitioned disk

 

I tested rebuild and all was fine, but it was on an already partitioned disk.

 

Thanks for your testing.

Yes, looking into this...

It appears the disks being rebuilt are not being emulated? Disk 1 & 3 are missing from the shares they belong to and the files are not available to plex.

16 hours ago, johnnie.black said:

To the OP, if you're not using any of rc8's new features you can let the rebuilds finish, downgrade to rc7 and all disks will mount again.

 

I am using the new SSL feature. Do I need to disable that before dropping back to rc7? It's going to be done in about an hour.

Now that was nerve-wracking. Downgraded to 6.4.0-rc7a and rebooted. Oops forgot to turn off SSL thingy. uR booted up with array stopped with valid configuration reported. Double-checked serial# against the drive slots list then started the array. Took a fair amount of time (sweating) buts its back up and running. Data appears to be where its supposed to be.

 

Is there anything I should delete off the boot stick to avoid conflicts with future updating to rc8 or higher with regard to having left the SSL provisioning stuff intact before downgrading?

I also want to report some strange during RC7a after disk change slot (single parity), all disks show unmountable. Stop / strat array still same.

Due to the parity just check no error in month 1st, so I remove the parity disk and start the array, all disk mountable again and finally add back parity disk and rebuild again.

Edited September 10, 20178 yr by Benson

10 minutes ago, Benson said:

I also want to report some strange during RC7a after disk change slot (single parity), all disks show unmountable. Stop / strat array still same.

Due to the parity just check no error in month 1st, so I remove the parity disk and start the array, all disk mountable again and finally add back parity disk and rebuild again.

 

You should probably start your own support thread as your issue is not the same as this one.

If OP think this not relate, that 's fine.

I don't need support due to no issue now, I want to provide another case for LT which I think it may related, all my disk show unmountable.

 

I quite sure the parity was normal, but I want to ask if any corrupt in parity disk will cause data disk unmountable ? ( PS I have remove all disk and add back before strat the array )

Edited September 10, 20178 yr by Benson