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Kernel Panic when RAID 5 volume mounts

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 TLee
(@tlee)
Active Member Customer

I have a RAID 5 volume (in ThunderBay 4 with TB2) that was originally created in 2014. I'm running MacOS 11.1 and SoftRAID 6 beta 48. Overnight my iMac (15,1) kernel panicked. I found I cannot log in without a kernel panic unless the RAID 5 volume is disconnected. If I insert each disk one at a time, it appears in the SoftRAID interface with no problems reported. Adding 2nd disk is fine. But adding 3rd disk causes the volume to attempt to mount and then instant kernel panic.

I also tried connecting the disk chassis to my 2015 MacBook Pro with the latest version of MacOS Catalina (10.15.6?). It has no SoftRAID drivers installed. It also kernel panics as soon as it attempts to mount the volume.

It appears the HW is OK and likely the volume is corrupted. There doesn't seem to be a way to repair it since it immediately panics.

Quote
Topic starter Posted : 21/01/2021 5:11 pm
(@softraid-support)
Member Admin

Disable Auto rebuilds in SoftRAID preferences. I do not think this will help, but we need to try this first.

restart, then connect your volume. Does it panic?

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Posted : 21/01/2021 5:53 pm
 TLee
(@tlee)
Active Member Customer

Followed your suggestion. Did not help.

Also, I have a ThunderBay Mini with 4 SSD in RAID 6. Still works fine - same iMac.

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Topic starter Posted : 21/01/2021 7:08 pm
(@softraid-support)
Member Admin

If you connect two disks, run SoftRAID. Look for "predicted failure".

then connect the other two (only).

 

Are any disks failing?

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Posted : 21/01/2021 10:38 pm
 TLee
(@tlee)
Active Member Customer

All four drives show zero I/O errors and SMART status of PASS. No predicted drive failure message.

ReplyQuote
Topic starter Posted : 22/01/2021 12:44 pm
(@softraid-support)
Member Admin

@tlee

 

Attach two support files then, one with AB, the other with CD.

I may also need the kernel panic, if it is not in the support files.

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Posted : 22/01/2021 12:50 pm
 TLee
(@tlee)
Active Member Customer

Files attached.

ReplyQuote
Topic starter Posted : 22/01/2021 1:06 pm
(@softraid-support)
Member Admin

I am not sure why a mount should panic the system.

Did you ever try to connect this to another computer? Different OS (Catalina for example?)

 

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Posted : 22/01/2021 6:50 pm
 TLee
(@tlee)
Active Member Customer

Yes. From my original post: "I also tried connecting the disk chassis to my 2015 MacBook Pro with the latest version of MacOS Catalina (10.15.6?). It has no SoftRAID drivers installed. It also kernel panics as soon as it attempts to mount the volume."

ReplyQuote
Topic starter Posted : 23/01/2021 12:53 pm
 TLee
(@tlee)
Active Member Customer

Assuming this is not recoverable, which is seeming more likely than ever, can I reformat the drives and start over? Or should I get new drives? I have a backup to recover from.

ReplyQuote
Topic starter Posted : 23/01/2021 12:55 pm
(@softraid-support)
Member Admin

@tlee

 

If you have a backup, its probably simplest to delete the volume and recreate it.

Just insert 2 disks, delete the volume, then the other two, delete and create a new volume and restore.

 

I do not understand why just mounting would k.p. the system. Theoretically MacOS should prevent that.

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Posted : 23/01/2021 1:52 pm
 TLee
(@tlee)
Active Member Customer

Since there seems to be no chance of recovery, I deleted the volume and recreated a new one with the same disks. So far after a few days it is working fine. 

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Topic starter Posted : 26/01/2021 10:16 am
(@mcvosi)
Active Member

I'm having the same kernel panics, however the ThunderBay doesn't always need to be connected.

This is on macOS Monterey on new M1 Max MacBook Pro.

 

 

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Posted : 22/11/2021 2:16 pm
(@softraid-support)
Member Admin

@mcvosi

Are you running the 6.2.1 b3 driver? If not, try installing and see if it works or not.

Best is "uninstall SoftRAID", restart and then install the beta driver.

then connect your enclosure. let me know.

 

http://www.softraid.com/sr_beta

ReplyQuote
Posted : 22/11/2021 3:16 pm
(@mcvosi)
Active Member

@softraid-support Just installed the beta. Will let you know. Thx!

 

ReplyQuote
Posted : 22/11/2021 3:35 pm
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