[Sticky] Big Sur on M1 machines and SoftRAID issues

Some additional information.

I updated Bib Sur to 11.1, reinstalled .47 beta and tried again. Still no joy.

Keep getting error message that SoftRaid is unable to create a file system for the volume.

I tried both file systems. Same result.

I confirmed this is an M1 related problem by moving the ThunderBay 4 Mini to a Intel Mac Mini which is running .47 beta. The RAID 4 volume was created and mounted without a problem.

Technically it is a driver loading issue. If you connect to the M1, it won't mount. The driver is not loading.

Did you go through the steps in internet recovery to enable third party developers?

https://support.apple.com/en-lk/guide/mac-help/mchl768f7291/mac

and, did you "allow" OWC as a identified developer? (System Preferences/Security)

Make sure to enable Full Disk Access in System Preferences/Security/Privacy, also, so the application can access the disks (Just drag SoftRAID into the window for Full Disk access after unlocking the Preference pane)

Lets see if this gets you going.

After uninstalling Softraid, the system didn't crash for close to a day. So I installed it again and sure enough a few hours (again while the system was idle / "asleep") it crashed/rebooted again. Kernel crash dump included below (I removed UUIDs for privacy)

panic(cpu 2 caller 0xfffffe001b187d9c): Sleep transition timed out after 35 seconds while calling power state change callbacks. Suspected bundle: com.apple.driver.AppleTypeCPhy. Thread 0x1704ba.
Debugger message: panic
Memory ID: 0xff
OS release type: User
OS version: 20C69
Kernel version: Darwin Kernel Version 20.2.0: Wed Dec 2 20:40:21 PST 2020; root:xnu-7195.60.75~1/RELEASE_ARM64_T8101
Fileset Kernelcache UUID: [removed]
Kernel UUID: [removed]
iBoot version: iBoot-6723.61.3
secure boot?: YES
Paniclog version: 13
KernelCache slide: 0x0000000012dd0000
KernelCache base: 0xfffffe0019dd4000
Kernel slide: 0x0000000013910000
Kernel text base: 0xfffffe001a914000
Kernel text exec base: 0xfffffe001a9dc000
mach_absolute_time: 0x190d7ade603
Epoch Time: sec usec
Boot : 0x5fe69674 0x000b79e9
Sleep : 0x5fe7ae1e 0x0006f513
Wake : 0x5fe7ae1e 0x000d0121
Calendar: 0x5fe7ae9d 0x000e61c6

CORE 0 recently retired instr at 0xfffffe001ab46c5c
CORE 1 recently retired instr at 0xfffffe001ab46c5c
CORE 2 recently retired instr at 0xfffffe001ab45798
CORE 3 recently retired instr at 0xfffffe001ab46c5c
CORE 4 recently retired instr at 0xfffffe001ab46c60
CORE 5 recently retired instr at 0xfffffe001ab46c60
CORE 6 recently retired instr at 0xfffffe001ab46c60
CORE 7 recently retired instr at 0xfffffe001ab46c60
Panicked task 0xfffffe166d1c6550: 214611 pages, 677 threads: pid 0: kernel_task
Panicked thread: 0xfffffe1679352610, backtrace: 0xfffffe3fe84e3470, tid: 1508662
lr: 0xfffffe001aa29f8c fp: 0xfffffe3fe84e34e0
lr: 0xfffffe001aa29d58 fp: 0xfffffe3fe84e3550
lr: 0xfffffe001ab4bf5c fp: 0xfffffe3fe84e3570
lr: 0xfffffe001ab3d914 fp: 0xfffffe3fe84e3620
lr: 0xfffffe001a9e37e8 fp: 0xfffffe3fe84e3630
lr: 0xfffffe001aa299e8 fp: 0xfffffe3fe84e39c0
lr: 0xfffffe001aa299e8 fp: 0xfffffe3fe84e3a30
lr: 0xfffffe001b1c443c fp: 0xfffffe3fe84e3a50
lr: 0xfffffe001b187d9c fp: 0xfffffe3fe84e3d70
lr: 0xfffffe001b0d37b4 fp: 0xfffffe3fe84e3d90
lr: 0xfffffe001aa6b4d0 fp: 0xfffffe3fe84e3e10
lr: 0xfffffe001aa6afac fp: 0xfffffe3fe84e3f00
lr: 0xfffffe001a9ecc14 fp: 0x0000000000000000

last started kext at 1517649276360: com.apple.driver.AppleUSBTopCaseDriver 4020.6 (addr 0xfffffe001a3a4000, size 16384)
loaded kexts:
com.softraid.driver.SoftRAID 6.0.1b47
com.OWC.ThunderboltDockChargingSupport 1.1.6
com.apple.driver.AppleUSBTopCaseDriver 4020.6
com.apple.filesystems.smbfs 3.4.1
com.apple.filesystems.msdosfs 1.10
com.apple.driver.AppleTopCaseHIDEventDriver 4020.6
com.apple.fileutil 20.036.15
com.apple.filesystems.autofs 3.0
com.apple.fsplaceholder 1.13.2
com.apple.iokit.IOBluetoothSerialManager 8.0.2f9
com.apple.driver.CoreStorageFsck 554
com.apple.driver.AppleAHCIPort 346
com.apple.iokit.SCSITaskUserClient 436.40.6
com.apple.driver.AppleIntelI210Ethernet 2.3.1
com.apple.driver.BCMWLANFirmware4378.Hashstore 1
com.apple.driver.AppleAOPVoiceTrigger 11.5
com.apple.driver.AppleThunderboltIP 4.0.3
com.apple.iokit.AppleBCM5701Ethernet 11.0.0
com.apple.driver.SEPHibernation 1
com.apple.driver.CoreKDL 1
com.apple.driver.AppleUSBDeviceNCM 5.0.0
com.apple.driver.DiskImages.ReadWriteDiskImage 493.0.0
com.apple.driver.DiskImages.UDIFDiskImage 493.0.0
com.apple.driver.DiskImages.RAMBackingStore 493.0.0
com.apple.driver.DiskImages.FileBackingStore 493.0.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.nke.l2tp 1.9
com.apple.filesystems.tmpfs 1
com.apple.filesystems.apfs 1677.60.23
com.apple.IOTextEncryptionFamily 1.0.0
com.apple.filesystems.hfs.kext 556.60.1
com.apple.security.BootPolicy 1
com.apple.BootCache 40
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.driver.ApplePMP 1
com.apple.driver.ApplePMPFirmware 1
com.apple.AGXG13G 172.20.14
com.apple.driver.AppleSmartIO2 1
com.apple.AppleEmbeddedSimpleSPINORFlasher 1
com.apple.driver.AppleAVD 375
com.apple.driver.AppleCS42L83Audio 437.96
com.apple.driver.AppleAVE2 401.63.3
com.apple.driver.AppleSPMIPMU 1.0.1
com.apple.driver.AppleT8103CLPCv3 1
com.apple.driver.AppleTAS5770LAmp 437.96
com.apple.driver.AppleT8020SOCTuner 1
com.apple.driver.AppleJPEGDriver 4.6.0
com.apple.driver.AppleMobileDispH13G-DCP 140.0
com.apple.driver.usb.AppleUSBHostT8103 1
com.apple.driver.AudioDMAController-T8103 1.58
com.apple.driver.AppleSPIMC 1
com.apple.driver.AppleS5L8960XNCO 1
com.apple.driver.AppleT8103PMGR 1
com.apple.driver.AppleS8000AES 1
com.apple.driver.AppleS5L8920XPWM 1.0.0d1
com.apple.driver.AppleS8000DWI 1.0.0d1
com.apple.driver.AppleS5L8960XWatchDogTimer 1
com.apple.driver.AppleInterruptController 1.0.0d1
com.apple.driver.AppleM68Buttons 1.0.0d1
com.apple.driver.AppleBluetoothModule 1
com.apple.driver.AppleSamsungSerial 1.0.0d1
com.apple.driver.AppleBCMWLANBusInterfacePCIe 1
com.apple.driver.AppleT8020DART 1
com.apple.driver.AppleS5L8940XI2C 1.0.0d2
com.apple.driver.AppleT8101 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOKitRegistryCompatibility 1
com.apple.iokit.EndpointSecurity 1
com.apple.driver.AppleDiskImages2 1
com.apple.AppleSystemPolicy 2.0.0
com.apple.nke.applicationfirewall 310
com.apple.kec.InvalidateHmac 1
com.apple.iokit.IOUSBFamily 900.4.2
com.apple.driver.AppleHIDKeyboard 222
com.apple.driver.AppleActuatorDriver 4400.28
com.apple.plugin.IOAVBDiscoveryPlugin 900.12
com.apple.driver.AppleMultitouchDriver 4400.28
com.apple.driver.AppleInputDeviceSupport 4400.35
com.apple.driver.AppleHSBluetoothDriver 4020.6
com.apple.driver.IOBluetoothHIDDriver 8.0.2f9
com.apple.kext.triggers 1.0
com.apple.iokit.IOAVBFamily 900.12
com.apple.plugin.IOgPTPPlugin 900.11
com.apple.iokit.IOAHCIBlockStorage 332
com.apple.driver.CoreStorage 554
com.apple.iokit.IOAHCIFamily 294
com.apple.driver.usb.IOUSBHostHIDDevice 1.2
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.AppleUSBAudio 401.4
com.apple.iokit.IOAudioFamily 300.6.1
com.apple.vecLib.kext 1.2.0
com.apple.iokit.IOEthernetAVBController 1.1.0
com.apple.driver.AppleThunderboltDPOutAdapter 8.1.4
com.apple.driver.AppleThunderboltPCIUpAdapter 4.1.1
com.apple.driver.AppleAOPAudio 14.32
com.apple.driver.IOBluetoothHostControllerPCIeTransport 8.0.2f9
com.apple.iokit.IOBluetoothHostControllerTransport 8.0.2f9
com.apple.driver.usb.AppleEmbeddedUSBXHCIPCI 1
com.apple.driver.usb.AppleUSBXHCIPCI 1.2
com.apple.driver.AppleEmbeddedUSB 1
com.apple.driver.AppleConvergedIPCOLYBTControl 1
com.apple.driver.AppleConvergedPCI 1
com.apple.driver.AppleBluetoothDebug 1
com.apple.driver.AppleSEPHDCPManager 1.0.1
com.apple.iokit.AppleSEPGenericTransfer 1
com.apple.driver.usb.networking 5.0.0
com.apple.driver.DiskImages.KernelBacked 493.0.0
com.apple.driver.AppleThunderboltDPInAdapter 8.1.4
com.apple.driver.AppleThunderboltDPAdapterFamily 8.1.4
com.apple.driver.AppleThunderboltUSBDownAdapter 1.0.4
com.apple.driver.AppleThunderboltPCIDownAdapter 4.1.1
com.apple.driver.AppleBTM 1.0.1
com.apple.nke.ppp 1.9
com.apple.AGXFirmwareKextG13GRTBuddy 172.20.14
com.apple.AGXFirmwareKextRTBuddy64 172.20.14
com.apple.driver.AppleXsanScheme 3
com.apple.driver.AppleDCPDPTXProxy 1.0.0
com.apple.driver.DCPDPFamilyProxy 1
com.apple.driver.AppleBSDKextStarter 3
com.apple.filesystems.hfs.encodings.kext 1
com.apple.iokit.IOGPUFamily 20.21.1
com.apple.driver.AppleDiagnosticDataAccessReadOnly 1.0.0
com.apple.driver.AppleSPU 1
com.apple.driver.AppleH11ANEInterface 4.51.0
com.apple.driver.AppleCSEmbeddedAudio 437.96
com.apple.driver.AppleHPM 3.4.4
com.apple.driver.AppleMCA2-T8103 510.72
com.apple.iokit.IONVMeFamily 2.1.0
com.apple.driver.AppleNANDConfigAccess 1.0.0
com.apple.driver.AppleDialogPMU 1.0.1
com.apple.driver.AppleStockholmControl 1.0.0
com.apple.driver.ApplePassthroughPPM 3.0
com.apple.driver.AppleEmbeddedAudio 437.96
com.apple.iokit.AppleARMIISAudio 80.34
com.apple.driver.DCPAVFamilyProxy 1
com.apple.iokit.IOMobileGraphicsFamily-DCP 343.0.0
com.apple.driver.AppleDCP 1
com.apple.driver.AppleFirmwareKit 1
com.apple.iokit.IOMobileGraphicsFamily 343.0.0
com.apple.driver.AppleSPMI 1.0.1
com.apple.driver.AppleUSBXDCIARM 1.0
com.apple.driver.AppleUSBXDCI 1.0
com.apple.iokit.IOUSBDeviceFamily 2.0.0
com.apple.driver.usb.AppleUSBXHCIARM 1
com.apple.driver.usb.AppleUSBXHCI 1.2
com.apple.driver.AppleEmbeddedUSBHost 1
com.apple.driver.usb.AppleUSBHub 1.2
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2
com.apple.driver.AppleT8103TypeCPhy 1
com.apple.driver.AppleSART 1
com.apple.driver.ApplePMGR 1
com.apple.driver.watchdog 1
com.apple.driver.usb.AppleUSBHostPacketFilter 1.0
com.apple.driver.AppleMobileApNonce 1
com.apple.driver.AppleDisplayCrossbar 1.0.0
com.apple.iokit.IODisplayPortFamily 1.0.0
com.apple.driver.AppleTypeCPhy 1
com.apple.driver.AppleThunderboltNHI 7.2.8
com.apple.driver.AppleT8103PCIeC 1
com.apple.iokit.IOThunderboltFamily 9.3.2
com.apple.driver.ApplePIODMA 1
com.apple.driver.AppleT8103PCIe 1
com.apple.driver.AppleBluetoothDebugService 1
com.apple.driver.AppleBCMWLANCore 1.0.0
com.apple.iokit.IO80211FamilyV2 1200.12.2b1
com.apple.driver.IOImageLoader 1.0.0
com.apple.driver.AppleGPIOICController 1.0.2
com.apple.driver.AppleFireStormErrorHandler 1
com.apple.driver.AppleMultiFunctionManager 1
com.apple.driver.corecapture 1.0.4
com.apple.driver.AppleEmbeddedPCIE 1
com.apple.iokit.IOTimeSyncFamily 900.11
com.apple.driver.DiskImages 493.0.0
com.apple.iokit.IOGraphicsFamily 585
com.apple.iokit.IOBluetoothFamily 8.0.2f9
com.apple.iokit.IOBluetoothPacketLogger 8.0.2f9
com.apple.driver.FairPlayIOKit 68.5.0
com.apple.iokit.CoreAnalyticsFamily 1
com.apple.driver.AppleSSE 1.0
com.apple.driver.AppleSEPKeyStore 2
com.apple.driver.AppleUSBTDM 511.60.2
com.apple.iokit.IOUSBMassStorageDriver 184.40.6
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOSCSIBlockCommandsDevice 436.40.6
com.apple.iokit.IOSCSIArchitectureModelFamily 436.40.6
com.apple.driver.AppleIPAppender 1.0
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleEffaceableStorage 1.0
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.KernelRelayHost 1
com.apple.iokit.IOUSBHostFamily 1.2
com.apple.driver.AppleUSBHostMergeProperties 1.2
com.apple.driver.usb.AppleUSBCommon 1.0
com.apple.driver.AppleSMC 3.1.9
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com.apple.driver.AppleEmbeddedTempSensor 1.0.0
com.apple.driver.AppleARMPMU 1.0
com.apple.iokit.IOAccessoryManager 1.0.0
com.apple.driver.AppleOnboardSerial 1.0
com.apple.iokit.IOSkywalkFamily 1
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com.apple.iokit.IONetworkingFamily 3.4
com.apple.iokit.IOSerialFamily 11
com.apple.driver.AppleSEPManager 1.0.1
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com.apple.driver.IOSlaveProcessor 1
com.apple.driver.AppleBiometricSensor 2
com.apple.iokit.IOHIDFamily 2.0.0
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com.apple.iokit.IOHDCPFamily 1.0.0
com.apple.iokit.IOCECFamily 1
com.apple.iokit.IOAudio2Family 1.0
com.apple.driver.AppleEmbeddedAudioLibs 1.17
com.apple.driver.AppleFirmwareUpdateKext 1
com.apple.driver.AppleM2ScalerCSCDriver 265.0.0
com.apple.iokit.IOSurface 289.3
com.apple.driver.IODARTFamily 1
com.apple.security.quarantine 4
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.kext.CoreTrust 1
com.apple.security.AppleImage4 3.0.0
com.apple.iokit.IOCryptoAcceleratorFamily 1.0.1
com.apple.driver.AppleARMPlatform 1.0.2
com.apple.iokit.IOStorageFamily 2.1
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com.apple.iokit.IOReportFamily 47
com.apple.kec.pthread 1
com.apple.kec.corecrypto 11.1
com.apple.kec.Libm 1

** Stackshot Succeeded ** Bytes Traced 608650 (Uncompressed 1574080) **

BTW: Does BigSur M1 come with a SoftRaid driver "out of the box"? Any way to revert to that?

No, we are no longer bundling with Apple starting with Apple silicon computers.

Run kextstat (in terminal) and make sure b47 is loading:

sudo kextstat -b com.softraid.driver.SoftRAID

I dont understand why this:

Sleep transition timed out after 35 seconds while calling power state change callbacks. Suspected bundle: com.apple.driver.AppleTypeCPhy

Is related to SoftRAID's driver. I can ask on Monday to engineering.

Thanks for responding (on a weekend !)

I verified that b47 is used:

234 0 0xfffffe0006eb8000 0x4000 0x4000 com.softraid.driver.SoftRAID (6.0.1b47) 633010D3-ABF6-3F5F-8621-31EA36D2BC36 <15 5 4 3>

Yes, the Kernel dumps do not appear to be related to SoftRaid, my only correlation so far is that the system appears to be running stable without Softraid and unstable with Softraid.

I also just had the Thunderbay Flex "drop" again where it showed up as ejected (I had some scripts copy data to the disks, but the system was again not used interactively at the time).

I was not able to find any related log message (including a screenshot of the dialog as an attachment)

I will try a clean OS install next. During setup, I let the Apple Migration tool copy data from an Intel MacBook Pro. Maybe it copied something that interferes with the M1 Mac.

If you can capture a panic log, that would be appreciated. Apple will treat any kernel panics on the M1 seriously. The debugger on M1 is not working yet, but there should be panic logs, if you "report" the problem to Apple, hopefully "more info" will show it (save it to a text edit file if so)

Was the volume lock on the M1? That is not happy news, I would hope the new architecture would prevent this.

Next time you get that message, copy a 1K file to the volume. Is it indeed write protected?

The volume lock message was on the M1, but the disk worked fine after this happened. There were a number of popups like this (maybe 3 volume locks and disk removed without unmounting messages). I did a fresh install now to see if that helps. I am a bit suspicious that some of this may have been caused by the system copy from the old MacBook Pro to the M1 MacMini. I will capture logs next time this happens (if it happens). I also sent all the kernel panic logs to Apple via the built-in "sent to Apple" feature.

Save the kernel panic to text and get them to me, I would like to see what is in them. (copy/paste into text edit)

The volume lock says the disks in the IO registry were renumbered. (or is a bug in SoftRAID Monitor) If you can copy data to the volume reported to be locked, then it might be a reporting bug. Thanks

@softraid-support

I did all the steps you asked about.

Still no joy.

@dmwfotos

Attach a SoftRAID Tech Support file, I can see where it is not working, hopefully.

@softraid-support

Here you go

I did a complete rebuild of the system. No kernel panic so far, but the Raid5 volume stopped responding again and I got the "Volume Ejected" popup messages again.

The RAID 5 volume is on an OWC Thunderbay Flex 8. It is directly connected to an M1 MacMini via Thunderbolt 3. There is also a non-RAID SSD that is part of the Flex 8. The SSD is not affected (so this doesn't look like a cable issue, which should have affected both). The system was again idle with screensaver running. 

Here are the logs I was able to spot. The log mentions unchecking "Put hard disks to sleep when possible". That checkbox was indeed checked (it is the default setting). I unchecked this now. Maybe that will help. But this may be something SoftRaid could check to make sure it is unchecked?

Running SoftRAID 6.0.1 b47.

As the logs show, this happened three times with exactly 5 minutes "pause". No data was lost as far as I can tell.

Dec 28 16:14:03 - SoftRAID Driver: A disk (disk17, SoftRAID ID: 089A1509061F7B80) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk11, SoftRAID ID: 089A150F85E4C280) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk13, SoftRAID ID: 089A150C99F48C00) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk15, SoftRAID ID: 089A150A28C5EA80) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk14, SoftRAID ID: 089A150B70834080) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk12, SoftRAID ID: 089A150DFC2B2E80) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:14:03 - SoftRAID Driver: A disk (disk16, SoftRAID ID: 089A1507BD6AD880) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:14:03 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:14:03 - SoftRAID Driver: The SoftRAID volume "Bulk" (disk18) encountered an error (E00002E4). A program attempted to read or write to a volume which was no longer accepting i/o requests.
Dec 28 16:19:19 - SoftRAID Driver: A disk (disk15, SoftRAID ID: 089A1507BD6AD880) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:19:19 - SoftRAID Driver: A disk (disk14, SoftRAID ID: 089A150DFC2B2E80) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:19:19 - SoftRAID Driver: A disk (disk12, SoftRAID ID: 089A150F85E4C280) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:19:19 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:19:19 - SoftRAID Driver: A disk (disk16, SoftRAID ID: 089A1509061F7B80) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:19:19 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:19:28 - SoftRAID Driver: The SoftRAID volume "Bulk" (disk17) encountered an error (E00002E4). A program attempted to read or write to a volume which was no longer accepting i/o requests.
Dec 28 16:19:30 - SoftRAID Driver: The SoftRAID volume "Bulk" is missing one or more disks. It has been mounted but will not offer the normal level of data protection.
Dec 28 16:19:31 - SoftRAID Driver: The RAID volume "Bulk" (disk17) is out of sync. A rebuild has started automatically.
Dec 28 16:19:49 - SoftRAID Driver: The RAID volume "Bulk" (disk17) has been rebuilt successfully.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk15, SoftRAID ID: 089A1507BD6AD880) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk11, SoftRAID ID: 089A150B70834080) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk13, SoftRAID ID: 089A150C99F48C00) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk16, SoftRAID ID: 089A1509061F7B80) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk5, SoftRAID ID: 089A150A28C5EA80) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk14, SoftRAID ID: 089A150DFC2B2E80) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:24:05 - SoftRAID Driver: A disk (disk12, SoftRAID ID: 089A150F85E4C280) for the SoftRAID volume "Bulk" (disk17) was removed or stopped responding while the volume was mounted and in use.
Dec 28 16:24:05 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 16:24:05 - SoftRAID Driver: The SoftRAID volume "Bulk" (disk17) encountered an error (E00002E4). A program attempted to read or write to a volume which was no longer accepting i/o requests.

and just happened again, after I unchecked "Put hard disks to sleep when possible". Same error as above:

Dec 28 18:00:53 - SoftRAID Driver: A disk (disk15, SoftRAID ID: 089A1507BD6AD880) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 18:00:53 - SoftRAID Driver: A disk (disk14, SoftRAID ID: 089A150DFC2B2E80) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 18:00:53 - SoftRAID Driver: A disk (disk16, SoftRAID ID: 089A1509061F7B80) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 18:00:53 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 18:00:53 - SoftRAID Driver: A disk (disk12, SoftRAID ID: 089A150F85E4C280) for the SoftRAID volume "Bulk" (disk18) was removed or stopped responding while the volume was mounted and in use.
Dec 28 18:00:53 - SoftRAID Driver: SoftRAID determined that there is a problem with your Mac. Turn off sleep in the Energy Saver pane of System Preferences to prevent this problem from occurring.
Dec 28 18:01:02 - SoftRAID Driver: The SoftRAID volume "Bulk" (disk18) encountered an error (E00002E4). A program attempted to read or write to a volume which was no longer accepting i/o requests.
Dec 28 18:01:03 - SoftRAID Driver: The SoftRAID volume "Bulk" is missing one or more disks. It has been mounted but will not offer the normal level of data protection.
Dec 28 18:01:06 - SoftRAID Driver: The RAID volume "Bulk" (disk18) is out of sync. A rebuild has started automatically.
Dec 28 18:01:19 - SoftRAID Driver: The RAID volume "Bulk" (disk18) has been rebuilt successfully.

I now checked "Prevent computer from sleeping automatically when the display is off". Let's see if that helps.