Sorry, extreme frustration from working on this for far too long... The dmesg I copied after rebooting was the wrong one as that was after a reboot where NetBSD didn't recognise wd3 which is frustrating as often on reboot, NetBSD doesn't recognise wd3 and I have to reboot several times until it does. The bios has no problem recognising it each time.
So the correct dmesg after reboot - note that I haven't cleaned the raid partition again as it takes 10 hours each time to do that. [ 5.260113] wd0 at atabus2 drive 0 [ 5.260113] wd0: <ST380011A> [ 5.260113] wd0: drive supports 16-sector PIO transfers, LBA48 addressing [ 5.260113] wd0: 76319 MB, 155061 cyl, 16 head, 63 sec, 512 bytes/sect x 156301488 sectors [ 5.340146] wd0: 32-bit data port [ 5.340146] wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) [ 5.340146] wd0(jmide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA) [ 5.340146] wd1 at atabus3 drive 0 [ 5.340146] wd1: <ST1000DM003-1ER162> [ 5.340146] wd1: drive supports 16-sector PIO transfers, LBA48 addressing [ 5.340146] wd1: 931 GB, 1938021 cyl, 16 head, 63 sec, 512 bytes/sect x 1953525168 sectors [ 5.390166] wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), WRITE DMA FUA, NCQ (32 tags) [ 5.390166] wd1(ahcisata1:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) (using DMA), NCQ (31 tags) [ 5.390166] wd2 at atabus5 drive 0 [ 5.400170] wd2: <ST4000DM004-2CV104> [ 5.400170] wd2: drive supports 16-sector PIO transfers, LBA48 addressing [ 5.400170] wd2: 3726 GB, 7752021 cyl, 16 head, 63 sec, 512 bytes/sect x 7814037168 sectors [ 5.420178] wd2: GPT GUID: 819b3e95-f1a1-4398-8a9f-7fa773de2428 [ 5.420178] dk0 at wd2: "efi@wd2", 65536 blocks at 34, type: msdos [ 5.420178] dk1 at wd2: "swap0", 10240 blocks at 65570, type: swap [ 5.420178] dk2 at wd2: "raid@ZFN15G3N", 7813961325 blocks at 75810, type: raidframe [ 5.420178] wd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), WRITE DMA FUA, NCQ (32 tags) [ 5.420178] wd2(ahcisata1:4:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) (using DMA), NCQ (31 tags) [ 5.420178] wd3 at atabus6 drive 0 [ 5.420178] wd3: <ST4000DM004-2CV104> [ 5.420178] wd3: drive supports 16-sector PIO transfers, LBA48 addressing [ 5.420178] wd3: 3726 GB, 7752021 cyl, 16 head, 63 sec, 512 bytes/sect x 7814037168 sectors [ 5.440186] wd3: GPT GUID: adb78224-46c2-4b4d-82b1-0203ef99a98d [ 5.440186] dk3 at wd3: "efi@wd3", 65536 blocks at 34, type: msdos [ 5.440186] dk4 at wd3: "swap1", 10240 blocks at 65570, type: swap [ 5.440186] dk5 at wd3: "raid@ZFN15SBZ", 7813961325 blocks at 75810, type: raidframe [ 5.440186] wd3: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), WRITE DMA FUA, NCQ (32 tags) [ 5.440186] wd3(ahcisata1:5:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) (using DMA), NCQ (31 tags) ... [ 353.808781] dk2 at wd2 (raid@ZFN15G3N) deleted [ 353.808781] dk1 at wd2 (swap0) deleted [ 353.808781] dk0 at wd2 (efi@wd2) deleted [ 353.848797] dk5 at wd3 (raid@ZFN15SBZ) deleted [ 353.848797] dk4 at wd3 (swap1) deleted [ 353.848797] dk3 at wd3 (efi@wd3) deleted [ 366.984410] wd2: GPT GUID: 9b019052-6451-4c04-a4ee-e69735155cc4 [ 366.984410] dk0 at wd2: "efi@wd2", 65536 blocks at 34, type: msdos [ 367.014423] dk0 at wd2 (efi@wd2) deleted [ 367.054441] wd2: GPT GUID: 9b019052-6451-4c04-a4ee-e69735155cc4 [ 367.054441] dk0 at wd2: "efi@wd2", 65536 blocks at 34, type: msdos [ 367.054441] dk1 at wd2: "swap0", 10240 blocks at 65570, type: swap [ 367.084453] dk1 at wd2 (swap0) deleted [ 367.084453] dk0 at wd2 (efi@wd2) deleted [ 367.114466] wd2: GPT GUID: 9b019052-6451-4c04-a4ee-e69735155cc4 [ 367.114466] dk0 at wd2: "efi@wd2", 65536 blocks at 34, type: msdos [ 367.114466] dk1 at wd2: "swap0", 10240 blocks at 65570, type: swap [ 367.114466] dk2 at wd2: "raid@ZFN15G3N", 7813961325 blocks at 75810, type: raidframe [ 367.324556] wd3: GPT GUID: a002d9fd-e165-4132-8a26-eb32a682b7ab [ 367.324556] dk3 at wd3: "efi@wd3", 65536 blocks at 34, type: msdos [ 367.354568] dk3 at wd3 (efi@wd3) deleted [ 367.384581] wd3: GPT GUID: a002d9fd-e165-4132-8a26-eb32a682b7ab [ 367.384581] dk3 at wd3: "efi@wd3", 65536 blocks at 34, type: msdos [ 367.384581] dk4 at wd3: "swap1", 10240 blocks at 65570, type: swap [ 367.424598] dk4 at wd3 (swap1) deleted [ 367.424598] dk3 at wd3 (efi@wd3) deleted [ 367.464616] wd3: GPT GUID: a002d9fd-e165-4132-8a26-eb32a682b7ab [ 367.464616] dk3 at wd3: "efi@wd3", 65536 blocks at 34, type: msdos [ 367.464616] dk4 at wd3: "swap1", 10240 blocks at 65570, type: swap [ 367.464616] dk5 at wd3: "raid@ZFN15SBZ", 7813961325 blocks at 75810, type: raidframe [ 367.534646] raid0: Component /dev/dk2 being configured at col: 0 [ 367.534646] Column: 0 Num Columns: 0 [ 367.534646] Version: 0 Serial Number: 0 Mod Counter: 0 [ 367.534646] Clean: No Status: 0 [ 367.534646] Number of columns do not match for: /dev/dk2 [ 367.534646] /dev/dk2 is not clean! [ 367.534646] raid0: Component /dev/dk5 being configured at col: 1 [ 367.534646] Column: 0 Num Columns: 0 [ 367.534646] Version: 0 Serial Number: 0 Mod Counter: 0 [ 367.534646] Clean: No Status: 0 [ 367.534646] Column out of alignment for: /dev/dk5 [ 367.534646] Number of columns do not match for: /dev/dk5 [ 367.534646] /dev/dk5 is not clean! [ 367.534646] raid0: There were fatal errors [ 367.534646] raid0: Fatal errors being ignored. [ 367.614680] raid0: RAID Level 1 [ 367.614680] raid0: Components: /dev/dk2 /dev/dk5 [ 367.614680] raid0: Total Sectors: 7813961248 (3815410 MB) [ 367.654697] raid0: New autoconfig value is: 1 [ 367.664701] raid0: New rootpartition value is: 1 [ 382.370987] raid0: Device already configured! [ 382.451020] raid0: New autoconfig value is: 1 [ 382.451020] raid0: New rootpartition value is: 1 [ 382.591080] raid0: GPT GUID: 83022d3a-9fcc-42f6-9de8-9aa34485c6af [ 382.591080] dk6 at raid0: "ffs@raid0", 7813961181 blocks at 34, type: ffs [ 446.980288] syncing disks... 2 done
