About 019a.

Nov 22 07:13:46 JUUB16MS kernel: [   73.806642] dasd-eckd 0.0.019a: A channel 
path to the device has become operational
Nov 22 07:13:46 JUUB16MS kernel: [   73.808080] dasd-eckd 0.0.019a: New DASD 
3390/0C (CU 3990/01) with 1443 cylinders, 15 heads, 224 sectors
Nov 22 07:13:46 JUUB16MS multipathd[505]: dasdi: add path (uevent)
Nov 22 07:13:46 JUUB16MS kernel: [   73.822758] dasd-eckd 0.0.019a: The disk 
layout of the DASD is not supported

Indeed this device appears to not be recorgised by the kernel. The
kernel fails to identify it as a RAWTRACK; or it may be failing linux
kernel layout validation. Net result is that bp_block property remains
uninitialised.

Is 019a device, similar to the 0198 device which was processed correctly?
Nov 22 07:12:57 JUUB16MS kernel: [   24.516335] dasd-eckd 0.0.0198: A channel 
path to the device has become operational
Nov 22 07:12:57 JUUB16MS kernel: [   24.517719] dasd-eckd 0.0.0198: New DASD 
3390/0C (CU 3990/01) with 1443 cylinders, 15 heads, 224 sectors
Nov 22 07:12:57 JUUB16MS kernel: [   24.519920] dasd-eckd 0.0.0198: DASD with 4 
KB/block, 1038960 KB total size, 48 KB/track, compatible disk layout

Do any other linux systems recognise / can format the 019a device?
Soon there will be 4.9 kernel in zesty to try if that kernel does any better 
job at detecting this device.
Is the device damaged in any way, or is somehow special?

Looking at the multipath output dasdi (which is 019a) is blacklisted,
yet syslog shows that a path to 019a was added. Is 019a a multipath
device, and were all paths to it enabled?

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https://bugs.launchpad.net/bugs/1643527

Title:
  dasdfmt fails after vary online. syslog show strange message "The disk
  layout of the DASD is not supported"

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