6027-2026 READRES ioctl failed with errno=`returnCode`, tried `timesTried` times. Related values are: scsi_status=`scsiStatusValue`, sense_key=`senseKeyValue`, scsi_asc=`scsiAscValue`, scsi_ascq=`scsiAscqValue`.

Explanation
A REGISTER ioctl call failed
with stated errno value, and related values.

User response
Check the reported errno and
correct the problem if possible.    Otherwise, contact  the IBM® Support Center.