>>>>> "Christian" == Christian Borntraeger <borntraeger@xxxxxxxxxx> writes: Christian> device-mapper: table: 253:4: adding target device sdq caused Christian> an alignment inconsistency: physical_block_size=4096, Christian> logical_block_size=512, alignment_offset=0, start=0 Odd. Please provide the output of: # sg_readcap -l /dev/sdN # sg_vpd -p bl /dev/sdN -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel