Hartmon8/hd_write_verify

LBA tools(hd_write_verify & hd_write_verify_dump) are very useful for testing Storage stability and verifying DATA consistency, there are much better than FIO & vdbench's verifying functions. for example: physical disk: ide/sata/scsi/ssd/iscsi/fc/raid/...; virtual disk: loop/nbd/lvm/soft raid/...; VM disk: ide/sata/scsi/virtio-blk/virtio-scsi/...;