== sanity test 77a: normal checksum read/write operation ========================================================== 10:17:42 (1790691462) 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.233317 s, 36.0 MB/s 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.840078 s, 10.0 MB/s