== sanity test 77a: normal checksum read/write operation ========================================================== 02:17:33 (1790921853) 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.157084 s, 53.4 MB/s 8+0 records in 8+0 records out 8388608 bytes (8.4 MB, 8.0 MiB) copied, 0.873987 s, 9.6 MB/s