fsck.ext4 -cDftty -C 0 /dev/sdb1

[root@wishmacer andrzejl]# fsck.ext4 -cDftty -C 0 /dev/sdb1
e2fsck 1.42.8 (20-Jun-2013)
Checking for bad blocks (read-only test): done
298_GB_X-Ternal: Updating bad block inode.
Pass 1: Checking inodes, blocks, and sizes
Pass 1: Memory used: 776k/3420k (581k/196k), time:  4.37/ 1.50/ 0.14
Pass 1: I/O read: 78MB, write: 1MB, rate: 17.85MB/s
Pass 2: Checking directory structure
Pass 2: Memory used: 776k/6232k (635k/142k), time:  1.75/ 0.18/ 0.10
Pass 2: I/O read: 32MB, write: 0MB, rate: 18.30MB/s
Pass 3: Checking directory connectivity
Peak memory: Memory used: 776k/6232k (635k/142k), time: 9842.28/ 2.04/ 0.30
Pass 3A: Optimizing directories
Pass 3A: Memory used: 1112k/6232k (705k/408k), time:  0.38/ 0.23/ 0.07
Pass 3A: I/O read: 36MB, write: 36MB, rate: 188.59MB/s
Pass 3: Memory used: 1112k/6232k (545k/568k), time:  0.39/ 0.24/ 0.07
Pass 3: I/O read: 36MB, write: 36MB, rate: 184.00MB/s
Pass 4: Checking reference counts
Pass 4: Memory used: 1112k/0k (337k/776k), time:  1.88/ 1.58/ 0.01
Pass 4: I/O read: 0MB, write: 0MB, rate: 0.00MB/s
Pass 5: Checking group summary information
Pass 5: Memory used: 1112k/0k (211k/902k), time:  0.18/ 0.15/ 0.00
Pass 5: I/O read: 0MB, write: 0MB, rate: 0.00MB/s

298_GB_X-Ternal: ***** FILE SYSTEM WAS MODIFIED *****
298_GB_X-Ternal: 69907/19537920 files (0.9% non-contiguous), 32470490/78142464 blocks
Memory used: 1112k/0k (211k/902k), time: 9846.79/ 4.05/ 0.40
I/O read: 156MB, write: 45MB, rate: 0.02MB/s
[root@wishmacer andrzejl]#