dmesgを理解する方法

Redhatマシンバージョン7.2があり、各マシンにディスクがあります。

〜のように

sdb
sdc
sdd
sde
sdf

dmesg レポートから以下を取得します。

[873080.996700] Buffer I/O error on device sdf, logical block 50575986
[873080.996702] Buffer I/O error on device sdf, logical block 50575987
[873080.996703] Buffer I/O error on device sdf, logical block 50575988
[873080.996705] Buffer I/O error on device sdf, logical block 50575989
[873080.996706] Buffer I/O error on device sdf, logical block 50575990
[873742.837309] sd 1:0:2:0: [sdf] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[873742.837324] sd 1:0:2:0: [sdf] tag#0 CDB: Write(16) 8a 00 00 00 00 00 18 24 50 88 00 00 01 18 00 00
[873742.837329] blk_update_request: I/O error, dev sdf, sector 405033096
[873742.837338] EXT4-fs warning (device sdf): ext4_end_bio:332: I/O error -5 writing to inode 160908517 (offset 860160 size 139264 starting block 50629172)
[873742.837342] Buffer I/O error on device sdf, logical block 50629137
[873742.837347] Buffer I/O error on device sdf, logical block 50629138
[873742.837350] Buffer I/O error on device sdf, logical block 50629139

ここでdisk-sdfが問題であるかどうかわからず、交換する必要があります。