我执行了dmesg --level=err获取磁盘报告的错误。我得到了一长串 blk_update_request：I/O 错误。我是 Ubuntu 或任何基于 Linux 的操作系统的新手，所以有人可以解释给定的终端输出并告诉我磁盘的健康状况以及如何处理它吗？提前谢谢！
[ 4767.244628] blk_update_request: I/O error, dev sda, sector 838765440 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 5446.585078] ata1.00: exception Emask 0x0 SAct 0x18800000 SErr 0x0 action 0x0
[ 5446.585088] ata1.00: irq_stat 0x40000008
[ 5446.585095] ata1.00: failed command: READ FPDMA QUEUED
[ 5446.585108] ata1.00: cmd 60/08:b8:58:8c:38/00:00:2f:00:00/40 tag 23 ncq dma 4096 in
res 41/40:00:58:8c:38/00:00:2f:00:00/00 Emask 0x409 (media error) <F>
[ 5446.585113] ata1.00: status: { DRDY ERR }
[ 5446.585117] ata1.00: error: { UNC }
[ 5446.587251] blk_update_request: I/O error, dev sda, sector 792235096 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
[ 5449.547647] ata1.00: exception Emask 0x0 SAct 0x80007000 SErr 0x0 action 0x0
[ 5449.547657] ata1.00: irq_stat 0x40000008
[ 5449.547664] ata1.00: failed command: READ FPDMA QUEUED
[ 5449.547676] ata1.00: cmd 60/08:70:58:8c:38/00:00:2f:00:00/40 tag 14 ncq dma 4096 in
res 41/40:00:58:8c:38/00:00:2f:00:00/00 Emask 0x409 (media error) <F>
[ 5449.547682] ata1.00: status: { DRDY ERR }
[ 5449.547686] ata1.00: error: { UNC }
[ 5449.549791] blk_update_request: I/O error, dev sda, sector 792235096 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 5452.468874] ata1.00: exception Emask 0x0 SAct 0x1c0000 SErr 0x0 action 0x0
[ 5452.468884] ata1.00: irq_stat 0x40000008
[ 5452.468891] ata1.00: failed command: READ FPDMA QUEUED
[ 5452.468904] ata1.00: cmd 60/08:a0:58:8c:38/00:00:2f:00:00/40 tag 20 ncq dma 4096 in
res 41/40:00:58:8c:38/00:00:2f:00:00/00 Emask 0x409 (media error) <F>
[ 5452.468909] ata1.00: status: { DRDY ERR }
[ 5452.468913] ata1.00: error: { UNC }
[ 5452.470809] blk_update_request: I/O error, dev sda, sector 792235096 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0