しばらくして監視サーバーを初めて再起動したところ、画面が次のようになりました。
Jul 11 23:52:30 monit kernel: [ 25.255908] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jul 11 23:52:30 monit kernel: [ 25.256170] ata1.00: BMDMA stat 0x24
Jul 11 23:52:30 monit kernel: [ 25.256278] ata1.00: failed command: READ DMA
Jul 11 23:52:30 monit kernel: [ 25.256410] ata1.00: cmd c8/00:c0:20:68:35/00:00:00:00:00/e0 tag 0 dma 98304 in
Jul 11 23:52:30 monit kernel: [ 25.256416] res 51/40:9f:41:68:35/00:00:00:00:00/e0 Emask 0x9 (media error)
Jul 11 23:52:30 monit kernel: [ 25.256809] ata1.00: status: { DRDY ERR }
Jul 11 23:52:30 monit kernel: [ 25.256933] ata1.00: error: { UNC }
Jul 11 23:52:30 monit kernel: [ 25.304388] ata1.00: configured for UDMA/66
Jul 11 23:52:30 monit kernel: [ 25.304430] ata1: EH complete
. . .
Jul 11 23:52:30 monit kernel: [ 25.552451] sd 0:0:0:0: [sda] Unhandled sense code
Jul 11 23:52:30 monit kernel: [ 25.552462] sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jul 11 23:52:30 monit kernel: [ 25.552475] sd 0:0:0:0: [sda] Sense Key : Medium Error [current] [descriptor]
Jul 11 23:52:30 monit kernel: [ 25.552490] Descriptor sense data with sense descriptors (in hex):
Jul 11 23:52:30 monit kernel: [ 25.552498] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
Jul 11 23:52:30 monit kernel: [ 25.552529] 00 35 68 41
Jul 11 23:52:30 monit kernel: [ 25.552543] sd 0:0:0:0: [sda] Add. Sense: Unrecovered read error - auto reallocate failed
Jul 11 23:52:30 monit kernel: [ 25.552559] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 00 35 68 20 00 00 c0 00
Jul 11 23:52:30 monit kernel: [ 25.552587] end_request: I/O error, dev sda, sector 3500097
Jul 11 23:52:30 monit kernel: [ 25.556607] ata1: EH complete
HDDを交換する必要があることは既に知っていますが(データのコスト> HDDのコスト)、実際に何が問題なのかを自分の知識で知りたいと思います。
はい、監視サーバーにはRAIDがなく、HDDが1つだけです。私を見ないでください...