redhat 系统日志中的错误信息(帮忙分析)

b-dragon

我对REDHAT LINUX不懂.
最近一台机器不断报错(/var/log/messages),应用没什么影响,以下是/var/log/messages中的信息.
Dec 26 09:51:17 DB_DSEM gconfd (root-24497): starting (version 1.0.9), pid 24497 user 'root'
Dec 26 09:51:23 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:51:23 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:51:23 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:51:32 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:51:33 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:51:43 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:51:43 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
Dec 26 09:51:48 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:51:48 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:51:48 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:51:58 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:51:58 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:52:08 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:52:08 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
Dec 26 09:52:13 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:52:13 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:52:13 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:52:23 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:52:23 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:52:33 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:52:33 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
Dec 26 09:52:40 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:52:40 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:52:40 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:52:40 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:52:50 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:52:50 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:53:00 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:53:00 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
Dec 26 09:53:06 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:53:06 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:53:06 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:53:16 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:53:16 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:53:26 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:53:26 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
Dec 26 09:53:31 DB_DSEM kernel: hda: status timeout: status=0xc0 { Busy }
Dec 26 09:53:31 DB_DSEM kernel: hda: drive not ready for command
Dec 26 09:53:31 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:53:41 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:53:41 DB_DSEM kernel: hda: ATAPI reset complete
Dec 26 09:53:51 DB_DSEM kernel: hda: irq timeout: status=0xc0 { Busy }
Dec 26 09:53:51 DB_DSEM kernel: end_request: I/O error, dev 03:00 (hda), sector 0
不知道这是什么错误,请那位帮忙分析