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x109 sdb故障重启

Posted by zuzhihui in 最新消息 on 2011/01/16 with No Comments

今天x109上面的vps无法重启，登录上去后发现负载非常大，日志文件报告很多sdb的错误，于是重启服务器，联系机房换硬盘。


[root@x109 ~]# w
04:00:24 up 16 days, 5:16, 3 users, load average: 50.66, 50.52, 49.80

日志文件的信息：

SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46072940
printk: 73 messages suppressed.
raid1: sdb3: rescheduling sector 4111160
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 1 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: limiting speed to UDMA/25
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 1 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for UDMA/25
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
raid1: sdb3: redirecting sector 4111160 to another mirror
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 45235004
raid1: sdb3: rescheduling sector 3273224
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
raid1: sdb3: redirecting sector 3273224 to another mirror
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 1 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 1 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46194716
raid1: sdb3: rescheduling sector 4232936
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: limiting speed to UDMA/16
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for UDMA/16
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46194804
raid1: sdb3: rescheduling sector 4233024
raid1: sdb3: rescheduling sector 4233112
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: limiting speed to PIO4
ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000008)
ata2.00: tag 0 cmd 0x60 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for PIO4
ata2: EH complete
ata2.00: limiting speed to PIO3
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for PIO3
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
ata2.00: limiting speed to PIO2
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for PIO2
ata2: EH complete
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
ata2.00: limiting speed to PIO1
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for PIO1
ata2: EH complete
ata2.00: limiting speed to PIO0
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: soft resetting port
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for PIO0
ata2: EH complete
SCSI device sdb: drive cache: write back
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46194716
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
raid1:md2: read error corrected (8 sectors at 4232936 on sdb3)
raid1: sdb3: redirecting sector 4232936 to another mirror
raid1: sdb3: redirecting sector 4233024 to another mirror
raid1: sda3: redirecting sector 4233112 to another mirror
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: drive cache: write back
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46195668
raid1: sdb3: rescheduling sector 4233888
raid1: sdb3: rescheduling sector 4233976
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46195844
raid1: sdb3: rescheduling sector 4234064
ata2: EH complete
SCSI device sdb: drive cache: write back
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
ata2: EH complete
ata2.00: speed down requested but no transfer mode left
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata2.00: (irq_stat 0x40000001)
ata2.00: tag 0 cmd 0x20 Emask 0x1 stat 0x41 err 0x4 (device error)
sd 1:0:0:0: SCSI error: return code = 0x08000002
sdb: Current: sense key: Aborted Command
Additional sense: No additional sense information
end_request: I/O error, dev sdb, sector 46195668
ata2: EH complete
SCSI device sdb: drive cache: write back
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
raid1:md2: read error corrected (8 sectors at 4233888 on sdb3)
raid1: sdb3: redirecting sector 4233888 to another mirror
PM: Removing info for xen-backend:console-37-0
ata2: spurious interrupt (irq_stat 0x2 active_tag -84148995 sactive 0x0)
ata2: spurious interrupt (irq_stat 0x2 active_tag -84148995 sactive 0x0)
ata2: spurious interrupt (irq_stat 0x1 active_tag -84148995 sactive 0x0)

另外，grep smartd /var/log/message* 可以看到很多smartd报告的错误信息：

/var/log/messages.1:Jan 9 18:15:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 18:45:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 19:16:00 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 19:45:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 20:15:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 20:45:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 21:16:00 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 21:45:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 22:16:00 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 22:45:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors
/var/log/messages.1:Jan 9 23:15:59 x109 smartd[2866]: Device: /dev/sdb, 4 Currently unreadable (pending) sectors

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