Linux Soft RAID 及其 UUID 的问题

Chowroc

上次装的一个系统，使用了 SOFT RAID1：\r\nsh# cat /proc/mdstat\r\nmd0 : active raid1 sdc1[0] sdb1[1] sda1[3]\r\n      521984 blocks [4/3] [UU_U]\r\n\r\nmd2 : active raid1 sdc2[1]\r\n      310994176 blocks [2/1] [_U]\r\n\r\nmd1 : active raid1 sdb2[1] sda2[0]\r\n      310994176 blocks [2/2] [UU]\r\n\r\nunused devices: <none>\r\n\r\n开始运行良好。后来换机房，把服务器那过去开始出问题，下面是 /var/log/messages 截取的日志：\r\nNov 26 20:10:37 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 26 20:10:37 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 26 20:10:37 wd02 kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 26 20:10:37 wd02 kernel: ata4: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 26 20:10:37 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 26 20:10:37 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 26 20:10:45 wd02 kernel: ata3: hard resetting port\r\nNov 26 20:10:45 wd02 kernel: ata4: hard resetting port\r\nNov 26 20:10:45 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 26 20:10:45 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 26 20:10:45 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 26 20:10:45 wd02 kernel: ata3: EH complete\r\nNov 26 20:10:45 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 26 20:10:45 wd02 kernel: ata4: EH complete\r\nNov 26 20:10:45 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 26 20:10:45 wd02 kernel: sdc: Write Protect is off\r\nNov 26 20:10:45 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 26 20:10:45 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 26 20:10:45 wd02 kernel: sdd: Write Protect is off\r\nNov 26 20:10:45 wd02 kernel: SCSI device sdd: drive cache: write back\r\n......\r\nNov 27 14:33:26 wd02 kernel: ahci 0000:00:12.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode\r\nNov 27 14:33:26 wd02 kernel: ahci 0000:00:12.0: flags: 64bit ncq ilck pm led clo pmp pio slum part\r\nNov 27 14:33:26 wd02 kernel: ata1: SATA max UDMA/133 cmd 0xF8846100 ctl 0x0 bmdma 0x0 irq 201\r\nNov 27 14:33:26 wd02 kernel: ata2: SATA max UDMA/133 cmd 0xF8846180 ctl 0x0 bmdma 0x0 irq 201\r\nNov 27 14:33:26 wd02 kernel: ata3: SATA max UDMA/133 cmd 0xF8846200 ctl 0x0 bmdma 0x0 irq 201\r\nNov 27 14:33:26 wd02 kernel: ata4: SATA max UDMA/133 cmd 0xF8846280 ctl 0x0 bmdma 0x0 irq 201\r\nNov 27 14:33:26 wd02 kernel: scsi0 : ahci\r\nNov 27 14:33:26 wd02 kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:33:26 wd02 kernel: ata1.00: ATA-7, max UDMA/133, 625140335 sectors: LBA48 NCQ (depth 31/32)\r\nNov 27 14:33:26 wd02 kernel: ata1.00: ata1: dev 0 multi count 16\r\nNov 27 14:33:26 wd02 kernel: ata1.00: configured for UDMA/133\r\nNov 27 14:33:26 wd02 kernel: scsi1 : ahci\r\nNov 27 14:33:26 wd02 kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:33:26 wd02 kernel: ata2.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nNov 27 14:33:26 wd02 kernel: ata2.00: ata2: dev 0 multi count 16\r\nNov 27 14:33:26 wd02 kernel: ata2.00: configured for UDMA/133\r\nNov 27 14:33:26 wd02 kernel: scsi2 : ahci\r\nNov 27 14:33:26 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:33:26 wd02 kernel: ata3.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nNov 27 14:33:26 wd02 kernel: ata3.00: ata3: dev 0 multi count 16\r\nNov 27 14:33:26 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 14:33:26 wd02 kernel: scsi3 : ahci\r\nNov 27 14:33:26 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:33:26 wd02 kernel: ata4.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nNov 27 14:33:26 wd02 kernel: ata4.00: ata4: dev 0 multi count 16\r\nNov 27 14:33:26 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 14:33:26 wd02 kernel:   Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\nNov 27 14:33:26 wd02 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 05\r\nNov 27 14:33:26 wd02 kernel: SCSI device sda: 625140335 512-byte hdwr sectors (320072 MB)\r\nNov 27 14:33:26 wd02 kernel: sda: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sda: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel: SCSI device sda: 625140335 512-byte hdwr sectors (320072 MB)\r\nNov 27 14:33:26 wd02 kernel: sda: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sda: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel:  sda: sda1 sda2 sda3\r\nNov 27 14:33:26 wd02 kernel: sd 0:0:0:0: Attached scsi disk sda\r\nNov 27 14:33:26 wd02 kernel:   Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\nNov 27 14:33:26 wd02 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 05\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdb: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdb: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdb: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdb: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel:  sdb: sdb1 sdb2 sdb3\r\nNov 27 14:33:26 wd02 kernel: sd 1:0:0:0: Attached scsi disk sdb\r\nNov 27 14:33:26 wd02 kernel:   Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\nNov 27 14:33:26 wd02 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 05\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdc: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdc: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel:  sdc: sdc1 sdc2 sdc3\r\nNov 27 14:33:26 wd02 kernel: sd 2:0:0:0: Attached scsi disk sdc\r\nNov 27 14:33:26 wd02 kernel:   Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\nNov 27 14:33:26 wd02 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 05\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdd: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:33:26 wd02 kernel: sdd: Write Protect is off\r\nNov 27 14:33:26 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 14:33:26 wd02 kernel:  sdd: sdd1 sdd2 sdd3\r\nNov 27 14:33:26 wd02 kernel: sd 3:0:0:0: Attached scsi disk sdd\r\nNov 27 14:33:26 wd02 kernel: Initializing USB Mass Storage driver...\r\nNov 27 14:33:26 wd02 kernel: usbcore: registered new driver usb-storage\r\nNov 27 14:33:26 wd02 kernel: USB Mass Storage support registered.\r\nNov 27 14:33:26 wd02 kernel: device-mapper: ioctl: 4.11.0-ioctl (2006-09-14) initialised: dm-devel@redhat.com\r\nNov 27 14:33:26 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 14:33:26 wd02 kernel: md: autorun ...\r\nNov 27 14:33:26 wd02 kernel: md: considering sdd2 ...\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdd2 ...\r\n<span style=\"font-weight:bold;\">Nov 27 14:33:26 wd02 kernel: md: sdd1 has different UUID to sdd2</span>\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdc2 ...\r\n<span style=\"font-weight:bold;\">Nov 27 14:33:26 wd02 kernel: md: sdc1 has different UUID to sdd2</span>\r\nNov 27 14:33:26 wd02 kernel: md: sdb2 has different UUID to sdd2\r\nNov 27 14:33:26 wd02 kernel: md: sdb1 has different UUID to sdd2\r\nNov 27 14:33:26 wd02 kernel: md: sda2 has different UUID to sdd2\r\nNov 27 14:33:26 wd02 kernel: md: sda1 has different UUID to sdd2\r\nNov 27 14:33:26 wd02 kernel: md: created md2\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdc2>\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdd2>\r\nNov 27 14:33:26 wd02 kernel: md: running: <sdd2><sdc2>\r\nNov 27 14:33:26 wd02 kernel: raid1: raid set md2 active with 2 out of 2 mirrors\r\nNov 27 14:33:26 wd02 kernel: md: considering sdd1 ...\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdd1 ...\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdc1 ...\r\nNov 27 14:33:26 wd02 kernel: md: sdb2 has different UUID to sdd1\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdb1 ...\r\nNov 27 14:33:26 wd02 kernel: md: sda2 has different UUID to sdd1\r\nNov 27 14:33:26 wd02 kernel: md:  adding sda1 ...\r\nNov 27 14:33:26 wd02 kernel: md: created md0\r\nNov 27 14:33:26 wd02 kernel: md: bind<sda1>\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdb1>\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdc1>\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdd1>\r\nNov 27 14:33:26 wd02 kernel: md: running: <sdd1><sdc1><sdb1><sda1>\r\nNov 27 14:33:26 wd02 kernel: raid1: raid set md0 active with 4 out of 4 mirrors\r\nNov 27 14:33:26 wd02 kernel: md: considering sdb2 ...\r\nNov 27 14:33:26 wd02 kernel: md:  adding sdb2 ...\r\nNov 27 14:33:26 wd02 kernel: md:  adding sda2 ...\r\nNov 27 14:33:26 wd02 kernel: md: created md1\r\nNov 27 14:33:26 wd02 kernel: md: bind<sda2>\r\nNov 27 14:33:26 wd02 kernel: md: bind<sdb2>\r\nNov 27 14:33:26 wd02 kernel: md: running: <sdb2><sda2>\r\nNov 27 14:33:26 wd02 kernel: raid1: raid set md1 active with 2 out of 2 mirrors\r\nNov 27 14:33:26 wd02 kernel: md: ... autorun DONE.\r\nNov 27 14:33:26 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 14:33:26 wd02 kernel: md: autorun ...\r\nNov 27 14:33:26 wd02 kernel: md: ... autorun DONE.\r\nNov 27 14:33:26 wd02 kernel: kjournald starting.  Commit interval 5 seconds\r\nNov 27 14:33:26 wd02 kernel: EXT3-fs: mounted filesystem with ordered data mode.\r\n......\r\nNov 27 14:33:26 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 14:33:26 wd02 kernel: md: autorun ...\r\nNov 27 14:33:26 wd02 kernel: md: ... autorun DONE.\r\nNov 27 14:33:26 wd02 kernel: EXT3 FS on dm-0, internal journal\r\nNov 27 14:33:26 wd02 kernel: Adding 1052248k swap on /dev/sdd3.  Priority:-1 extents:1 across:1052248k\r\nNov 27 14:33:26 wd02 kernel: Adding 1052248k swap on /dev/sdc3.  Priority:-2 extents:1 across:1052248k\r\nNov 27 14:33:26 wd02 kernel: Adding 1052248k swap on /dev/sdb3.  Priority:-3 extents:1 across:1052248k\r\nNov 27 14:33:26 wd02 kernel: Adding 1052248k swap on /dev/sda3.  Priority:-4 extents:1 across:1052248k\r\n......\r\n\r\nNov 27 14:43:31 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 14:43:31 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 14:43:31 wd02 kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 14:43:31 wd02 kernel: ata4: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 14:43:32 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 14:43:32 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 14:43:39 wd02 kernel: ata3: hard resetting port\r\nNov 27 14:43:39 wd02 kernel: ata4: hard resetting port\r\nNov 27 14:43:40 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:43:40 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 14:43:40 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 14:43:40 wd02 kernel: ata4: EH complete\r\nNov 27 14:43:40 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 14:43:40 wd02 kernel: ata3: EH complete\r\nNov 27 14:43:40 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:43:40 wd02 kernel: sdd: Write Protect is off\r\nNov 27 14:43:40 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 14:43:40 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 14:43:40 wd02 kernel: sdc: Write Protect is off\r\nNov 27 14:43:40 wd02 kernel: SCSI device sdc: drive cache: write back\r\n......\r\nNov 27 14:50:20 wd02 kernel: Kernel command line: ro root=/dev/VolGroup00/LogVol00 1\r\n......\r\n\r\nNov 27 16:31:25 wd02 kernel: device-mapper: ioctl: 4.11.0-ioctl (2006-09-14) initialised: dm-devel@redhat.com\r\nNov 27 16:31:25 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 16:31:25 wd02 kernel: md: autorun ...\r\nNov 27 16:31:25 wd02 kernel: md: considering sdd2 ...\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdd2 ...\r\nNov 27 16:31:25 wd02 kernel: md: sdd1 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdc2 ...\r\nNov 27 16:31:25 wd02 kernel: md: sdc1 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md: sdb2 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md: sdb1 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md: sda2 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md: sda1 has different UUID to sdd2\r\nNov 27 16:31:25 wd02 kernel: md: created md2\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdc2>\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdd2>\r\nNov 27 16:31:25 wd02 kernel: md: running: <sdd2><sdc2>\r\nNov 27 16:31:25 wd02 kernel: raid1: raid set md2 active with 2 out of 2 mirrors\r\nNov 27 16:31:25 wd02 kernel: md: considering sdd1 ...\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdd1 ...\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdc1 ...\r\nNov 27 16:31:25 wd02 kernel: md: sdb2 has different UUID to sdd1\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdb1 ...\r\nNov 27 16:31:25 wd02 kernel: md: sda2 has different UUID to sdd1\r\nNov 27 16:31:25 wd02 kernel: md:  adding sda1 ...\r\nNov 27 16:31:25 wd02 kernel: md: created md0\r\nNov 27 16:31:25 wd02 kernel: md: bind<sda1>\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdb1>\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdc1>\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdd1>\r\nNov 27 16:31:25 wd02 kernel: md: running: <sdd1><sdc1><sdb1><sda1>\r\nNov 27 16:31:25 wd02 kernel: raid1: raid set md0 active with 4 out of 4 mirrors\r\nNov 27 16:31:25 wd02 kernel: md: considering sdb2 ...\r\nNov 27 16:31:25 wd02 kernel: md:  adding sdb2 ...\r\nNov 27 16:31:25 wd02 kernel: md:  adding sda2 ...\r\nNov 27 16:31:25 wd02 kernel: md: created md1\r\nNov 27 16:31:25 wd02 kernel: md: bind<sda2>\r\nNov 27 16:31:25 wd02 kernel: md: bind<sdb2>\r\nNov 27 16:31:25 wd02 kernel: md: running: <sdb2><sda2>\r\nNov 27 16:31:25 wd02 kernel: md: md1: raid array is not clean -- starting background reconstruction\r\nNov 27 16:31:25 wd02 kernel: raid1: raid set md1 active with 2 out of 2 mirrors\r\nNov 27 16:31:25 wd02 kernel: md: ... autorun DONE.\r\n<span style=\"font-weight: bold;\">Nov 27 16:31:25 wd02 kernel: md: syncing RAID array md1</span>\r\n<span style=\"font-weight: bold;\">Nov 27 16:31:25 wd02 kernel: md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.</span>\r\n<span style=\"font-weight: bold;\">Nov 27 16:31:25 wd02 kernel: md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction.</span>\r\n<span style=\"font-weight: bold;\">Nov 27 16:31:25 wd02 kernel: md: using 128k window, over a total of 310994176 blocks.</span>\r\nNov 27 16:31:25 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 16:31:25 wd02 kernel: md: autorun ...\r\nNov 27 16:31:25 wd02 kernel: md: ... autorun DONE.\r\nNov 27 16:31:25 wd02 kernel: kjournald starting.  Commit interval 5 seconds\r\nNov 27 16:31:25 wd02 kernel: EXT3-fs: mounted filesystem with ordered data mode.\r\n......

Chowroc

Nov 27 16:31:25 wd02 kernel: md: Autodetecting RAID arrays.\r\nNov 27 16:31:25 wd02 kernel: md: autorun ...\r\nNov 27 16:31:25 wd02 kernel: md: ... autorun DONE.\r\nNov 27 16:31:25 wd02 kernel: EXT3 FS on dm-0, internal journal\r\nNov 27 16:31:25 wd02 kernel: Adding 1052248k swap on /dev/sdd3.  Priority:-1 extents:1 across:1052248k\r\nNov 27 16:31:25 wd02 kernel: Adding 1052248k swap on /dev/sdc3.  Priority:-2 extents:1 across:1052248k\r\nNov 27 16:31:25 wd02 kernel: Adding 1052248k swap on /dev/sdb3.  Priority:-3 extents:1 across:1052248k\r\nNov 27 16:31:25 wd02 kernel: Adding 1052248k swap on /dev/sda3.  Priority:-4 extents:1 across:1052248k\r\nNov 27 16:31:25 wd02 kernel: ata4.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 16:31:25 wd02 kernel: ata4.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 16:31:25 wd02 kernel: ata4.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 16:31:25 wd02 kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 16:31:25 wd02 kernel: ata3.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 16:31:25 wd02 kernel: ata3.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 16:31:25 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 16:31:25 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 16:31:25 wd02 kernel: ata4: hard resetting port\r\nNov 27 16:31:25 wd02 kernel: ata3: hard resetting port\r\nNov 27 16:31:25 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 16:31:25 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 16:31:25 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 16:31:25 wd02 kernel: ata4: EH complete\r\nNov 27 16:31:25 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 16:31:25 wd02 kernel: ata3: EH complete\r\nNov 27 16:31:25 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 16:31:25 wd02 kernel: sdd: Write Protect is off\r\nNov 27 16:31:25 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 16:31:25 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 16:31:25 wd02 kernel: sdc: Write Protect is off\r\nNov 27 16:31:25 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 16:31:25 wd02 kernel: md: md1: sync done.\r\nNov 27 16:31:25 wd02 kernel: RAID1 conf printout:\r\nNov 27 16:31:25 wd02 kernel:  --- wd:2 rd:2\r\nNov 27 16:31:25 wd02 kernel:  disk 0, wo:0, o:1, dev:sda2\r\nNov 27 16:31:25 wd02 kernel:  disk 1, wo:0, o:1, dev:sdb2\r\n......\r\nNov 27 16:36:06 wd02 kernel: md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27\r\nNov 27 16:36:06 wd02 kernel: md: bitmap version 4.39\r\n......\r\n\r\n\r\nNov 27 17:50:47 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 17:50:47 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 17:50:47 wd02 kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 17:50:47 wd02 kernel: ata4: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 17:50:47 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 17:50:47 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 17:50:55 wd02 kernel: ata3: hard resetting port\r\nNov 27 17:50:55 wd02 kernel: ata4: hard resetting port\r\nNov 27 17:50:56 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 17:50:56 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 17:50:56 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 17:50:56 wd02 kernel: ata3: EH complete\r\nNov 27 17:50:56 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 17:50:56 wd02 kernel: ata4: EH complete\r\nNov 27 17:50:56 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 17:50:56 wd02 kernel: sdc: Write Protect is off\r\nNov 27 17:50:56 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 17:50:56 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 17:50:56 wd02 kernel: sdd: Write Protect is off\r\nNov 27 17:50:56 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 21:02:13 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:02:13 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:02:13 wd02 kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:02:13 wd02 kernel: ata4: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:02:13 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 21:02:13 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 21:02:21 wd02 kernel: ata3: hard resetting port\r\nNov 27 21:02:21 wd02 kernel: ata4: hard resetting port\r\nNov 27 21:02:21 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:02:21 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:02:21 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 21:02:21 wd02 kernel: ata3: EH complete\r\nNov 27 21:02:21 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 21:02:21 wd02 kernel: ata4: EH complete\r\nNov 27 21:02:21 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:02:21 wd02 kernel: sdc: Write Protect is off\r\nNov 27 21:02:21 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 21:02:21 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:02:21 wd02 kernel: sdd: Write Protect is off\r\nNov 27 21:02:21 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 21:27:16 wd02 kernel: ata4.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:27:16 wd02 kernel: ata4.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:27:16 wd02 kernel: ata4.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 21:27:16 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 21:27:16 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:27:16 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:27:17 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 21:27:24 wd02 kernel: ata4: hard resetting port\r\nNov 27 21:27:24 wd02 kernel: ata3: hard resetting port\r\nNov 27 21:27:25 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:27:25 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 21:27:25 wd02 kernel: ata4: EH complete\r\nNov 27 21:27:25 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:27:25 wd02 kernel: sdd: Write Protect is off\r\nNov 27 21:27:25 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 21:27:25 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:27:25 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 21:27:25 wd02 kernel: ata3: EH complete\r\nNov 27 21:27:25 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:27:34 wd02 kernel: sdc: Write Protect is off\r\nNov 27 21:27:34 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 21:27:34 wd02 kernel: ata3.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:27:34 wd02 kernel: ata3.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:27:34 wd02 kernel: ata3.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 21:27:34 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 21:27:34 wd02 kernel: ata3: hard resetting port\r\nNov 27 21:27:34 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:27:34 wd02 kernel: ata3.00: configured for UDMA/133\r\nNov 27 21:27:34 wd02 kernel: ata3: EH complete\r\nNov 27 21:27:34 wd02 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:27:34 wd02 kernel: sdc: Write Protect is off\r\nNov 27 21:27:34 wd02 kernel: SCSI device sdc: drive cache: write back\r\nNov 27 21:34:03 wd02 kernel: ata4.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 21:34:03 wd02 kernel: ata4.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 21:34:03 wd02 kernel: ata4.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 21:34:04 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 21:34:11 wd02 kernel: ata4: hard resetting port\r\nNov 27 21:34:12 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 21:34:12 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 21:34:12 wd02 kernel: ata4: EH complete\r\nNov 27 21:34:12 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 21:34:12 wd02 kernel: sdd: Write Protect is off\r\nNov 27 21:34:12 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 23:14:12 wd02 kernel: ata4.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 23:14:12 wd02 kernel: ata4.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 23:14:12 wd02 kernel: ata4.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 23:14:13 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 23:14:20 wd02 kernel: ata4: hard resetting port\r\nNov 27 23:14:21 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:14:21 wd02 kernel: ata4.00: configured for UDMA/133\r\nNov 27 23:14:21 wd02 kernel: ata4: EH complete\r\nNov 27 23:14:21 wd02 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nNov 27 23:14:21 wd02 kernel: sdd: Write Protect is off\r\nNov 27 23:14:21 wd02 kernel: SCSI device sdd: drive cache: write back\r\nNov 27 23:24:22 wd02 kernel: ata4.00: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 23:24:22 wd02 kernel: ata4.00: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 23:24:22 wd02 kernel: ata4.00: tag 0 cmd 0xea Emask 0x10 stat 0x40 err 0x0 (ATA bus error)\r\nNov 27 23:24:22 wd02 kernel: ata4: waiting for device to spin up (8 secs)\r\nNov 27 23:24:22 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x6 frozen\r\nNov 27 23:24:22 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 23:24:23 wd02 kernel: ata3: waiting for device to spin up (8 secs)\r\nNov 27 23:24:30 wd02 kernel: ata4: hard resetting port\r\nNov 27 23:24:30 wd02 kernel: ata3: hard resetting port\r\nNov 27 23:24:32 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:32 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:32 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:32 wd02 kernel: ata4.00: failed to IDENTIFY (I/O error, err_mask=0x100)\r\nNov 27 23:24:52 wd02 kernel: ata4.00: revalidation failed (errno=-5)\r\nNov 27 23:24:52 wd02 kernel: ata4: failed to recover some devices, retrying in 5 secs\r\nNov 27 23:24:52 wd02 kernel: ata3: SATA link down (SStatus 0 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ata3: failed to recover some devices, retrying in 5 secs\r\nNov 27 23:24:52 wd02 kernel: ata3: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ata4.00: failed to IDENTIFY (I/O error, err_mask=0x100)\r\nNov 27 23:24:52 wd02 kernel: ata4.00: revalidation failed (errno=-5)\r\nNov 27 23:24:52 wd02 kernel: ata4: failed to recover some devices, retrying in 5 secs\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ata3.00: failed to IDENTIFY (I/O error, err_mask=0x40)\r\nNov 27 23:24:52 wd02 kernel: ata3.00: revalidation failed (errno=-5)\r\nNov 27 23:24:52 wd02 kernel: ata3: failed to recover some devices, retrying in 5 secs\r\nNov 27 23:24:52 wd02 kernel: ata4: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata3: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ata4.00: failed to IDENTIFY (I/O error, err_mask=0x40)\r\nNov 27 23:24:52 wd02 kernel: ata4.00: revalidation failed (errno=-5)\r\nNov 27 23:24:52 wd02 kernel: ata4.00: disabled\r\nNov 27 23:24:52 wd02 kernel: ATA: abnormal status 0x7F on port 0x0\r\nNov 27 23:24:52 wd02 kernel: ata3.00: failed to IDENTIFY (I/O error, err_mask=0x100)\r\nNov 27 23:24:52 wd02 kernel: ata3.00: revalidation failed (errno=-5)\r\nNov 27 23:24:52 wd02 kernel: ata3.00: disabled\r\nNov 27 23:24:52 wd02 kernel: ata4: soft resetting port\r\nNov 27 23:24:52 wd02 kernel: ata3: soft resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ata4: EH pending after completion, repeating EH (cnt=4)\r\nNov 27 23:24:52 wd02 kernel: ata4: exception Emask 0x10 SAct 0x0 SErr 0x90200 action 0x5\r\nNov 27 23:24:52 wd02 kernel: ata4: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 23:24:52 wd02 kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: ata3: EH pending after completion, repeating EH (cnt=4)\r\nNov 27 23:24:52 wd02 kernel: ata3: exception Emask 0x10 SAct 0x0 SErr 0x4090200 action 0x5\r\nNov 27 23:24:52 wd02 kernel: ata3: (irq_stat 0x00400000, PHY RDY changed)\r\nNov 27 23:24:52 wd02 kernel: ata3: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: hard resetting port\r\nNov 27 23:24:52 wd02 kernel: ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nNov 27 23:24:52 wd02 kernel: sd 3:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: raid1: sdd2: rescheduling sector 619061936\r\nNov 27 23:24:52 wd02 kernel: ata4: EH complete\r\nNov 27 23:24:52 wd02 kernel: sd 3:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: raid1: Disk failure on sdd2, disabling device.\r\nNov 27 23:24:52 wd02 kernel:    Operation continuing on 1 devices\r\nNov 27 23:24:52 wd02 kernel: raid1: sdc2: redirecting sector 619061936 to another mirror\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: Buffer I/O error on device dm-0, logical block 151060377\r\nNov 27 23:24:52 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: RAID1 conf printout:\r\nNov 27 23:24:52 wd02 kernel:  --- wd:1 rd:2\r\nNov 27 23:24:52 wd02 kernel:  disk 0, wo:1, o:0, dev:sdd2\r\nNov 27 23:24:52 wd02 kernel:  disk 1, wo:0, o:1, dev:sdc2\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: ata4.00: detaching (SCSI 3:0:0:0)\r\nNov 27 23:24:52 wd02 kernel: RAID1 conf printout:\r\nNov 27 23:24:52 wd02 kernel:  --- wd:1 rd:2\r\nNov 27 23:24:52 wd02 kernel:  disk 1, wo:0, o:1, dev:sdc2\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: Buffer I/O error on device dm-0, logical block 155255079\r\nNov 27 23:24:52 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:52 wd02 kernel: Buffer I/O error on device dm-0, logical block 150151196\r\nNov 27 23:24:52 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:52 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:53 wd02 kernel: Buffer I/O error on device dm-0, logical block 80085000\r\nNov 27 23:24:53 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:53 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:53 wd02 kernel: Buffer I/O error on device dm-0, logical block 80085003\r\nNov 27 23:24:53 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:53 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:53 wd02 kernel: Buffer I/O error on device dm-0, logical block 80085038\r\nNov 27 23:24:53 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:53 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:53 wd02 kernel: Buffer I/O error on device dm-0, logical block 80085050\r\nNov 27 23:24:53 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:53 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 27 23:24:53 wd02 kernel: Buffer I/O error on device dm-0, logical block 80085051\r\nNov 27 23:24:53 wd02 kernel: lost page write due to I/O error on dm-0\r\nNov 27 23:24:53 wd02 kernel: sd 2:0:0:0: rejecting I/O to offline device\r\nNov 28 14:11:37 wd02 kernel: klogd 1.4.1, log source = /proc/kmsg started.

Chowroc

每次系统启动都自动同步 md2(sdc2/sdd2)，dmesg 如下：\r\nahci 0000:00:12.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA mode\r\nahci 0000:00:12.0: flags: 64bit ncq ilck pm led clo pmp pio slum part\r\nata1: SATA max UDMA/133 cmd 0xF8846100 ctl 0x0 bmdma 0x0 irq 201\r\nata2: SATA max UDMA/133 cmd 0xF8846180 ctl 0x0 bmdma 0x0 irq 201\r\nata3: SATA max UDMA/133 cmd 0xF8846200 ctl 0x0 bmdma 0x0 irq 201\r\nata4: SATA max UDMA/133 cmd 0xF8846280 ctl 0x0 bmdma 0x0 irq 201\r\nscsi0 : ahci\r\nata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nata1.00: ATA-7, max UDMA/133, 625140335 sectors: LBA48 NCQ (depth 31/32)\r\nata1.00: ata1: dev 0 multi count 16\r\nata1.00: configured for UDMA/133\r\nscsi1 : ahci\r\nata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nata2.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nata2.00: ata2: dev 0 multi count 16\r\nata2.00: configured for UDMA/133\r\nscsi2 : ahci\r\nata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nata3.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nata3.00: ata3: dev 0 multi count 16\r\nata3.00: configured for UDMA/133\r\nscsi3 : ahci\r\nata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)\r\nata4.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 31/32)\r\nata4.00: ata4: dev 0 multi count 16\r\nata4.00: configured for UDMA/133\r\n  Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\n  Type:   Direct-Access                      ANSI SCSI revision: 05\r\nSCSI device sda: 625140335 512-byte hdwr sectors (320072 MB)\r\nsda: Write Protect is off\r\nsda: Mode Sense: 00 3a 00 00\r\nSCSI device sda: drive cache: write back\r\nSCSI device sda: 625140335 512-byte hdwr sectors (320072 MB)\r\nsda: Write Protect is off\r\nsda: Mode Sense: 00 3a 00 00\r\nSCSI device sda: drive cache: write back\r\n sda: sda1 sda2 sda3\r\nsd 0:0:0:0: Attached scsi disk sda\r\n  Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\n  Type:   Direct-Access                      ANSI SCSI revision: 05\r\nSCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdb: Write Protect is off\r\nsdb: Mode Sense: 00 3a 00 00\r\nSCSI device sdb: drive cache: write back\r\nSCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdb: Write Protect is off\r\nsdb: Mode Sense: 00 3a 00 00\r\nSCSI device sdb: drive cache: write back\r\n sdb: sdb1 sdb2 sdb3\r\nsd 1:0:0:0: Attached scsi disk sdb\r\n  Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\n  Type:   Direct-Access                      ANSI SCSI revision: 05\r\nSCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdc: Write Protect is off\r\nsdc: Mode Sense: 00 3a 00 00\r\nSCSI device sdc: drive cache: write back\r\nSCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdc: Write Protect is off\r\nsdc: Mode Sense: 00 3a 00 00\r\nSCSI device sdc: drive cache: write back\r\n sdc: sdc1 sdc2 sdc3\r\nsd 2:0:0:0: Attached scsi disk sdc\r\n  Vendor: ATA       Model: ST3320620AS       Rev: 3.AA\r\n  Type:   Direct-Access                      ANSI SCSI revision: 05\r\nSCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdd: Write Protect is off\r\nsdd: Mode Sense: 00 3a 00 00\r\nSCSI device sdd: drive cache: write back\r\nSCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)\r\nsdd: Write Protect is off\r\nsdd: Mode Sense: 00 3a 00 00\r\nSCSI device sdd: drive cache: write back\r\n sdd: sdd1 sdd2 sdd3\r\nsd 3:0:0:0: Attached scsi disk sdd\r\nInitializing USB Mass Storage driver...\r\nusbcore: registered new driver usb-storage\r\nUSB Mass Storage support registered.\r\ndevice-mapper: ioctl: 4.11.0-ioctl (2006-09-14) initialised: devel@redhat.com[/email]\r\nmd: Autodetecting RAID arrays.\r\nmd: autorun ...\r\nmd: considering sdd2 ...\r\nmd:  adding sdd2 ...\r\nmd: sdd1 has different UUID to sdd2\r\nmd:  adding sdc2 ...\r\nmd: sdc1 has different UUID to sdd2\r\nmd: sdb2 has different UUID to sdd2\r\nmd: sdb1 has different UUID to sdd2\r\nmd: sda2 has different UUID to sdd2\r\nmd: sda1 has different UUID to sdd2\r\nmd: created md2\r\nmd: bind<sdc2>\r\nmd: bind<sdd2>\r\nmd: running: <sdd2><sdc2>\r\nraid1: raid set md2 active with 2 out of 2 mirrors\r\nmd: considering sdd1 ...\r\nmd:  adding sdd1 ...\r\nmd:  adding sdc1 ...\r\nmd: sdb2 has different UUID to sdd1\r\nmd:  adding sdb1 ...\r\nmd: sda2 has different UUID to sdd1\r\nmd:  adding sda1 ...\r\nmd: created md0\r\nmd: bind<sda1>\r\nmd: bind<sdb1>\r\nmd: bind<sdc1>\r\nmd: bind<sdd1>\r\nmd: running: <sdd1><sdc1><sdb1><sda1>\r\nraid1: raid set md0 active with 4 out of 4 mirrors\r\nmd: considering sdb2 ...\r\nmd:  adding sdb2 ...\r\nmd:  adding sda2 ...\r\nmd: created md1\r\nmd: bind<sda2>\r\nmd: bind<sdb2>\r\nmd: running: <sdb2><sda2>\r\nmd: md1: raid array is not clean -- starting background reconstruction\r\nraid1: raid set md1 active with 2 out of 2 mirrors\r\nmd: ... autorun DONE.\r\nmd: syncing RAID array md1\r\nmd: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.\r\nmd: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction.\r\nmd: using 128k window, over a total of 310994176 blocks.\r\nmd: Autodetecting RAID arrays.\r\nmd: autorun ...\r\nmd: ... autorun DONE.\r\nkjournald starting.  Commit interval 5 seconds\r\nEXT3-fs: mounted filesystem with ordered data mode.\r\n......\r\nmd: Autodetecting RAID arrays.\r\nmd: autorun ...\r\nmd: ... autorun DONE.\r\nEXT3 FS on dm-0, internal journal\r\n\r\n然后第一天晚上就开始出现 SCSI 的错误，如 message 所示，第二天登录后发现无法写入，文件系统变成了只读。用 fdisk 发现 sdc 变成了 sde，同时 sdd 也不见了。\r\n\r\n重启机器，结果在启动到这里的时候出错了：\r\nChecking filesystems /dev/VolGroup00/LogVol00 contains a file system with errors, check forced.\r\n/dev/VolGroup00/LogVol00:\r\nInodes that were part of a corrupted orphan linked list found\r\n/dev/VolGroup00/LogVol00:\r\n    UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. \r\n    (i.e., without -a or -p options)                              [FAILED]\r\n只能进入修复模式，将 sdd 从 RAID1 中去除：\r\nsh# mdadm /dev/md2 -r /dev/sdd2，重启后还是有这个问题。只能再次进入修复模式，手工运行 fsck.ext3 /dev/VolGroup00/LogVol00，在修复的过程中，显示自动修复了一些 inode，大概输出是这样的：\r\nPASS 1: ...\r\nInode xxxxxx is found in the orphaned linked list.   FIXED\r\n...\r\n经过很长时间的修复，再次重启系统后才行了。此时仅以 3 块磁盘在运行。\r\n\r\n我比较奇怪的是为什么 UUID 会报告不一致，看上去都是 sdd 这块磁盘。另外，好像每次重启的时候，都会导致第四块磁盘(sdd)重新进行同步，不知道是不是和这个 UUID 不一致有关？