ファイルサーバHDDが物理的にダメになりました

またファイルサーバに書き込めなくなりました。
同じ手順で復旧・・・しようとしても失敗しました。

# service smb stop
SMB サービスを停止中: [ OK ]
NMB サービスを停止中: [ OK ]
# umount /dev/sdb1
# fsck -fy /dev/sdb1
fsck 1.39 (29-May-2006)
e2fsck 1.39 (29-May-2006)
fsck.ext3: No such device or address while trying to open /dev/sdb1
Possibly non-existent or swap device?
#

こんな感じでfsckを実行するとデバイスがないといわれました。

# ls /dev
MAKEDEV loop0 nvram ram11 random shm tty15 tty28 tty40 tty53 tty9 usbdev3.1_ep81 vcs4
X0R loop1 oldmem ram12 rawctl snapshot tty16 tty29 tty41 tty54 ttyS0 usbdev4.1_ep00 vcs5
bus loop2 parport0 ram13 root stderr tty17 tty3 tty42 tty55 ttyS1 usbdev4.1_ep81 vcs6
console loop3 parport1 ram14 rtc stdin tty18 tty30 tty43 tty56 ttyS2 usbdev5.1_ep00 vcsa
core loop4 parport2 ram15 sda stdout tty19 tty31 tty44 tty57 ttyS3 usbdev5.1_ep81 vcsa1
cpu loop5 parport3 ram2 sda1 systty tty2 tty32 tty45 tty58 urandom usbdev5.2_ep00 vcsa2
disk loop6 port ram3 sda2 tty tty20 tty33 tty46 tty59 usbdev1.1_ep00 usbdev5.2_ep81 vcsa3
fd loop7 ppp ram4 sda3 tty0 tty21 tty34 tty47 tty6 usbdev1.1_ep81 usbdev5.3_ep00 vcsa4
full mapper ptmx ram5 sdb tty1 tty22 tty35 tty48 tty60 usbdev1.2_ep00 usbdev5.3_ep81 vcsa5
hpet mcelog pts ram6 sdc tty10 tty23 tty36 tty49 tty61 usbdev1.2_ep02 usbdev5.3_ep82 vcsa6
initctl md0 ram ram7 sdc1 tty11 tty24 tty37 tty5 tty62 usbdev1.2_ep81 vcs zero
input mem ram0 ram8 sg0 tty12 tty25 tty38 tty50 tty63 usbdev2.1_ep00 vcs1
kmsg net ram1 ram9 sg1 tty13 tty26 tty39 tty51 tty7 usbdev2.1_ep81 vcs2
log null ram10 ramdisk sg2 tty14 tty27 tty4 tty52 tty8 usbdev3.1_ep00 vcs3

lsしても見つからないです。
アンマウントした瞬間に消えてしまったのか・・・。
syslogを見てみると22日の時点でsambaがあやしいログを出していて25日の朝まででてます。
しかしよく見るとこれはwindowsのエクスプローラからsambaのフォルダを開いたままwindowsをスリープにしたタイミングなので特に異常ではないようです。
192.168.0.3はwindowsマシンのipです。

Jan 22 10:37:02 localhost smbd[15771]: [2012/01/22 10:37:02, 0] lib/util_sock.c:read_data(540)
Jan 22 10:37:03 localhost smbd[15771]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 22 10:37:03 localhost smbd[15771]: [2012/01/22 10:37:03, 0] lib/util_sock.c:write_data(568)
Jan 22 10:37:03 localhost smbd[15771]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 22 10:37:03 localhost smbd[15771]: [2012/01/22 10:37:03, 0] lib/util_sock.c:send_smb(767)
Jan 22 10:37:03 localhost smbd[15771]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 23 01:00:31 localhost smbd[21311]: [2012/01/23 01:00:31, 0] smbd/nttrans.c:call_nt_transact_ioctl(2466)
Jan 23 01:00:31 localhost smbd[21311]: call_nt_transact_ioctl(0x90078): Currently not implemented.
Jan 23 03:39:38 localhost smbd[21311]: [2012/01/23 03:39:38, 0] lib/util_sock.c:read_data(540)
Jan 23 03:39:38 localhost smbd[21311]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 23 03:39:38 localhost smbd[21311]: [2012/01/23 03:39:38, 0] lib/util_sock.c:write_data(568)
Jan 23 03:39:38 localhost smbd[21311]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 23 03:39:38 localhost smbd[21311]: [2012/01/23 03:39:38, 0] lib/util_sock.c:send_smb(767)
Jan 23 03:39:38 localhost smbd[21311]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 23 10:31:43 localhost smbd[31290]: [2012/01/23 10:31:43, 0] lib/util_sock.c:read_data(540)
Jan 23 10:31:43 localhost smbd[31290]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 23 10:31:43 localhost smbd[31290]: [2012/01/23 10:31:43, 0] lib/util_sock.c:write_data(568)
Jan 23 10:31:43 localhost smbd[31290]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 23 10:31:43 localhost smbd[31290]: [2012/01/23 10:31:43, 0] lib/util_sock.c:send_smb(767)
Jan 23 10:31:43 localhost smbd[31290]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 24 00:32:12 localhost smbd[5657]: [2012/01/24 00:32:12, 0] lib/util_sock.c:read_data(540)
Jan 24 00:32:12 localhost smbd[5657]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 24 00:32:12 localhost smbd[5657]: [2012/01/24 00:32:12, 0] lib/util_sock.c:write_data(568)
Jan 24 00:32:12 localhost smbd[5657]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 24 00:32:12 localhost smbd[5657]: [2012/01/24 00:32:12, 0] lib/util_sock.c:send_smb(767)
Jan 24 00:32:12 localhost smbd[5657]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 24 10:40:40 localhost smbd[12171]: [2012/01/24 10:40:40, 0] lib/util_sock.c:read_data(540)
Jan 24 10:40:40 localhost smbd[12171]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 24 10:40:40 localhost smbd[12171]: [2012/01/24 10:40:40, 0] lib/util_sock.c:write_data(568)
Jan 24 10:40:40 localhost smbd[12171]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 24 10:40:40 localhost smbd[12171]: [2012/01/24 10:40:40, 0] lib/util_sock.c:send_smb(767)
Jan 24 10:40:40 localhost smbd[12171]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 24 21:47:41 localhost smbd[19151]: [2012/01/24 21:47:41, 0] lib/util_sock.c:read_data(540)
Jan 24 21:47:41 localhost smbd[19151]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = ホストへの経路がありません
Jan 24 21:47:41 localhost smbd[19151]: [2012/01/24 21:47:41, 0] lib/util_sock.c:write_data(568)
Jan 24 21:47:41 localhost smbd[19151]: write_data: write failure in writing to client 192.168.0.3. Error パイプが切断されました
Jan 24 21:47:41 localhost smbd[19151]: [2012/01/24 21:47:41, 0] lib/util_sock.c:send_smb(767)
Jan 24 21:47:41 localhost smbd[19151]: Error writing 75 bytes to client. -1. (パイプが切断されました)
Jan 25 10:34:25 localhost smbd[25049]: [2012/01/25 10:34:25, 0] lib/util_sock.c:read_data(540)
Jan 25 10:34:25 localhost smbd[25049]: read_data: read failure for 4 bytes to client 192.168.0.3. Error = 接続が相手からリセットされました

しかしその後の25日の13時頃からのログが危険です。
過去に何度も見た奴です。
この時間帯はデイリーのミラーリングのためのrsyncが実行中なのでそいつが動いた瞬間に出たもののようです。

Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: failed to read native max address (err_mask=0x1)
Jan 25 13:02:10 localhost kernel: ata1.00: HPA support seems broken, skipping HPA handling
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:a7:00:78/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:a7:00:78/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1.00: configured for UDMA/133 (device error ignored)
Jan 25 13:02:10 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x08000002
Jan 25 13:02:10 localhost kernel: sdb: Current [descriptor]: sense key: Aborted Command
Jan 25 13:02:10 localhost kernel: Add. Sense: No additional sense information
Jan 25 13:02:10 localhost kernel:
Jan 25 13:02:10 localhost kernel: Descriptor sense data with sense descriptors (in hex):
Jan 25 13:02:10 localhost kernel: 72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00
Jan 25 13:02:10 localhost kernel: ac 78 00 a7
Jan 25 13:02:10 localhost kernel: end_request: I/O error, dev sdb, sector 2893545639
Jan 25 13:02:10 localhost kernel: printk: 78 messages suppressed.
Jan 25 13:02:10 localhost kernel: Buffer I/O error on device sdb1, logical block 361693197
Jan 25 13:02:10 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:10 localhost kernel: ata1: EH complete
Jan 25 13:02:10 localhost kernel: ata1.00: limiting speed to UDMA/100:PIO4
Jan 25 13:02:10 localhost kernel: ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
Jan 25 13:02:10 localhost kernel: ata1.00: BMDMA stat 0x65
Jan 25 13:02:10 localhost kernel: ata1.00: cmd 35/00:08:4f:00:7c/00:00:ac:00:00/e0 tag 0 dma 4096 out
Jan 25 13:02:10 localhost kernel: res 61/04:08:4f:00:7c/04:00:ac:00:00/e0 Emask 0x1 (device error)
Jan 25 13:02:10 localhost kernel: ata1.00: status: { DRDY DF ERR }
Jan 25 13:02:10 localhost kernel: ata1.00: error: { ABRT }
Jan 25 13:02:10 localhost kernel: ata1: soft resetting link
Jan 25 13:02:15 localhost kernel: ata1: link is slow to respond, please be patient (ready=0)
Jan 25 13:02:16 localhost kernel: ata1.00: failed to set xfermode (err_mask=0x1)
Jan 25 13:02:16 localhost kernel: ata1: failed to recover some devices, retrying in 5 secs
Jan 25 13:02:21 localhost kernel: ata1: soft resetting link
Jan 25 13:02:21 localhost kernel: ata1.00: failed to set xfermode (err_mask=0x1)
Jan 25 13:02:21 localhost kernel: ata1.00: limiting speed to UDMA/100:PIO3
Jan 25 13:02:21 localhost kernel: ata1: failed to recover some devices, retrying in 5 secs
Jan 25 13:02:26 localhost kernel: ata1: soft resetting link
Jan 25 13:02:26 localhost kernel: ata1.00: failed to set xfermode (err_mask=0x1)
Jan 25 13:02:26 localhost kernel: ata1.00: disabled
Jan 25 13:02:27 localhost kernel: ata1: EH complete
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2893807695
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361725954
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2893807759
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361725962
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894069839
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361758722
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894069879
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361758727
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894069927
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361758733
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894331983
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361791490
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894332023
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361791495
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894594127
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361824258
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894594167
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361824263
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894594223
Jan 25 13:02:27 localhost kernel: Buffer I/O error on device sdb1, logical block 361824270
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894856271
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2894856311
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895118415
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895118463
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895380559
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895380599
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895642703
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895642743
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895904847
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895904895
Jan 25 13:02:27 localhost kernel: sdb : READ CAPACITY failed.
Jan 25 13:02:27 localhost kernel: sdb : status=0, message=00, host=4, driver=00
Jan 25 13:02:27 localhost kernel: sdb : sense not available.
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2895904935
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2896166991
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2896167031
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2896167055
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2896429135
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2897215567
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2897477711
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2897739855
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2898001999
Jan 25 13:02:27 localhost kernel: sdb: Write Protect is off
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2898002015
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2898788431
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2899050575
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2899312719
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2900099151
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2900623439
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2901147727
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2901672015
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2902196303
Jan 25 13:02:27 localhost kernel: sdb: asking for cache data failed
Jan 25 13:02:27 localhost kernel: sdb: assuming drive cache: write through
Jan 25 13:02:27 localhost kernel: sdb: detected capacity change from 1500301910016 to 0
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2903507023
Jan 25 13:02:27 localhost kernel: sd 1:0:0:0: SCSI error: return code = 0x00040000
Jan 25 13:02:27 localhost kernel: end_request: I/O error, dev sdb, sector 2904555599
Jan 25 13:02:27 localhost kernel: lost page write due to I/O error on sdb1

なんかもうセクタがどうとか言ってるので本当に物理的にダメなんだろうなあと思ってぐぐってみたら

カーネルのブロックデバイスレイヤのI/O終了処理が失敗したというメッセージ - ZDNet Japan

ファイルシステムやディスクのセクタが損傷している可能性がある。また、ディスクまでの経路上のハード的な損害があるかもしれない。ディスクの交換が必要。対応策としてはfsck -cにて損傷する個所の修復を試せるが、永久策ではない。

ということらしい。もう壊れましたな。

なお、smb止めたりアンマウントした時のログはこんな感じです。

Jan 26 08:08:38 localhost nmbd[2894]: [2012/01/26 08:08:38, 0] nmbd/nmbd.c:terminate(58)
Jan 26 08:08:38 localhost nmbd[2894]: Got SIGTERM: going down...
Jan 26 08:08:48 localhost kernel: ext3_abort called.
Jan 26 08:08:48 localhost kernel: EXT3-fs error (device sdb1): ext3_put_super: Couldn't clean up the journal
Jan 26 08:09:00 localhost kernel: sdb : READ CAPACITY failed.
Jan 26 08:09:00 localhost kernel: sdb : status=0, message=00, host=4, driver=00
Jan 26 08:09:00 localhost kernel: sdb : sense not available.
Jan 26 08:09:00 localhost kernel: sdb: Write Protect is off
Jan 26 08:09:00 localhost kernel: sdb: asking for cache data failed
Jan 26 08:09:00 localhost kernel: sdb: assuming drive cache: write through

週末にさらに大容量のHDDを買いに行ってきます。