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power interruption -> renamed USB disk



I have a SATA disk in an external USB docking station.  The computer it
is attached to is on UPS, but the external disk has only surge
protection.

When the power goes out for a moment, the disk, which was /dev/sdc,
seems to come back as /dev/sdd.  The disk has a partition that is part
of an LVM volume group, and the file system on the disk is inaccessible.

I've had to restart the system to get the disk back.

Is there a better way (aside from getting  the disk on UPS)?

Debian Lenny (mostly), 2.6.26-2-686 stock Debian kernel on Pentium 4
chip w/hyperthreading.  The disk uses the GPT partition format.

Most recent incident:
<log>
#power fails
Mar  7 11:21:18 corn kernel: [182529.931888] ethfast: Link is Down
Mar  7 11:21:18 corn kernel: [182530.140155] usb 5-3: USB disconnect, address 4
Mar  7 11:21:18 corn kernel: [182530.140155] usb 5-3.1: USB disconnect, address 7
Mar  7 11:21:18 corn kernel: [182530.140155] usb 5-3.2: USB disconnect, address 8
Mar  7 11:21:18 corn kernel: [182530.140155] usblp0: removed
Mar  7 11:21:18 corn kernel: [182530.375701] usb 5-4: USB disconnect, address 5
#power resumes
Mar  7 11:21:21 corn kernel: [182533.121591] usb 5-3: new high speed USB device using ehci_hcd and address 9
Mar  7 11:21:21 corn kernel: [182533.179788] hub 5-0:1.0: unable to enumerate USB device on port 3
Mar  7 11:21:30 corn kernel: [182542.755370] __ratelimit: 4 messages suppressed
Mar  7 11:21:30 corn kernel: [182542.755379] Buffer I/O error on device dm-15, logical block 8210
Mar  7 11:21:30 corn kernel: [182542.755384] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.755480] ReiserFS: dm-15: warning: journal-837: IO error during journal replay
Mar  7 11:21:30 corn kernel: [182542.755480] REISERFS: abort (device dm-15): Write error while updating journal header in flush_journal_list
Mar  7 11:21:30 corn kernel: [182542.755480] REISERFS: Aborting journal for filesystem on dm-15
Mar  7 11:21:30 corn kernel: [182542.755480] Buffer I/O error on device dm-15, logical block 418
Mar  7 11:21:30 corn kernel: [182542.755480] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 419
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 420
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 421
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 422
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 423
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 424
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 425
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.761971] Buffer I/O error on device dm-15, logical block 426
Mar  7 11:21:30 corn kernel: [182542.761971] lost page write due to I/O error on dm-15
Mar  7 11:21:30 corn kernel: [182542.762384] ReiserFS: dm-15: warning: clm-6006: writing inode 2353029 on readonly FS
Mar  7 11:21:30 corn kernel: [182543.243725] usb 5-3: new high speed USB device using ehci_hcd and address 10
Mar  7 11:21:30 corn kernel: [182543.392646] usb 5-3: configuration #1 chosen from 1 choice
Mar  7 11:21:30 corn kernel: [182543.394112] hub 5-3:1.0: USB hub found
Mar  7 11:21:30 corn kernel: [182543.395207] hub 5-3:1.0: 4 ports detected
Mar  7 11:21:30 corn kernel: [182543.501289] usb 5-3: New USB device found, idVendor=1a40, idProduct=0101
Mar  7 11:21:30 corn kernel: [182543.501298] usb 5-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Mar  7 11:21:30 corn kernel: [182543.501303] usb 5-3: Product: USB 2.0 Hub [MTT]
Mar  7 11:21:31 corn kernel: [182543.752650] usb 5-4: new high speed USB device using ehci_hcd and address 11
Mar  7 11:21:31 corn kernel: [182543.828137] ethfast: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Mar  7 11:21:31 corn kernel: [182543.828137] ethfast: 10/100 speed: disabling TSO
Mar  7 11:21:31 corn kernel: [182543.895490] usb 5-4: configuration #1 chosen from 1 choice
Mar  7 11:21:31 corn kernel: [182543.899493] usb 5-4: New USB device found, idVendor=04b8, idProduct=011e
Mar  7 11:21:31 corn kernel: [182543.899493] usb 5-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Mar  7 11:21:31 corn kernel: [182543.899493] usb 5-4: Product: EPSON Scanner
Mar  7 11:21:31 corn kernel: [182543.899493] usb 5-4: Manufacturer: EPSON
Mar  7 11:21:33 corn kernel: [182546.073233] usb 5-3.2: new high speed USB device using ehci_hcd and address 12
Mar  7 11:21:33 corn kernel: [182546.172447] usb 5-3.2: configuration #1 chosen from 1 choice
Mar  7 11:21:33 corn kernel: [182546.172447] usblp0: USB Bidirectional printer dev 12 if 0 alt 0 proto 2 vid 0x04F9 pid 0x0022
Mar  7 11:21:33 corn kernel: [182546.173904] usb 5-3.2: New USB device found, idVendor=04f9, idProduct=0022
Mar  7 11:21:33 corn kernel: [182546.173904] usb 5-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar  7 11:21:33 corn kernel: [182546.173904] usb 5-3.2: Product: HL-5150D
Mar  7 11:21:33 corn kernel: [182546.173904] usb 5-3.2: Manufacturer: Brother
Mar  7 11:21:33 corn kernel: [182546.173904] usb 5-3.2: SerialNumber: K4J587961
Mar  7 11:21:45 corn kernel: [182558.721983] usb 5-3.1: new high speed USB device using ehci_hcd and address 13
Mar  7 11:21:45 corn kernel: [182558.831699] usb 5-3.1: configuration #1 chosen from 1 choice
Mar  7 11:21:45 corn kernel: [182558.840748] scsi3 : SCSI emulation for USB Mass Storage devices
Mar  7 11:21:45 corn kernel: [182558.841637] usb-storage: device found at 13
Mar  7 11:21:45 corn kernel: [182558.841637] usb-storage: waiting for device to settle before scanning
Mar  7 11:21:45 corn kernel: [182558.843187] usb 5-3.1: New USB device found, idVendor=05e3, idProduct=0718
Mar  7 11:21:45 corn kernel: [182558.843187] usb 5-3.1: New USB device strings: Mfr=0, Product=1, SerialNumber=2
Mar  7 11:21:45 corn kernel: [182558.843187] usb 5-3.1: Product: USB Storage
Mar  7 11:21:45 corn kernel: [182558.843187] usb 5-3.1: SerialNumber: 000000000033
Mar  7 11:21:50 corn kernel: [182564.109577] usb-storage: device scan complete
Mar  7 11:21:50 corn kernel: [182564.120422] scsi 3:0:0:0: Direct-Access     WDC WD20 EARS-00MVWB0     0009 PQ: 0 ANSI: 0
Mar  7 11:21:50 corn kernel: [182564.120864] sd 3:0:0:0: [sdd] 3907029164 512-byte hardware sectors (2000399 MB)
Mar  7 11:21:50 corn kernel: [182564.121231] sd 3:0:0:0: [sdd] Write Protect is off
Mar  7 11:21:50 corn kernel: [182564.121238] sd 3:0:0:0: [sdd] Mode Sense: 03 00 00 00
Mar  7 11:21:50 corn kernel: [182564.121244] sd 3:0:0:0: [sdd] Assuming drive cache: write through
Mar  7 11:21:50 corn kernel: [182564.122131] sd 3:0:0:0: [sdd] 3907029164 512-byte hardware sectors (2000399 MB)
Mar  7 11:21:50 corn kernel: [182564.123130] sd 3:0:0:0: [sdd] Write Protect is off
Mar  7 11:21:50 corn kernel: [182564.123137] sd 3:0:0:0: [sdd] Mode Sense: 03 00 00 00
Mar  7 11:21:50 corn kernel: [182564.123141] sd 3:0:0:0: [sdd] Assuming drive cache: write through
Mar  7 11:21:50 corn kernel: [182564.123147]  sdd: sdd1 sdd2
Mar  7 11:21:50 corn kernel: [182564.181578] sd 3:0:0:0: [sdd] Attached SCSI disk
Mar  7 11:21:59 corn kernel: [182573.966058] ethfast: Link is Down
Mar  7 11:22:01 corn kernel: [182576.033698] ethfast: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Mar  7 11:22:01 corn kernel: [182576.033698] ethfast: 10/100 speed: disabling TSO
Mar  7 11:38:38 corn kernel: [183622.652570] ReiserFS: dm-15: warning: zam-7001: io error in reiserfs_find_entry
Mar  7 11:43:31 corn kernel: [183936.863472] fuse exit
Mar  7 11:43:33 corn kernel: [183938.589854] nfsd: last server has exited
Mar  7 11:43:33 corn kernel: [183938.614722] nfsd: unexporting all filesystems
</log>


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