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One of my disks pulled a Houdini (vanished). We had an electrical storm last night. The computer was off, but it was plugged in. It has 3 disks, each has ...
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  1. #1
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    Missing disk...


    One of my disks pulled a Houdini (vanished).

    We had an electrical storm last night. The computer was off, but it was plugged in.

    It has 3 disks, each has OS's on it. 2 will boot, but the 3rd "does not exist", says GRUBloader.

    If the machine powered off without proper dismount, would this be the result? How would I fix this?
    Below is hardware, RED highlight is the question...
    Code:
    chucknb@chucknb-desktop:~$ lshw
    WARNING: you should run this program as super-user.
    chucknb-desktop           
        description: Computer
        width: 32 bits
      *-core
           description: Motherboard
           physical id: 0
         *-memory
              description: System memory
              physical id: 0
              size: 1011MiB
         *-cpu
              product: AMD Sempron(tm)
              vendor: Advanced Micro Devices [AMD]
              physical id: 1
              bus info: cpu@0
              version: 6.8.1
              size: 1050MHz
              width: 32 bits
              capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow up ts
            *-cache:0
                 description: L1 cache
                 physical id: 0
                 size: 128KiB
            *-cache:1
                 description: L2 cache
                 physical id: 1
                 size: 256KiB
         *-pci
              description: Host bridge
              product: nForce2 IGP2
              vendor: nVidia Corporation
              physical id: 100
              bus info: pci@0000:00:00.0
              version: c1
              width: 32 bits
              clock: 66MHz
              configuration: driver=agpgart-nvidia module=nvidia_agp
            *-memory:0 UNCLAIMED
                 description: RAM memory
                 product: nForce2 Memory Controller 0
                 vendor: nVidia Corporation
                 physical id: 0.1
                 bus info: pci@0000:00:00.1
                 version: c1
                 width: 32 bits
                 clock: 66MHz (15.2ns)
                 configuration: latency=0
            *-memory:1 UNCLAIMED
                 description: RAM memory
                 product: nForce2 Memory Controller 4
                 vendor: nVidia Corporation
                 physical id: 0.2
                 bus info: pci@0000:00:00.2
                 version: c1
                 width: 32 bits
                 clock: 66MHz (15.2ns)
                 configuration: latency=0
            *-memory:2 UNCLAIMED
                 description: RAM memory
                 product: nForce2 Memory Controller 3
                 vendor: nVidia Corporation
                 physical id: 0.3
                 bus info: pci@0000:00:00.3
                 version: c1
                 width: 32 bits
                 clock: 66MHz (15.2ns)
                 configuration: latency=0
            *-memory:3 UNCLAIMED
                 description: RAM memory
                 product: nForce2 Memory Controller 2
                 vendor: nVidia Corporation
                 physical id: 0.4
                 bus info: pci@0000:00:00.4
                 version: c1
                 width: 32 bits
                 clock: 66MHz (15.2ns)
                 configuration: latency=0
            *-memory:4 UNCLAIMED
                 description: RAM memory
                 product: nForce2 Memory Controller 5
                 vendor: nVidia Corporation
                 physical id: 0.5
                 bus info: pci@0000:00:00.5
                 version: c1
                 width: 32 bits
                 clock: 66MHz (15.2ns)
                 configuration: latency=0
            *-isa
                 description: ISA bridge
                 product: nForce2 ISA Bridge
                 vendor: nVidia Corporation
                 physical id: 1
                 bus info: pci@0000:00:01.0
                 version: a4
                 width: 32 bits
                 clock: 66MHz
                 capabilities: isa bus_master cap_list
                 configuration: latency=0
            *-serial
                 description: SMBus
                 product: nForce2 SMBus (MCP)
                 vendor: nVidia Corporation
                 physical id: 1.1
                 bus info: pci@0000:00:01.1
                 version: a2
                 width: 32 bits
                 clock: 66MHz
                 capabilities: cap_list
                 configuration: driver=nForce2_smbus latency=0 maxlatency=1 mingnt=3 module=i2c_nforce2
            *-usb:0
                 description: USB Controller
                 product: nForce2 USB Controller
                 vendor: nVidia Corporation
                 physical id: 2
                 bus info: pci@0000:00:02.0
                 version: a4
                 width: 32 bits
                 clock: 66MHz
                 capabilities: ohci bus_master cap_list
                 configuration: driver=ohci_hcd latency=0 maxlatency=1 mingnt=3 module=ohci_hcd
            *-usb:1
                 description: USB Controller
                 product: nForce2 USB Controller
                 vendor: nVidia Corporation
                 physical id: 2.1
                 bus info: pci@0000:00:02.1
                 version: a4
                 width: 32 bits
                 clock: 66MHz
                 capabilities: ohci bus_master cap_list
                 configuration: driver=ohci_hcd latency=0 maxlatency=1 mingnt=3 module=ohci_hcd
            *-usb:2
                 description: USB Controller
                 product: nForce2 USB Controller
                 vendor: nVidia Corporation
                 physical id: 2.2
                 bus info: pci@0000:00:02.2
                 version: a4
                 width: 32 bits
                 clock: 66MHz
                 capabilities: ehci bus_master cap_list
                 configuration: driver=ehci_hcd latency=0 maxlatency=1 mingnt=3 module=ehci_hcd
            *-network
                 description: Ethernet interface
                 product: nForce2 Ethernet Controller
                 vendor: nVidia Corporation
                 physical id: 4
                 bus info: pci@0000:00:04.0
                 logical name: eth0
                 version: a1
                 serial: 00:e0:4c:ba:36:9f
                 width: 32 bits
                 clock: 66MHz
                 capabilities: bus_master cap_list ethernet physical
                 configuration: broadcast=yes driver=forcedeth driverversion=0.61 latency=0 maxlatency=20 mingnt=1 module=forcedeth multicast=yes
            *-multimedia
                 description: Multimedia audio controller
                 product: nForce2 AC97 Audio Controler (MCP)
                 vendor: nVidia Corporation
                 physical id: 6
                 bus info: pci@0000:00:06.0
                 version: a1
                 width: 32 bits
                 clock: 66MHz
                 capabilities: bus_master cap_list
                 configuration: driver=Intel ICH latency=0 maxlatency=5 mingnt=2 module=snd_intel8x0
            *-pci:0
                 description: PCI bridge
                 product: nForce2 External PCI Bridge
                 vendor: nVidia Corporation
                 physical id: 8
                 bus info: pci@0000:00:08.0
                 version: a3
                 width: 32 bits
                 clock: 66MHz
                 capabilities: pci normal_decode bus_master
               *-storage         THE MISSING DISK IS ON THIS CARD
                    description: RAID bus controller
                    product: PCI0680 Ultra ATA-133 Host Controller
                    vendor: Silicon Image, Inc.
                    physical id: 8
                    bus info: pci@0000:01:08.0
                    version: 02
                    width: 32 bits
                    clock: 33MHz
                    capabilities: storage bus_master cap_list
                    configuration: driver=pata_sil680 latency=32 module=pata_sil680
               *-network
                    description: Wireless interface
                    product: AR2413 802.11bg NIC
                    vendor: Atheros Communications Inc.
                    physical id: a
                    bus info: pci@0000:01:0a.0
                    logical name: wifi0
                    version: 01
                    serial: 00:14:78:ed:a5:b7
                    width: 32 bits
                    clock: 33MHz
                    capabilities: bus_master cap_list logical ethernet physical wireless
                    configuration: broadcast=yes driver=ath_pci ip=192.168.0.103 latency=168 maxlatency=28 mingnt=10 module=ath_pci multicast=yes wireless=IEEE 802.11g
            *-ide
                 description: IDE interface
                 product: nForce2 IDE
                 vendor: nVidia Corporation
                 physical id: 9
                 bus info: pci@0000:00:09.0
                 logical name: scsi2
                 version: a2
                 width: 32 bits
                 clock: 66MHz
                 capabilities: ide bus_master cap_list emulated
                 configuration: driver=pata_amd latency=0 maxlatency=1 mingnt=3 module=pata_amd
               *-cdrom:0
                    description: CD-R/CD-RW writer
                    product: CR-4804TE
                    vendor: MITSUMI
                    physical id: 0.0.0
                    bus info: scsi@2:0.0.0
                    logical name: /dev/cdrom2
                    logical name: /dev/scd0
                    logical name: /dev/sr0
                    version: 2.6C
                    serial: [MITSUMI CR-4804TE       2.6C
                    capabilities: removable audio cd-r cd-rw
                    configuration: ansiversion=5 status=open
               *-cdrom:1
                    description: DVD reader
                    product: DVD D  DH16D2P
                    vendor: ATAPI
                    physical id: 0.1.0
                    bus info: scsi@2:0.1.0
                    logical name: /dev/scd1
                    logical name: /dev/sr1
                    version: HP55
                    capabilities: removable audio dvd
                    configuration: ansiversion=5 status=open
            *-pci:1
                 description: PCI bridge
                 product: nForce2 AGP
                 vendor: nVidia Corporation
                 physical id: 1e
                 bus info: pci@0000:00:1e.0
                 version: c1
                 width: 32 bits
                 clock: 66MHz
                 capabilities: pci normal_decode bus_master
               *-display
                    description: VGA compatible controller
                    product: NV20 [GeForce3 Ti 500]
                    vendor: nVidia Corporation
                    physical id: 0
                    bus info: pci@0000:02:00.0
                    version: a3
                    width: 32 bits
                    clock: 66MHz
                    capabilities: vga_controller bus_master cap_list
                    configuration: driver=nvidia latency=248 maxlatency=1 mingnt=5 module=nvidia
      *-scsi
           physical id: 1
           bus info: scsi@4
           logical name: scsi4
           capabilities: scsi-host
           configuration: driver=usb-storage
    chucknb@chucknb-desktop:~$

  2. #2
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    Quote Originally Posted by buccaneere View Post
    If the machine powered off without proper dismount, would this be the result? How would I fix this?
    No. "Dismount" is a filesystem operation (data) and has nothing to do with the physical operation/status of the HDD. If the drive doesn't show up in a HW or BIOS scan, it's toast.

  3. #3
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    BIOS scan? Is this a function of BIOS [setup] configuration? Or a function of GRUB?

    EDIT:
    I've never seen it in BIOS, it's on a Raidbus (PCI) card. It's not on Primary IDE master or slave, or secondary IDE master or slave.

  4. #4
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    BIOS

    The initial function of the BIOS is to identify, test, and initialize system devices such as the video display card, hard disk, and floppy disk and other hardware.
    GRUB is a bootloader and nothing more.

  5. #5
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    Other post edited...

    EDIT:
    I've never seen it in BIOS, it's on a Raidbus (PCI) card. It's not on Primary IDE master or slave, or secondary IDE master or slave.

  6. #6
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    Nearly any bootable card will post following the motherboard's BIOS initialization - I have never seen one that doesn't. Most also have an option to enter the configuration menu for the card as well during initialization.

    Google is your friend.

    Silicon Image 0680 Docs

    From "medley manual:"

    Creating and deleting RAID sets is a function found in the BIOS. During bootup, the following message
    will appear, pausing for a few moments to allow the user to choose what to do:
    Press F3 to enter RAID utility
    This indicates that the card does post and does show up following the motherboard's BIOS routines.

  7. #7
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    Raid function IS recognized, so card is recognized.

    Now, I've pulled the disk, plugged it into an external USB enclosure, powered up, and the disk spun up. Plugged it into another machine, powered THAT machine up, and the GRUB menu from the EXTERNAL disk displayed.

    SO, since the RAID function was recognized on the other machine, it is either a faulty molex connector (PSU), OR, a bad IDE cable).

    No testing besides switching parts, I presume...

  8. #8
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    Yup - just like Houdini - it's re-appeared again in the original machine.

    Plugged it back in, and GRUB loaded up like nothin' ever was wrong.


  9. #9
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    Many "wierd" things can happen electrically.

    It could be that the card is failing, it could be that the HDD is failing, or it could be a random strange event and it runs fine for years to come.

    I would watch the messages file for any HW messages and turn on the SMART daemon to make sure the HDD is monitored.

  10. #10
    Linux Guru Rubberman's Avatar
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    Something similar happened to me this weekend. We had a lengthy power failure and after some time my UPS shut off, resulting in a hard power down of the system, while I was in the process of shutting it down rationally of course. Fortunately, the damage to the file systems was repairable, but for some reason the USB hub in one of my monitors got toasted. I had to spend about 3 hours on the line with Dell to convince them that the USB hub was indeed toast and they need to send me a new monitor (it's still under warranty, fortunately). I'm thinking of sending them a bill for wasting my time...
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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