Talk:How to hotswap Ultrabay devices

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Recent Ubuntu versions

I think, it must be mentioned that hotswapping Ultrabay devices using recent distros is by far not that hard as before. I'm using Ubuntu 9.04 on Z61m and in my case hotswapping Ultrabay DVD-RW works out-of-the-box without any scripts or whatsoever. The article however suggests that one always needs some ejecting scripts which might confuse certain users. So it would be nice to add something like: "If you are using Ubuntu *.** everything should work out-of-the-box"

--Bombenbach 12:01, 9 August 2009 (UTC)

HAL script

If the script works, your lshal output should contain something similar to this. In this case the Ultrabay device was a second HDD (/dev/sdb).

Note that in the example, storage.hotpluggable = true while before it was false, so the script worked.

udi = '/org/freedesktop/Hal/devices/storage_serial_SATA_HTS726060M9AT00_MRH453M4H11ARB'
  block.device = '/dev/sdb'  (string)
  block.is_volume = false  (bool)
  block.major = 8  (0x8)  (int)
  block.minor = 16  (0x10)  (int)
  block.storage_device = '/org/freedesktop/Hal/devices/storage_serial_SATA_HTS726060M9AT00_MRH453M4H11ARB'  (string)
  info.capabilities = {'storage', 'block'} (string list)
  info.category = 'storage'  (string)
  info.parent = '/org/freedesktop/Hal/devices/pci_8086_24ca_scsi_host_0_scsi_device_lun0'  (string)
  info.product = 'HTS726060M9AT00'  (string)
  info.udi = '/org/freedesktop/Hal/devices/storage_serial_SATA_HTS726060M9AT00_MRH453M4H11ARB'  (string)
  info.vendor = 'ATA'  (string)
  linux.hotplug_type = 3  (0x3)  (int)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1f.1/host1/target1:0:0/1:0:0:0/block/sdb'  (string)
  storage.automount_enabled_hint = true  (bool)
  storage.bus = 'pci'  (string)
  storage.drive_type = 'disk'  (string)
  storage.firmware_version = 'MH4O'  (string)
  storage.hotpluggable = true  (bool)
  storage.lun = 0  (0x0)  (int)
  storage.media_check_enabled = false  (bool)
  storage.model = 'HTS726060M9AT00'  (string)
  storage.no_partitions_hint = false  (bool)
  storage.originating_device = '/org/freedesktop/Hal/devices/computer'  (string)
  storage.partitioning_scheme = 'mbr'  (string)
  storage.removable = false  (bool)
  storage.removable.media_available = true  (bool)
  storage.removable.media_size = 60011642880  (0xdf8f90000)  (uint64)
  storage.requires_eject = false  (bool)
  storage.serial = 'SATA_HTS726060M9AT00_MRH453M4H11ARB'  (string)
  storage.size = 60011642880  (0xdf8f90000)  (uint64)
  storage.vendor = 'ATA'  (string)
Known South Bridge PCI IDs
ID ThinkPad model South Bridge chip (for Ultrabay) parent device (host_0, lun0 = 2nd ATA controller, master device)
8086_7111 A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p, T20, T21, T22, X20, X21 Intel 82371AB/EB/MB PIIX4 IDE /org/freedesktop/Hal/devices/pci_8086_7111_scsi_host_0_scsi_device_lun0
8086_248a T23, T30, X22, X23, X24, X30 Intel 82801CAM IDE U100 (rev 2) /org/freedesktop/Hal/devices/pci_8086_248a_scsi_host_0_scsi_device_lun0
8086_248a A30, A30p, A31, A31p Intel 82801CAM IDE U100 (rev 2) /org/freedesktop/Hal/devices/pci_8086_248a_scsi_host_scsi_device_lun0_0
/org/freedesktop/Hal/devices/pci_8086_248a_scsi_host_0_scsi_device_lun0
8086_24ca R50, R51, T40, T40p, T41, T41p, T42, T42p, X31, X32, X40 Intel 82801DBM (ICH4-M) /org/freedesktop/Hal/devices/pci_8086_24ca_scsi_host_0_scsi_device_lun0
8086_2653 R52, T43, T43p, X41, Z60m, Z60t Intel 82801FBM (ICH6-M) /org/freedesktop/Hal/devices/pci_8086_2653_scsi_host_scsi_device_lun0
8086_27c4 R60, X60 Intel 82801GBM (ICH7 Family) /org/freedesktop/Hal/devices/pci_8086_27c4_scsi_host_scsi_device_lun0
8086_27df T60, T60p, Z61m, Z61t, Z61p Intel 82801GBM/GHM (ICH7 Family) /org/freedesktop/Hal/devices/pci_8086_27df_scsi_host_scsi_device_lun0
8086_2850 R61, T61, T61p, X300 Intel 82801H (ICH8 Family) /org/freedesktop/Hal/devices/pci_8086_2850_scsi_host_scsi_device_lun0
8086_2929 R400, R500, T400, T500, W500, W700, X200, X301 Intel 82801I ICH9 Family /org/freedesktop/Hal/devices/pci_8086_2929_scsi_host_0_scsi_device_lun0

lshal output

Please place your lshal output here if you had problems

lshal of my A31: http://nopaste.org/p/a4p6x9tSob

Thanks! If I understand the output correctly you have one Toshiba Combo DVD-ROM/CD-RW R2002 in one ultrabay connected as slave to the primary IDE controller, and one Toshiba DVD-ROM C2512 in the second ultrabay connected as master to the secondary IDE controller. Can you confirm? I have added it to the table.


I have a Thinkpad T43 and I found out from my lshal output that I had to use parent device: pci_8086_2653_scsi_host_0_scsi_device_lun0 instead of pci_8086_2653_scsi_host_scsi_device_lun0 (notice the added 0). This is the ultrabay, however, the internal disk still use the "original" parent device (the one without the 0). I think this information should be added to the table. Specs: Thinkpad T43 (machine type 2668), Mandriva One 2009.1, haldaemon 0.5.12


Thanks, it is possible that you have AHCI mode disabled in the BIOS for your HDD? --Tonko 11:00, 31 July 2009 (UTC)

bash script for hotswapping UltraBay

Here is my script for hotswapping ultrabay, is more complex, supports swap partition on drive in ultrabay, check holders (useful, when you are using luks) and more :)

Help needed
Please test on difrent models

ultrabay.sh

#!/bin/bash
SCSI_DEVICE=""
FORCE_SLEEP="1"
QUIET="0"
SYSLOG="0"
BEEP="0"

Message()
{
    MESSAGE="${0/*\//}: $*"
    if [ "$QUIET" = "0" ]; then
        echo "$MESSAGE"
    fi
    if [ "$SYSLOG" != "0" ]; then
        /usr/bin/logger "$MESSAGE"
    fi
    true
}

Exit()
{
    case "$1" in
        "fail")
            [ $BEEP != "0" ] && echo 2 > /proc/acpi/ibm/beep
            exit 1
        ;;
        "success")
            [ $BEEP != "0" ] && echo 12 > /proc/acpi/ibm/beep
            exit 0
        ;;
    esac
}

Usage()
{
    echo "usage: ${0/*\/} [options]"
    echo "options:"
    echo "    -d <path>  SCSI device (required)"
    echo "    -s         Ignore fail when putting drive to sleep"
    echo "    -q         No messages"
    echo "    -l         Use syslog for messages (-q has no effect)"
    echo "    -b         Use beep for notification (-q has no effect)"
    exit 1
}

Block2Device()
{
    /bin/readlink -e "/dev/block/$1"    
}

IsSwap()
{
    /sbin/swapon -s | grep -q -e "^$1\b"
}

IsMounted()
{
    mount | grep -q -e "^$1\b"
}

HasHolders()
{
    [ "$(ls "$1/holders")" ]
}

IsBusy()
{
    DEVICE=$(Block2Device $(cat "$1/dev")) 
    if IsSwap "$DEVICE" || IsMounted "$DEVICE" || HasHolders "$1"; then
	Message "device '$DEVICE' is busy"
	false
    else
	true
    fi
}

SleepDrive()
{
    BLOCK=$(cat $SCSI_DEVICE/block/*/dev 2> /dev/null)
    DEVICE=$(Block2Device "$BLOCK")
    if ! /sbin/hdparm -Y "$DEVICE" &> /dev/null; then
        Message "cannot put drive to sleep"
        if [ $FORCE_SLEEP = "0" ]; then
            true
        else
            false
        fi
    fi
}

DeleteScsiDevice()
{
    if ! { echo 1 > $SCSI_DEVICE/delete; } &> /dev/null; then
        Message "cannot delete device"
        false
    fi
}

GetDock()
{
    grep "$1" /sys/devices/platform/dock.*/type | sed -e s%/type:.*%%
}

IsDocked()
{
    [ $(cat $(GetDock "$1")/docked) -ne 0 ]
}

Undock()
{
    { echo 0 > $(GetDock "$1")/undock; } &> /dev/null
    if IsDocked "$1"; then
        Message "cannot undock UltraBay"
        false
    else
        Message "UltraBay undocked"
        true
    fi

}

while getopts "d:qlsb" OPTION; do
    case $OPTION in
        d)
            SCSI_DEVICE="$OPTARG"
        ;;
        s)
            FORCE_SLEEP="0"
        ;;
        q)
            QUIET="1"
        ;;
        l)
            SYSLOG="1"
        ;;
        b)
            BEEP="1"
        ;;
        ?)
            Usage
        ;;
      esac
done
 
if [ -d "$SCSI_DEVICE" ] && IsDocked "ata_bay"; then
    sync
    for DEV_DIR in $(ls $SCSI_DEVICE/block/*/*/dev $SCSI_DEVICE/block/*/dev | sed -e s/dev$//  2> /dev/null); do
	IsBusy "$DEV_DIR" || Exit "fail"
    done
    sync
    SleepDrive || Exit "fail"
    DeleteScsiDevice || Exit "fail"
    sleep 4
fi

if [ ! -d $SCSI_DEVICE ] && $(IsDocked "ata_bay"); then
    if Undock "ata_bay"; then
        Exit "success"
    else
        Exit "fail"
    fi
fi

Message "UltraBay is already undocked"
Exit "success"

Supported models: R400 - linux-2.6.29

comments

Interesting, especially the support for swap partitions. but I have two comments, first your calling your script hotswap.sh and then having udev call ultrabay.sh?

Then your hard coding the location of the Ultrabay device. This is not guaranteed to be correct, although it will be in most cases. In particular the A and W-series machines. A-series had support for more then one Ultrabay device, while W-series has support for more then one internal HDD in addition to the Ultrabay device, so the Ultrabay location will shift. That is why the Ultrabay Eject script on the main page gets the eject device information from udev.

comments

Hi, thanks, I fix name of script :) Udev calling ultrabay.sh with option -d, so it remove correct device, if you want remove device manualy, is default device useful. But option may be required...

more comments ;)

You might also have a look at the script on the main page, it has a few extra abilities, such as logging to syslog, beeping and putting up popups on the desktop.

Logging to syslog is simple, just call 'logger' with what you want to log. quite should have no effect on this.

For beeps, similar to what windows does you can echo different values to /proc/acpi/ibm/beep, but it only works if sound is not muted. Unfortunately doing so does seem to generate some annoying messages in syslog.

Lastly you can use notify-send to put up messages on the desktop, but before you can do so you have to do an export DISPLADISPLAY=0:0 /usr/bin/knotify4 --passive-popup : Adresář nebo soubor neexistujeY=:0.0

Syslog and beep

OK, scrip now support syslog and beeping :).


Still missing notify-send ;)

I am also thinking that it would be useful in the case of a busy filesystem to tell the user to run something like fuser -mv /dev/sr0
Or perhaps we should run it ourselves automatically and just tell the user what is the cause of the busy filesystem.
--Tonko 21:21, 8 June 2009 (UTC)