[ClusterLabs] Antw: Re: Antw: sbd: Cannot open watchdog device: /dev/watchdog

[Muhammad Sharfuddin]

On 01/04/2017 06:44 PM, Klaus Wenninger wrote:
> On 01/04/2017 02:23 PM, Muhammad Sharfuddin wrote:
>> On 01/04/2017 06:05 PM, Ulrich Windl wrote:
>>>>>> Muhammad Sharfuddin <M.Sharfuddin at nds.com.pk> schrieb am
>>>>>> 04.01.2017 um 11:58 in
>>> Nachricht <9ff82caa-d16e-13f4-e514-d356224f82e7 at nds.com.pk>:
>>>> On 01/04/2017 12:09 PM, Ulrich Windl wrote:
>>>>>>>> Muhammad Sharfuddin <M.Sharfuddin at nds.com.pk> schrieb am
>>>>>>>> 03.01.2017 um 17:11
>>>> in
>>>>> Nachricht <cdaf4125-f2ce-7793-b4a0-44b2fcaf2ccf at nds.com.pk>:
>>>>>> Hello,
>>>>>>
>>>>>> pacemaker does not start on this machine(Fujitsu PRIMERGY RX2540 M1)
>>>>>> with following error in  the logs:
>>>>>>
>>>>>> sbd: [13236]: ERROR: Cannot open watchdog device: /dev/watchdog:
>>>>>> No such
>>>>>> file or directory
>>>>>>
>>>>>> System Info:
>>>>>>
>>>>>> sbd-1.2.1-8.7.x86_64  corosync-2.3.3-7.12.x86_64
>>>>>> pacemaker-1.1.12-7.1.x86_64
>>>>>>
>>>>>> lsmod | egrep "(wd|dog)"
>>>>>> iTCO_wdt               13480  0
>>>>>> iTCO_vendor_support    13718  1 iTCO_wdt
>>>>> What were the messages when that modules were loaded?
>>>>>
>>>>> [...]
>>>> kernel: [44884.038881] iTCO_vendor_support: vendor-support=0
>>>> kernel: [44884.042038] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
>>>> kernel: [44884.042101] iTCO_wdt: unable to reset NO_REBOOT flag, device
>>>> disabled by hardware/BIOS
>>>>
>>>> what should I check for in firmware ? I have never seen anything in
>>>> firmware/bios that relates to watchdog.
>>> I don't know for your hardware, but for a HP DL380 iLO is handling
>>> the watchdog thing (I think). So maybe look in the corresponding
>>> place for your hardware or Google.
>> Thank you.
>> The unsolved mystery.. on the other 100% identical node(cluster
>> member) /dev/watchdog is also unavailable and there I also got the
>> same messages when loading iTCO_wdt module but pacemaker starts
>> smoothly(even without loading the softdog module).. strange isn't ?
> It is - definitely...
> You can run sbd without watchdog at all. Maybe this mode is somehow
> triggered on your other nodes.
> Opening of the watchdog device definitely is always done via a
> device-file and not somehow directly
> by knowing major/minor of a watchdog device.
> Maybe check again how SBD_WATCHDOG_DEV is set (btw. setting it to
> /dev/null disables watchdog-use).
> On top there is the '-w' parameter to the daemon that can be used to
> overrule the '/dev/watchdog'
> default and - I think in this order - what comes via environment.
>
on both the nodes /etc/sysconfig/sbd is identical and looks like:

SBD_DEVICE="/dev/disk/by-id/wwn-0x600000e00d280000002825b500000000-part1"
SBD_PACEMAKER="yes"
SBD_STARTMODE=
SBD_DELAY_START=
SBD_WATCHDOG="yes"
SBD_OPTS=

--
Regards,
Muhammad  Sharfuddin
>>>>> Ulrich
>>>>>
>>>>>
>>>>>
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