[Pacemaker] iLO2 stonith device

[Adrian Chapela]

Aaron Bush escribió:
> Here are some comments from Dejan back on November 5th, 2008 when I had a similar question about ILO.  It may help shed some light on this.  You can look in the archives for around the same time and maybe get some good info.
>   
OK, thank you.

Now I am trying to deploy something similar and I have the next error:

WARN: start ilo_burns failed, because its hostlist is empty

The message is very clear but I have the next line on the stonith config:
<nvpair id="id-hostlist-burns" name="hostlist" value="node1"/>

Why could be the reason for this error ?

> -ab
>
>   
>> Note that handling of clones is done on a different level, i.e.
>> by the CRM which decides where to run resources. The idea of
>> cloned stonith resources was to have "more" assurance that one of
>> the nodes which run the stonith resource may shoot the offending
>> node. Obviously, this may make sense only for clusters with more
>> than two nodes. On the other hand, if your stonith devices are
>> reliable and regularly monitored, I don't see any need for
>> shooting a node from more than one node. So, with the lights-out
>> devices which are capable of managing only its host (iLO, IBM
>> RSA, DRAC) I'd suggest having a normal (non-cloned) stonith
>> resource with a -INF constraint to prevent it from running on the
>> node it can shoot. This kind of power management setup seems to
>> be very popular and probably prevails today.
>>
>> On larger clusters with stonith devices which may shoot a set of
>> nodes, a single cloned resource should suffice.
>>
>> Does this help? A bit at least? 
>>     
>
>   
>> -----Original Message-----
>> From: Adrian Chapela [mailto:achapela.rexistros at gmail.com] 
>> Sent: Thursday, March 12, 2009 12:14 PM
>> To: pacemaker at oss.clusterlabs.org
>> Subject: Re: [Pacemaker] iLO2 stonith device
>>
>> Dejan Muhamedagic escribió:
>>     
>>> Hi,
>>>
>>> On Thu, Mar 12, 2009 at 02:32:59PM +0100, Andrew Beekhof wrote:
>>>   
>>>       
>>>> On Wed, Mar 11, 2009 at 17:13, Adrian Chapela
>>>> <achapela.rexistros at gmail.com> wrote:
>>>>     
>>>>         
>>>>> One more time.
>>>>>
>>>>> I have decided to use external/riloe as my stonith device 
>>>>>           
>> but I have some
>>     
>>>>> doubts. My system will be a cluster of two nodes.
>>>>>
>>>>> First, Do I need to config riloe stonith as a clone ?
>>>>>       
>>>>>           
>>>> not required, but its an option that may (or may not) simplify the
>>>> configuration
>>>>     
>>>>         
>>> Not much in a two-node configuration. Instead of a clone, there
>>> is a primitive and a location constraint.
>>>   
>>>       
>> Ok, if I understood well I need to have two primitives (or 
>> clones if I 
>> want) one for each device. Of course I need to run the 
>> stonith device of 
>> nodeA in nodeB, is this true ?
>>
>> And, I am not sure about this kind of stonith because: we 
>> need a normal 
>> interface (better if is redunded as  a bonding for example) 
>> to access to 
>> iLO server interfaces but in each server there is only one 
>> iLO device. 
>> If you have two switchs to achieve high availability, you 
>> will need two 
>> devices... Other option could be two switchs, one for each 
>> ethernet card 
>> on each server (two cards by server) and then one iLO device to one 
>> switch and one to another switch. What do you think about 
>> this solution 
>> ? Could be reliable ?
>>     
>>>   
>>>       
>>>>> Second, this stonith device have some parameters of 
>>>>>           
>> configuration: hostlist,
>>     
>>>>> ilo_hostname, ilo_user, ilo_password, ilo_can_reset, ilo_protocol,
>>>>> ilo_powerdown_method. All of examples I have seen have in 
>>>>>           
>> hostlist one node
>>     
>>>>> Is this a list or is a hostname ?. Is ilo_hostname a 
>>>>>           
>> hostname to access to
>>     
>>>>> ilo device ? Could have only one stonith clone for two nodes ?
>>>>>       
>>>>>           
>>>> You'd have to look at the code.
>>>> I dont know it personally, but one would hope that with a name like
>>>> hostlist it should support a list.
>>>>     
>>>>         
>>> ilo_hostname is the ip address of the ilo device.
>>>   
>>>       
>>>   
>>>       
>>>>> The last question is about the license of the iLO2 card. 
>>>>>           
>> Do I need a license
>>     
>>>>> to use this card as a poweroff device ? I think not 
>>>>>           
>> because riloe is
>>     
>>>>> accessing iLO2 by https but I have downloaded a 60 trial 
>>>>>           
>> license and now I
>>     
>>>>> can't try that. Has someone the answer ?
>>>>>       
>>>>>           
>>>> -ENOIDEA
>>>>     
>>>>         
>>> Didn't know one needed a license for an ilo device.
>>>   
>>>       
>> I have tested today with another server without iLO Advanced 
>> license and 
>> I can shutdown the server. The license only is needed to have 
>> a remote 
>> console that is like a remote kvm. It is very good but it 
>> isn't needed 
>> in Linux HA.
>>     
>>> Thanks,
>>>
>>> Dejan
>>>
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>>>
>>>   
>>>       
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>>
>>     
>
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