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> `'`http://www.geekarea.fr
>
>
> - Mail original -
> > De: "emmanuel segura"
> > À: "linux clustering"
> > Envoyé: Mercredi 25 Avril 2012 18:05:09
> > Objet: Re: [Linux-cluster] Redhat without qdisk
> >
> >
&g
gards
--
.`'`. GouNiNi
: ': :
`. ` .` GNU/Linux
`'`http://www.geekarea.fr
- Mail original -
> De: "emmanuel segura"
> À: "linux clustering"
> Envoyé: Mercredi 25 Avril 2012 18:05:09
> Objet: Re: [Linux-cluster] Redhat without qdisk
&g
': :
> `. ` .` GNU/Linux
> `'`http://www.geekarea.fr
>
>
> - Mail original -----
> > De: "Gunther Schlegel"
> > À: linux-cluster@redhat.com
> > Envoyé: Lundi 16 Avril 2012 17:15:52
> > Objet: Re: [Linux-cluster] Redhat witho
om
> Envoyé: Lundi 16 Avril 2012 17:15:52
> Objet: Re: [Linux-cluster] Redhat without qdisk
>
> Hi,
>
> > But if you have problem with your storage it's normale the node
> > goes
> > fenced, because your cluster services depends on storage
>
> Well
Hi,
But if you have problem with your storage it's normale the node goes
fenced, because your cluster services depends on storage
Well, no, my clustered services do not depend on SAN storage.
Or maybe you wold like to have a cluster running without san disk
I need the qdisk for two reasons
But if you have problem with your storage it's normale the node goes
fenced, because your cluster services depends on storage
Remember the storage it's a critical component of a cluster
Or maybe you wold like to have a cluster running without san disk
Il giorno 13 aprile 2012 11:20, Gunther Sc
Hi Lon,
>> Why redhat made the qdisk as Tie-breakers and some people from support
>> say it's one optional or some time says is not needed?
>
> It is optional and is often not needed. It was developed really for two
> purposes:
>
> - to help resolve fencing races (which can be resolved using d
On 04/12/2012 12:04 PM, emmanuel segura wrote:
If don't use the qdisk who is the master in the split-brain?
Remember, DLM/rgmanager recovery is performed -after- fencing. In a two
node cluster:
with no qdisk (two_node="1"):
- by default, both nodes go to fence at the same time :(
+ fencing
On 04/12/2012 12:04 PM, emmanuel segura wrote:
> If don't use the qdisk who is the master in the split-brain?
>
> Who take the resources?
>
> What are you concerns about fence_scsi?
>
> fence_scsi in redhat 5.X doesn't reboot the node, the fenced node neve
> release the resources
>
> Why redhat
On 04/12/2012 11:51 AM, Ryan O'Hara wrote:
> On 04/12/2012 10:18 AM, emmanuel segura wrote:
>> That's right
>>
>> you'll found your cluster partitioned and if you "> expected_votes="1">" as redhat setting our cluster maybe you get data
>> corruption
>
> How? What fence agent are you using? I've us
t;
>>>
>>>
>>>
>>> But it's not very clear to me what happens with fencing if both nodes
>>> get partitioned on the network. Do they both try to fence each other off
>>> ?
>>>
>>>
>>> --
>>> Dan
>&g
On 04/12/2012 11:18 AM, emmanuel segura wrote:
That's right
you'll found your cluster partitioned and if you "" as redhat setting our cluster maybe you get data
corruption
GFS2 and rgmanager depend on fencing completion prior to service
recovery or GFS2's journal recovery.
Most two-node clu
>
> --
> Dan
>
> ** **
> --
>
> *From:* linux-cluster-boun...@redhat.com [linux-cluster-boun...@redhat.com]
> on behalf of emmanuel segura [emi2f...@gmail.com]
> *Sent:* Thursday, April 12, 2012 9:25 AM
> *To:* linux clustering
&g
--
*From:* linux-cluster-boun...@redhat.com [linux-cluster-boun...@redhat.com]
on behalf of emmanuel segura [emi2f...@gmail.com]
*Sent:* Thursday, April 12, 2012 9:25 AM
*To:* linux clustering
*Subject:* [Linux-cluster] Redhat without qdisk
Hello all List
I have a b
ioned on the network. Do they both try to fence each other off ?
>
>
> --
> Dan
>
> --
> *From:* linux-cluster-boun...@redhat.com [linux-cluster-boun...@redhat.com]
> on behalf of emmanuel segura [emi2f...@gmail.com]
> *Sent:* Thursday, Ap
Sent: Thursday, April 12, 2012 7:47 AM
To: linux clustering
Subject: Re: [Linux-cluster] Redhat without qdisk
A qdisk is just another way to maintain quorum in cluster. there is a special
two node cluster mode designed to allow for quorum to be maintained by the
surviving node.
But it's not
ry to fence each other off ?
--
Dan
From: linux-cluster-boun...@redhat.com [linux-cluster-boun...@redhat.com] on
behalf of emmanuel segura [emi2f...@gmail.com]
Sent: Thursday, April 12, 2012 9:25 AM
To: linux clustering
Subject: [Linux-cluster] Redhat without
Hello all List
I have a big question about qdisk in a two cluster
one of out clients has too many cluster in two nodes configuration and one
RedHat technical came to us and said that there is no need to use the qdisk
I would to know if this is true
I really think it's a bad idea
--
esta es mi
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