On Tue, 2009-12-15 at 19:51 +0100, Rafael Micó Miranda wrote:
> http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Logical_Volume_Manager_Administration/mirrored_volumes.html
> http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Logical_Volume_Manager_Administration/
Hi Rafael,
I can already predict what is going to happen during your test
I one of your nodes looses only 1 leg of your mirrored qdisk (either
with mdadm or lvm), the qdisk will still be active from the point of
view of this particular node, so nothing will happen.
What you should consider is
1
Am 15.12.2009 20:01, schrieb Rafael Micó Miranda:
in a similar situation I am using a raid-1 device (built with mdadm
prior to the startup of cman/rgmanager) which consists of two luns, one
in each location. This works pretty well as quorum-device.
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Hi Jacov
El mar, 15-12-2009 a las 17:26 +0100, Jakov Sosic escribió:
> On Tue, 2009-12-15 at 15:31 +0100, Andreas Pfaffeneder wrote:
>
> > in a similar situation I am using a raid-1 device (built with mdadm
> > prior to the startup of cman/rgmanager) which consists of two luns, one
> > in each
Hi Brem
El mar, 15-12-2009 a las 17:21 +0100, brem belguebli escribió:
> Hi,
>
> The problem you could encounter is the network and storage split brain.
>
> If your Qdsik LUNs were hosted by 2 arrays located in 2 different
> rooms or site, each room hosting half the nodes of your cluster, in
> c
Hi Andreas
El mar, 15-12-2009 a las 15:31 +0100, Andreas Pfaffeneder escribió:
> Hi Rafael,
>
> Am 14.12.2009 23:15, schrieb Rafael Micó Miranda:
> > Hi all,
> >
> > I was wondering if there is a way to achieve a "quorum disk over a RAID
> > software device" working CMAN cluster.
> >
> >
> in
Hi Jakov,
El mar, 15-12-2009 a las 11:58 +0100, Jakov Sosic escribió:
> On Mon, 2009-12-14 at 23:15 +0100, Rafael Micó Miranda wrote:
>
> > - Using an LVM-Mirror device as a Qdisk and creating additional LUNs for
> > mirror and log in both storage arrays: if the Qdisk is a Clustered
> > Logical V
On Tue, 2009-12-15 at 15:31 +0100, Andreas Pfaffeneder wrote:
> in a similar situation I am using a raid-1 device (built with mdadm
> prior to the startup of cman/rgmanager) which consists of two luns, one
> in each location. This works pretty well as quorum-device.
So you have to create mdraid
Hi,
The problem you could encounter is the network and storage split brain.
If your Qdsik LUNs were hosted by 2 arrays located in 2 different
rooms or site, each room hosting half the nodes of your cluster, in
case a SAN and network partition occurs between the 2 rooms, you'll
find yourself in a
Hi Rafael,
Am 14.12.2009 23:15, schrieb Rafael Micó Miranda:
Hi all,
I was wondering if there is a way to achieve a "quorum disk over a RAID
software device" working CMAN cluster.
in a similar situation I am using a raid-1 device (built with mdadm
prior to the startup of cman/rgmanager) w
On Mon, 2009-12-14 at 23:15 +0100, Rafael Micó Miranda wrote:
> - Using an LVM-Mirror device as a Qdisk and creating additional LUNs for
> mirror and log in both storage arrays: if the Qdisk is a Clustered
> Logical Volume,
But is it possible to have clustered LVM-mirror? And if so, how? I would
On Tue, Dec 15, 2009 at 5:27 AM, Rajagopal Swaminathan <
raju.rajs...@gmail.com> wrote:
> Greetings,
>
> I am not an expert in cluster.
>
> On Mon, Dec 14, 2009 at 3:06 PM, Brett Cave wrote:
> > I am using ilo fencing to reset servers, so this is more power fencing
> than
> > fabric fencing?
>
>
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