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Active/Active Cluster

 

 

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Yount.William at menloworldwide

Jul 20, 2012, 3:15 PM

Post #1 of 2 (362 views)
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Active/Active Cluster

I know this isn't the right group for this, but I am hoping someone can point me in the right direction.

I have set up a DRBD cluster for replicating a drbd volume across two servers. Each server has its own IP address (10.89.99.31 and 10.89.99.32). I also have a collocated IP address (10.89.99.30) used for mounting the volume on other computers. I am using cman and pacemaker.

I can mount the volume with no issues using 10.89.99.30. When I unplug the network cable from my second storage server, the computer will lose connectivity to the NFS share, even though the IP address shows it is shared. I can still ping 10.89.99.30, but I can't find the share using
showmount -e 10.89.99.30

I have attached the cib.xml and cluster.conf files from my drbd cluster. I know this is more of a pacemaker issue, but maybe someone here has experience with this?


William
Attachments: cib_xml.txt (4.83 KB)
  cluster_conf.txt (1.01 KB)


ff at mpexnet

Jul 23, 2012, 1:29 AM

Post #2 of 2 (332 views)
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Re: Active/Active Cluster [In reply to]

Hi,

On 07/21/2012 12:15 AM, Yount, William D wrote:
> I know this isn’t the right group for this, but I am hoping someone can
> point me in the right direction.
>
>
>
> I have set up a DRBD cluster for replicating a drbd volume across two
> servers. Each server has its own IP address (10.89.99.31 and
> 10.89.99.32). I also have a collocated IP address (10.89.99.30) used for
> mounting the volume on other computers. I am using cman and pacemaker.
>
>
>
> I can mount the volume with no issues using 10.89.99.30. When I unplug
> the network cable from my second storage server, the computer will lose
> connectivity to the NFS share, even though the IP address shows it is
> shared. I can still ping 10.89.99.30, but I can’t find the share using
>
> showmount -e 10.89.99.30
>
>
>
> I have attached the cib.xml and cluster.conf files from my drbd cluster.
> I know this is more of a pacemaker issue, but maybe someone here has
> experience with this?

is there a third machine that acts as client to your nfs service? Does
the nfs mount on this machine go stale when you disconnect the secondary?
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