Mailing List Archive: DRBD: Users

Active/Passive iSCSI

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phmazzoni at gmail

Jan 11, 2012, 2:08 AM

Post #1 of 2 (523 views)
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Active/Passive iSCSI

Hello everyone,

I am studying the Active/Passive iSCSI configuration on the guide:

http://www.linbit.com/en/education/tech-guides/highly-available-iscsi-with-drbd-and-pacemaker/

The guide says that we have to configure a Virtual IP for the iSCSI target.
But it doens't detail the network configuration.

1 - How do I select the network interfaces to use for iSCSI?

2 - Each server must have a interface on the same subnet of the iSCSI VIP,
correct? If yes, then how do I point that on crm? How do I tie this things
togheter?

3 - On the "Resource" section of the drbd config file, I have to select the
IP Address of the DRBD Replication interface, correct:
i.e.:

resource iscsivg01 {
device /dev/drbd1;
disk /dev/sda1;
meta-disk internal;
on alice {
address 10.0.42.1:7790;
}
on bob {
address 10.0.42.2:7790;
}
}

4 - I am missing something?
5 - Anybody has a tip on a more detailed guide for that configuration?

Thanks in advance,
Pedro Mazzoni

netmatters at gmail

Jan 11, 2012, 2:43 AM

Post #2 of 2 (500 views)
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Re: Active/Passive iSCSI [In reply to]

On 11/01/2012, Pedro Henrique Morsch Mazzoni <phmazzoni [at] gmail> wrote:
> Hello everyone,
>
> I am studying the Active/Passive iSCSI configuration on the guide:
>
> http://www.linbit.com/en/education/tech-guides/highly-available-iscsi-with-drbd-and-pacemaker/
>
> The guide says that we have to configure a Virtual IP for the iSCSI target.
> But it doens't detail the network configuration.
>
> 1 - How do I select the network interfaces to use for iSCSI?
>
> 2 - Each server must have a interface on the same subnet of the iSCSI VIP,
> correct? If yes, then how do I point that on crm? How do I tie this things
> togheter?

Hi,

Take a look at the crm cli utility for configuring pacemaker/corosync,
that should be explained in all the DRBD/Pacemaker guides.

You need to configure pacemaker and pacemaker will bring up the iSCSI
targets as well as the virtual IP.

Hope this helps.
Regards,
Gavin
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