[DRBD-user] 3 node setup problem

Michele Rossetti rossetti at sardi.it
Tue Jun 7 22:09:51 CEST 2016

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Thanks, Roland,

but it seems impossible to configure with drbdmanage a complete mesh 
configuration with 2 interfaces (cross patch) for each node.
Here below the mails with Petra Trunner that confirmed me the manual 
config is right. Must I connect the 3 nodes with only 1 interfaces 
and the use of switches?
Regards,
Michele

Subject: Re: DRBD - your request
From: Petra Trunner <Petra.trunner at linbit.com>

Hi Michele,

yes, that's the right way how you've done it.

To your last question: not yet, but very soon.

Did you know? We have a DRBD mailing list 
http://lists.linbit.com/mailman/listinfo/drbd-user

There, you can  register and also take a look at the linked archive.


Regards,

Petra


Am 17.05.16 um 10:16 schrieb Michele Rossetti:
>Re: DRBD - your request
>Dear Petra,
>thank you for your reply, and I'm sorry to disturb you again, but in 
>the userguide you suggested I cannot find how to configure the 
>connection as indicated in DRBD9 userguide PDF at point 5.8 for 
>complete mash (I have 3 servers each one with 2 NICs dedicated to 
>DRBD, connected with cross cables.
>
>Must I modify manually the drbdctrl.res created by DRBDmanage, adding:
>
># mpve1-2 have crossover links like 192.168.65.x
>connection {
>host mpve1 address 192.168.65.135 port 7012;
>host mpve2 address 192.168.65.136 port 7021;
>}
># mpve1-3 have crossover links like 192.168.67.x
>connection {
>host mpve1 address 192.168.67.135 port 7013;
>host mpve3 address 192.168.67.137 port 7031;
>}
># mpve2-3 have crossover links like 192.168.66.x
>connection {
>host mpve2 address 192.168.66.136 port 7023;
>host mpve3 address 192.168.66.137 port 7032;
>}
>or there is a method with DRBDmanage (not clearly specified in the manual?
>
>Thanks again for your kindness,
>have a nice day,
>Michele
>
>>Dear Michele,
>>
>>I wouldn't create such cluster's config by hand, therefor we created
>>DRBDmanage. Have a look at the setup guide, it makes adding those nodes
>>to your cluster much easier than it was before:
>>https://www.drbd.org/en/doc/users-guide-90/ch-admin-drbdmanage
>>
>>Kind regards,
>>Petra
>>
>>--
>>Petra Trunner
>>DRBD - Corosync - Pacemaker
>>
>>Dear Michele,
>>
>>I wouldn't create such cluster's config by hand, therefor we created
>>DRBDmanage. Have a look at the setup guide, it makes adding those nodes
>>to your cluster much easier than it was before:
>>https://www.drbd.org/en/doc/users-guide-90/ch-admin-drbdmanage
>>
>>Kind regards,
>>Petra
>>--
Petra Trunner

At 14:24 +0200 07.06.2016, Roland Kammerer wrote:
>On Tue, Jun 07, 2016 at 01:22:03PM +0200, Michele Rossetti wrote:
>>  Hi all,
>>  Here below the drbdctrl.res, manually configurated regarding connections:
>
>No. You are not supposed to touch any resource files drbdmanage
>generates, especially not the one it uses for its cluster database (aka
>the control volume). These files get overwritten.
>
>nodea:$ drbdmanage init IP_OF_INTERFACE_FOR_CLUSTER_COMMUNICATION
>
>nodea:$ drbdmanage new-node nodeb NODEBIP
>nodea:$ drbdmanage new-node nodec NODECIP
>
>If you want to make life easy, ssh-copy-id nodea's ssh key to nodeb and
>nodec.
>
>Regards, rck
>_______________________________________________
>drbd-user mailing list
>drbd-user at lists.linbit.com
>http://lists.linbit.com/mailman/listinfo/drbd-user


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