Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
No, we are using single-primary mode, there are only one primary
resource at time, this is controlled by the drbd-vbd helper script.
Isn't a split brain problem.
What kind of info do you need?
Thanks.
Maros Timko escribió:
> You did not provided much details on it, but try to look at the
> "|fencing|" parameter on:
> http://www.drbd.org/users-guide-emb/re-drbdconf.html
>
> BTW, are you using dual-primary mode?
>
> With regards,
>
> Tino
>
> 2009/4/24 Isaac González <igonzalez at es.clara.net
> <mailto:igonzalez at es.clara.net>>
>
> Hi all,
>
> I've a production system with this setup.
>
> 2 Xen servers in HA sharing DRBD resources.
>
> DRBD resources are over LVM's.
>
> DomU's are firewalls with differents VLAN's for each one. (There
> are not
> I/O problems because I've not much read/write proccesses).
>
> The DRBD setup is for each domU (we've 16 vm):
>
> 1 DomU
> 1 - DRBD for base system (5GB)
> 1 - DRBD resource for swap (512M)
>
> We use a different port for each resource, and physical server are
> connected through crossover 10gigabit wire. (not bandwidth problem)
>
> For example:
>
> resource VM1 {
> on M1 {
> device /dev/drbd38;
> disk /dev/vg00/VM1;
> meta-disk internal;
> address 10.0.0.1:7827 <http://10.0.0.1:7827/>;
> }
>
> on M2 {
> device /dev/drbd38;
> disk /dev/vg00/VM1;
> meta-disk internal;
> address 10.0.0.2:7827 <http://10.0.0.2:7827/>;
> }
> }
>
> resource M1-swap {
> on M1 {
> device /dev/drbd39;
> disk /dev/vg00/VM1-swap;
> meta-disk internal;
> address 10.0.0.1:7828 <http://10.0.0.1:7828/>;
> }
>
> on M2 {
> device /dev/drbd39;
> disk /dev/vg00/VM1-swap;
> meta-disk internal;
> address 10.0.0.2:7828 <http://10.0.0.2:7828/>;
> }
> }
>
> THE PROBLEM.
>
> If I do a "reboot" on the domU, the DRDB resource freezes and domU
> doesn't boot.
> Then I've to kill the Xen proccess that are using drbd's resources of
> this domU, set the drbd resource as secondary and start the domU
> again.
> We'use the drbd helper script to manage drbd resources on xen.
>
> Some idea?
>
> Thanks in advance
>
>
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