Re: [linux-lvm] managing "local" LVM and cLVM concurrently ?

Re: [linux-lvm] managing "local" LVM and cLVM concurrently ?

[Lentes, Bernd]

----- On Jun 14, 2016, at 10:25 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote:

> -------- Ursprüngliche Nachricht --------
> Von: Digimer <lists@alteeve.ca>

> On 14/06/16 11:27 AM, Lentes, Bernd wrote:
> > Hi,

>> i have a configuration where i have some local logical volumes (on an internal
>> RAID-Controller) and also some logical volumes on a SAN which are shared with a
> > second host. Is this possible concurrently ?
> > Which locking_type to i have to povide ?

> > Thanks.

> > Bernd

> Yup. When you create the VG on the cluster, use the -cy switch (cluster
> = yes). Conversely, when creating a VG on non-shared storage, use -cn.
> You need to set the locking to '3' (cluster locking) and be running the
> clvmd service (which requires DLM which is provided by cman on older
> distros and by a stand-alone DLM service on newer distros).

> I assume your cluster is formed properly and fencing/stonith is
> configured and tested?


No. Currently i'm just trying and testing.
I think cman is a Red Hat thing ? I have SLES 11 for the nodes. My plan is to use pacemaker. From what i read 
until now DLM should be ressource managed by the cluster manager.
Or can i configure it as a normal service, managed by init or systemd? 

Bernd
 

Helmholtz Zentrum Muenchen
Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
Ingolstaedter Landstr. 1
85764 Neuherberg
www.helmholtz-muenchen.de
Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe
Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Alfons Enhsen, Renate Schlusen (komm.)
Registergericht: Amtsgericht Muenchen HRB 6466
USt-IdNr: DE 129521671

Re: [linux-lvm] managing "local" LVM and cLVM concurrently ?

[Digimer]

On 14/06/16 11:27 AM, Lentes, Bernd wrote:
> Hi,
> 
> i have a configuration where i have some local logical volumes (on an internal RAID-Controller) and also some logical volumes on a SAN which are shared with a second host. Is this possible concurrently ?
> Which locking_type to i have to povide ?
> 
> Thanks.
> 
> Bernd

Yup. When you create the VG on the cluster, use the -cy switch (cluster
= yes). Conversely, when creating a VG on non-shared storage, use -cn.
You need to set the locking to '3' (cluster locking) and be running the
clvmd service (which requires DLM which is provided by cman on older
distros and by a stand-alone DLM service on newer distros).

I assume your cluster is formed properly and fencing/stonith is
configured and tested?

-- 
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without
access to education?

[linux-lvm] managing "local" LVM and cLVM concurrently ?

[Lentes, Bernd]

Hi,

i have a configuration where i have some local logical volumes (on an internal RAID-Controller) and also some logical volumes on a SAN which are shared with a second host. Is this possible concurrently ?
Which locking_type to i have to povide ?

Thanks.


Bernd

-- 
Bernd Lentes 

Systemadministration 
institute of developmental genetics 
Gebäude 35.34 - Raum 208 
HelmholtzZentrum München 
bernd.lentes@helmholtz-muenchen.de 
phone: +49 (0)89 3187 1241 
fax: +49 (0)89 3187 2294 

Wer glaubt das Projektleiter Projekte leiten 
der glaubt auch das Zitronenfalter 
Zitronen falten
 

Helmholtz Zentrum Muenchen
Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
Ingolstaedter Landstr. 1
85764 Neuherberg
www.helmholtz-muenchen.de
Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe
Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Alfons Enhsen, Renate Schlusen (komm.)
Registergericht: Amtsgericht Muenchen HRB 6466
USt-IdNr: DE 129521671