[ClusterLabs] Bloody Newbie needs help for OCFS2 on pacemaker+corosync+pcs

[thl at it-hluchnik.de]

What do you mean? What is the "resource agent for using o2cb"? Please explain this a bit closer, I am just becoming familiar with all that stuff.

Thanks for any help,

Thomas Hluchnik


Am Tuesday 02 August 2016 15:28:17 schrieb emmanuel segura:
> why you don't use the resource agent for using o2cb? This script for
> begin used with ocfs legacy mode.
> 
> 2016-08-02 12:39 GMT+02:00 Kyle O'Donnell <kyleo at 0b10.mx>:
> > er forgot
> >
> > primitive p_o2cb lsb:o2cb \
> >         op monitor interval="10" timeout="30" \
> >         op start interval="0" timeout="120" \
> >         op stop interval="0" timeout="120"
> >
> > ----- Original Message -----
> > From: "Kyle O'Donnell" <kyleo at 0b10.mx>
> > To: "users" <users at clusterlabs.org>
> > Sent: Tuesday, August 2, 2016 6:38:11 AM
> > Subject: Re: [ClusterLabs] Bloody Newbie needs help for OCFS2 on        pacemaker+corosync+pcs
> >
> > primitive mysan ocf:heartbeat:Filesystem \
> >         params device="/dev/myocsdevice" directory="/mymount" fstype="ocfs2" options="rw,noatime" \
> >         op monitor timeout="40" interval="20" depth="0"
> > clone cl_ocfs2mgmt p_o2cb \
> >         meta interleave="true"
> > clone cl_mysan mysan \
> >         meta target-role="Started"
> > order o_myresource_fs inf: cl_mysan myresource
> >
> >
> > ----- Original Message -----
> > From: thl at it-hluchnik.de
> > To: "users" <users at clusterlabs.org>
> > Sent: Tuesday, August 2, 2016 6:31:44 AM
> > Subject: [ClusterLabs] Bloody Newbie needs help for OCFS2 on    pacemaker+corosync+pcs
> >
> > Hello everybody,
> > I am new to pacemaker (and to this list), trying to understand pacemaker. For this I created three virtual hosts in my VirtualBox plus four shared disks, attached with each of the three nodes.
> >
> > I installed Oracle Enterprise Linux 7.1, did a "yum update" and got OEL7.2.
> > Then I created four OCFS2 devices, working fine on all of my three nodes. They are started by systemd, using o2cb.service and ocfs2.service and running fine.
> >
> > Now I have started with learning pacemaker by "Clusters from Scratch" and meanwhile I have a virtual IP and a Webserver, this works fine so far.
> >
> > Next I want to control my OCFS2 devices by pacemaker, not by systemd. I searched the net and found some howtos, but they rely on crmsh instead of pcs. Most headaches come from DRBD which I don't understand at all. Why the hell does it seem that I need DRBD for running OCFS2?
> >
> > Is there anybody who can explain me how to get that running (after disabling o2cb.service & ocfs2.service):
> >
> > - create a resource which manages and controls o2cb stack
> > - create another resource which manages OCFS2 mountpoints
> > - create constraints for the Web Server (all Apache config / content shall be copied to one of the OCFS2 filesystems)
> >
> > The Web Server shall be dependent from availability of a mounted OCFS2 device. If it stops working, the Web Server must switch to a node where that mount point is OK.
> >
> > Thanks in advance for any help
> >
> > Thomas Hluchnik
> >
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> 
> 
> 


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