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

[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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