[Linux-cluster] falied to implement HA-LVM with clvmd rhcs5.6

[Corey Kovacs]

Is using ha-lvm with clvmd a new capability? It's always been my
understanding that the lvm locking type for using ha-lvm had to be set
to '1'.

I'd much rather be using clvmd if it is the way to go. Can you point
me to the docs you are seeing these instructions in please?

As for why your config isn't working, clvmd requires that it's
resources are indeed tagged as cluster volumes, so you might try doing
that and see how it goes.

-C

On Thu, Feb 3, 2011 at 7:26 AM, שלום קלמר <sklemer at gmail.com> wrote:
> Hello.
>
>
>
> I followed redhat instruction trying install HA-LVM with clvmd. ( rhcs 5.6 -
> rgmanager 2.0.52-9 )
>
>
>
> I can't make it work.
>
>
>
> lvm.conf- locking_type=3
>
> clvmd work
>
> Its failed saying HA-LVM is not configured correctly.
>
> The manual said that we should run "lvchange -a n lvxx" edit the
> cluster.conf & start the service.
>
>
>
> But From lvm.conf :
>
>
>
> case $1 in
>
> start)
>
>         if ! [[ $(vgs -o attr --noheadings $OCF_RESKEY_vg_name) =~ .....c
> ]]; then
>
>                 ha_lvm_proper_setup_check || exit 1
>
>
>
> If the vg is not taged as cluster than the ha_lvm is looking for volume_list
> in lvm.conf.
>
>
>
> I am confused- Does the VG should taged as cluster ??  ( BTW - the old
> fashion HA-LVM is worked with no problems )
>
> redhat instructions :
>
> To set up HA LVM Failover (using the preferred CLVM variant), perform the
> following steps:
>
>
>
> 1. Ensure that the parameter locking_type in the global section
> of /etc/lvm/lvm.conf is set to the value '3', that all the necessary LVM
> cluster packages are installed, and the necessary daemons are started (like
> 'clvmd' and the cluster mirror log daemon - if necessary).
>
>
>
> 2. Create the logical volume and filesystem using standard LVM2 and file
> system commands. For example:
>
> # pvcreate /dev/sd[cde]1
>
>  # vgcreate <volume group name> /dev/sd[cde]1
>
>  # lvcreate -L 10G -n <logical volume name> <volume group name>
>
>  # mkfs.ext3 /dev/<volume group name>/<logical volume name>
>
>  # lvchange -an <volume group name>/<logical volume name>
>
>
>
> 3. Edit /etc/cluster/cluster.conf to include the newly created logical
> volume as a resource in one of your services. Alternatively, configuration
> tools such as Conga or system-config-cluster may be used to create these
> entries.  Below is a sample resource manager section
> from /etc/cluster/cluster.conf:
>
>
>
> <rm>      <failoverdomains>        <failoverdomain name="FD" ordered="1"
> restricted="0">           <failoverdomainnode name="neo-01" priority="1"/>
>           <failoverdomainnode name="neo-02" priority="2"/>
> </failoverdomain>    </failoverdomains>    <resources>        <lvm
> name="lvm" vg_name="shared_vg" lv_name="ha-lv"/>        <fs name="FS"
> device="/dev/shared_vg/ha-lv" force_fsck="0" force_unmount="1" fsid="64050"
> fstype="ext3" mountpoint="/mnt" options="" self_fence="0"/>    </resources>
>    <service autostart="1" domain="FD" name="serv" recovery="relocate">
>        <lvm ref="lvm"/>        <fs ref="FS"/>    </service> </rm>
>
>
>
> Regards
>
> Shalom.
>
>
>
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