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

שלום קלמר sklemer at gmail.com
Fri Feb 4 22:07:36 UTC 2011 

Hello Dominic.

I will be in lab on monday and collect all steps & logs files.

btw - Is it  redhat recommendation to preferre  using  HA-LVM with the
locking_type=1 method ??


Regards

Shalom

On Fri, Feb 4, 2011 at 5:23 PM, dOminic <share2dom at gmail.com> wrote:

> Hi Shalom,
>
> Are you still facing problem implementing HA-LVM with locking_type = 3
> setting ?. If yes, it would be great if you could provide the following
> details .
> So that others can also check
>
> * steps you are following along with complete output
> * status in "clustat" after making changes in cluster.conf
> * attach cluster.conf and /var/log/messages.
>
> dominic
>
> On Fri, Feb 4, 2011 at 8:34 PM, שלום קלמר <sklemer at gmail.com> wrote:
>
>> Thanks.
>>
>> This is the old methos and its work great but its hard to maintain such
>> cluster.
>>
>> Shalom.
>>
>>
>> On Fri, Feb 4, 2011 at 4:32 PM, Dominic Geevarghese <share2dom at gmail.com>wrote:
>>
>>>
>>> Hi,
>>>
>>> I am not sure about the error you are getting but it would be great if
>>> you could try the preferred method
>>>
>>> locking_type = 1
>>> volume_list [ "your-root-vg-name" , "@hostname" ]
>>>
>>> rebuild initrd
>>>
>>> add the <lvm> and <fs> resources in cluster.conf , start the cman,
>>> rgmanager .
>>>
>>>
>>> Thanks,
>>>
>>> On Thu, Feb 3, 2011 at 8:02 PM, Corey Kovacs <corey.kovacs at gmail.com>wrote:
>>>
>>>> Excellent,
>>>>
>>>>
>>>> Thanks
>>>>
>>>> -C
>>>>
>>>> On Thu, Feb 3, 2011 at 10:38 AM, שלום קלמר <sklemer at gmail.com> wrote:
>>>> >
>>>> >
>>>> > On Thu, Feb 3, 2011 at 12:35 PM, שלום קלמר <sklemer at gmail.com> wrote:
>>>> >>
>>>> >>
>>>> >>
>>>> >> https://access.redhat.com/kb/docs/DOC-3068
>>>> >>
>>>> >> On Thu, Feb 3, 2011 at 11:13 AM, Corey Kovacs <
>>>> corey.kovacs at gmail.com>
>>>> >> wrote:
>>>> >>>
>>>> >>> 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.
>>>> >>> >
>>>> >>> >
>>>> >>> >
>>>> >>> > --
>>>> >>> > Linux-cluster mailing list
>>>> >>> > Linux-cluster at redhat.com
>>>> >>> > https://www.redhat.com/mailman/listinfo/linux-cluster
>>>> >>> >
>>>> >>>
>>>> >>> --
>>>> >>> Linux-cluster mailing list
>>>> >>> Linux-cluster at redhat.com
>>>> >>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>>> >
>>>> >
>>>> > --
>>>> > Linux-cluster mailing list
>>>> > Linux-cluster at redhat.com
>>>> > https://www.redhat.com/mailman/listinfo/linux-cluster
>>>> >
>>>>
>>>> --
>>>> Linux-cluster mailing list
>>>> Linux-cluster at redhat.com
>>>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>>>
>>>
>>>
>>> --
>>> Linux-cluster mailing list
>>> Linux-cluster at redhat.com
>>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>>
>>
>>
>> --
>> Linux-cluster mailing list
>> Linux-cluster at redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-cluster
>>
>
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20110205/b8938cbf/attachment.htm>

More information about the Linux-cluster mailing list