[Linux-cluster] [Q] Good documentation about command line interface??
Hiroyuki Sato
hiroysato at gmail.com
Mon May 30 11:35:38 UTC 2011
Hello Digimer
Thank you for your advice.
* GNBD
I've already succeed to mount GNBD.
locking_type = 1
Should I change lock_type = 3 ?,
If not, what problem will be occur??
* fence_apc
some of reason, I can't get use APC switch.
(That configuration example is test environment. )
so I asked alternative solution.
* fence_wol
I can't find fence_wake_on_lan. so I'm thinking to create it.
WOL supports Power on and Power off ( I'll test later ).
So, It's will be fence tool.
And I downloaded fence_na, It was written in Perl script.
so I want to change fence_na to use wol command.
Could you point me to good reference to build fence_wol.
(Of course!!. fence_na is good reference)
Thank you for your advice again.
Regards.
2011/5/30 Digimer <linux at alteeve.com>:
> On 05/29/2011 06:14 AM, Hiroyuki Sato wrote:
>>
>> Hello Digimer.
>>
>> Thank you for your information.
>>
>> This is the document that I'm looking for!!.
>> This doc is very very usuful. Thanks!!.
>
> Wonderful, I'm glad you find it useful. :)
>
>> I want to ask one thing.
>>
>> Please take a look my cluster configration again.
>
> Will do, comments will be in-line.
>
>> Mainly I want to use GNBD on gfs_clientX.
>> GNBD server is gfs2, and gfs3.
>>
>> And gfs_client's hardwhere does not support IPMI, iLO...,
>> Because That machine is Desktop computers.
>>
>> And no APC like UPS.
>>
>> The desktop machine is just support Wake On LAN.
>>
>> What fence device should I use??
>> I'm thinking fence_wake_on_lan is proper fence device.
>> but that is nothing..
>
> The least expensive option for a commercial product would be APC's switched
> PDU. You have 13 machines, so you would need either 2 of the 1U models, or 1
> of the 0U models.
>
> If you are in North America, you can use these:
>
> http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=AP7900
>
> or
>
> http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=AP7931
>
> If you are in Japan, you'll need to select the best one of these:
>
> http://www.apc.com/products/family/index.cfm?id=70&ISOCountryCode=JP
>
> Whichever you get, you can use the 'fence_apc' fence agent.
>
>> Thank you for your advice.
>>
>> <?xml version="1.0"?>
>> <cluster name="arch_gfs1" config_version="21">
>> <clusternodes>
>> <clusternode name="gfs1.archsystem.com" votes="1" nodeid="5">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs1.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs2.archsystem.com" votes="1" nodeid="6">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs2.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs3.archsystem.com" votes="1" nodeid="7">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs3.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client1.archsystem.com" votes="1" nodeid="21">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client1.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client2.archsystem.com" votes="1" nodeid="22">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client2.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client3.archsystem.com" votes="1" nodeid="23">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client3.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client4.archsystem.com" votes="1" nodeid="24">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client4.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client5.archsystem.com" votes="1" nodeid="25">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client5.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client6.archsystem.com" votes="1" nodeid="26">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client6.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client7.archsystem.com" votes="1" nodeid="27">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client7.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client8.archsystem.com" votes="1" nodeid="28">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client8.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client9.archsystem.com" votes="1" nodeid="29">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client9.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> <clusternode name="gfs_client10.archsystem.com" votes="1" nodeid="30">
>> <fence>
>> <method name="single">
>> <device name="manual" nodename="gfs_client10.archsystem.com"/>
>> </method>
>> </fence>
>> </clusternode>
>> </clusternodes>
>> <fencedevices>
>> <fencedevice name="manual" agent="fence_manual"/>
>> </fencedevices>
>> <rm>
>> <failoverdomains/>
>> <resources/>
>> </rm>
>> </cluster>
>>
>> Regards.
>
> Outside of the "fence_manual" issue, this looks fine. You will probably want
> to get the GFS and GNBD stuff into rgmanager, but that can come later after
> you have fencing working and the core of the cluster tested and working.
>
> Take a look at this:
>
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Global_Network_Block_Device/s1-gnbd-mp-sn.html
>
> It discusses fencing with GNBD. Below is the start of the Red Hat document
> on GNBD in EL5 that you may find helpful, if you haven't read it already.
>
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Global_Network_Block_Device/ch-gnbd.html
>
> Let me know if you want/need any more help. I'll be happy to see what I can
> do.
>
> --
> Digimer
> E-Mail: digimer at alteeve.com
> Freenode handle: digimer
> Papers and Projects: http://alteeve.com
> Node Assassin: http://nodeassassin.org
> "I feel confined, only free to expand myself within boundaries."
>
--
Hiroyuki Sato
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