RE: [Evms-devel] How to use EVMS and Linux-HA together?

[Thomas Guyot-S. <Th...@za...>]

> -----Original Message-----
> From: Eric [mailto:eri...@gm...] 
> Sent: March 13, 2006 8:53
> To: Thomas Guyot-Sionnest
> Cc: evm...@li...
> Subject: Re: [Evms-devel] How to use EVMS and Linux-HA together?
> 
> Hi Tomas,
>  
> Thanks for your help. I have run "evmsccm -v", and the output 
> is correct. But there is an error when I was running "evmsccm -l":
>  
> # evmsccm -l
> CCM has a membership
> The membership has quorun.
> This nodeis "mylinux".
> Failed to initialize for a node walk.

Fails for me either, but that isn't a problem.
  
> I don't know what is "a node walk.".
>  
> Another question is, If I want to failover a private 
> container on Linux-HA, I must specify it in 
> /etc/ha.d/haresource, like this:
>  
> mylinux evms_failover::container
>  
> But without Linux-HA running, I can not create any cluster 
> container. So this is a dilema?

Run heartbeat with only an IP address as resources, then add more resources
later. You can also define only one node, then add the other later.

> The last question is, can I create a cluster container using 
> a normal disk patition(such as /dev/hda3)? Or must use 
> special network storage device?

Cluster containers are really meant for shared devices that can be
simultaneously acceded by two or more servers at the same time. The role to
these cluster containers is to prevent any server from mistakenly using
those device while they are used by another server.

I don't see any reason to use them on a partition (use them on the whole
disk instead), and there's absolutely no reason to use them on local disks.

Thomas