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RE: [Linux-cluster] can't import gnbd ?



Dear Ben :

Thank you for your kindly reply. I still have another question as follows:

the host client is one of GNBD client in my cluster, does it need to start
cman service at client host? 
The host client is not suppose to be included in /etc/cluster/cluster.conf.

My cluster architecture is as below:

Hosta ( GFS / GNBD Server )  ---------|
Hostb ( GFS / GNBD Server )  ---------| ------------ SAN Storage
Hostc ( GFS / GNBD Server )  ---------|
       |
       |
       |
       --------------- client ( GNBD Client )


-----Original Message-----
From: linux-cluster-bounces redhat com
[mailto:linux-cluster-bounces redhat com] On Behalf Of Benjamin Marzinski
Sent: Wednesday, March 11, 2009 1:27 AM
To: linux clustering
Subject: Re: [Linux-cluster] can't import gnbd ?

On Tue, Mar 10, 2009 at 05:20:57PM +0800, Figaro Yang wrote:
>    Hi , ALL ..
> 
> 
> 
>    I set up a File Cluster consist of 3 GNBD Server , using gnbd server
for
>    fencing , in case , when I on client node to gnbd_import , system have
>    return some error message .. how can I solve it ? thank all ..
> 
> 
> 
>    [root client ~]# modprobe gnbd
> 
>    [root client ~]# gnbd_import -i io3
> 
>    gnbd_import: ERROR cannot get node name : No such file or directory
> 
>    gnbd_import: ERROR If you are not planning to use a cluster manager,
use
>    -n

Did you start up the cman first?

Unless you are planning to use gnbd outside of a cluster (and if you
want fencing, you need to use run gnbd in a cluster), you need to start
cman first.  gnbd_import failed when it called cman_init(). The most
likely reason for this is that your cluster is not started yet.

-Ben

> 
>    [root client ~]# tail /var/log/messages
> 
>    Mar 10 04:44:54 client smartd[3719]: Device: /dev/sda, is SMART
capable.
>    Adding to "monitor" list.
> 
>    Mar 10 04:44:54 client smartd[3719]: Monitoring 1 ATA and 0 SCSI
devices
> 
>    Mar 10 04:44:55 client smartd[3721]: smartd has fork()ed into
background
>    mode. New PID=3721.
> 
>    Mar 10 04:44:55 client pcscd: winscard.c:304:SCardConnect() Reader
E-Gate
>    0 0 Not Found
> 
>    Mar 10 04:44:55 client last message repeated 3 times
> 
>    Mar 10 04:44:56 client kernel: mtrr: type mismatch for d8000000,2000000
>    old: uncachable new: write-combining
> 
>    Mar 10 05:15:15 client gnbd_import: ERROR [../../utils/gnbd_utils.c:78]
>    cman_init failed : No such file or directory
> 
>    Mar 10 05:15:17 client last message repeated 2 times
> 
>    Mar 10 05:15:21 client kernel: gnbd: registered device at major 252
> 
>    Mar 10 05:15:24 client gnbd_import: ERROR [../../utils/gnbd_utils.c:78]
>    cman_init failed : No such file or directory

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