[Linux-cluster] question about creating partitions and gfs

Wed May 10 12:33:04 UTC 2006

Jason, I just realized what the problem is. You need to apply the config to a
"pool"
not a normal device.  What do your pooll definitions look like? The one you
created
for the config is where you need to point ccs_tool at to activate the
config...

Corey 

-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Kovacs, Corey J.
Sent: Wednesday, May 10, 2006 8:31 AM
To: linux clustering
Subject: RE: [Linux-cluster] question about creating partitions and gfs

Jason, couple of questions.... (And I assume you are working with
RHEL3+GFS6.0x)

1. Are you actually using raw devices? if so, why? 
2. Does the device /dev/raw/raw64 actually exist on tf2?

GFS does not use raw devices for anything. The standard Redhat Cluster suite
does, but not GFS. GFS uses "storage pools".  Also, if memory servs me right,
later versions of GFS for RHEL3 need to be told what pools to use in the
"/etc/sysconfig/gfs" config file. Used to be that GFS just did a scan and
"found" the pools, but no longer I believe.

Hope this helps. If not, can you give more details about your config? 

Corey

-----Original Message-----
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Jason
Sent: Tuesday, May 09, 2006 8:23 PM
To: linux clustering
Subject: Re: [Linux-cluster] question about creating partitions and gfs

yes, both boxes are connected to the storage, its a dell powervault 220S
configured for cluster mode. 

[root at tf1 cluster]#  fdisk -l /dev/sdb

Disk /dev/sdb: 146.5 GB, 146548981760 bytes
255 heads, 63 sectors/track, 17816 cylinders Units = cylinders of 16065 * 512
= 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdb1             1      2433  19543041   83  Linux
[root at tf1 cluster]# 

[root at tf2 cluster]# fdisk -l /dev/sdb

Disk /dev/sdb: 146.5 GB, 146548981760 bytes
255 heads, 63 sectors/track, 17816 cylinders Units = cylinders of 16065 * 512
= 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdb1             1      2433  19543041   83  Linux
[root at tf2 cluster]# 

so both sides see the storage.  

on tf1, I can start ccsd fine, but on tf2, I cant, and I see May  8 22:00:21
tf2 ccsd: Unable to open /dev/sdb1 (/dev/raw/raw64): No such device or
address May  8 22:00:21 tf2 ccsd: startup failed May  9 20:17:21 tf2 ccsd:
Unable to open /dev/sdb1 (/dev/raw/raw64): No such device or address May  9
20:17:21 tf2 ccsd: startup failed May  9 20:17:30 tf2 ccsd: Unable to open
/dev/sdb1 (/dev/raw/raw64): No such device or address May  9 20:17:30 tf2
ccsd: startup failed
[root at tf2 cluster]# 

in the logs

Jason

On Tue, May 09, 2006 at 08:16:07AM -0400, Kovacs, Corey J. wrote:
> Jason, if IIRC, the dells internal disks show up as /dev/sd* devices. 
> Do you have a shared storage device? If /dev/sdb1 is not a shared 
> device, then I think you might need to take a step back and get a hold 
> of a SAN of some type. If you are just playing around, there are ways 
> to get some firewire drives to accept
> 
> two hosts and act like a cheap shared devices. There are docs on the 
> Oracle site documenting the process of setting up the drive and the 
> kernel. Note, that you'll only be able to use two nodes using the 
> firewire idea.
> 
> Also, you should specify a partition for the command below. That 
> partition can be very small. Something on the order of 10MB sounds 
> right. Even that is probably way too big. Then use the rest for GFS 
> storage pools.
> 
> 
> Corey
> 
> -----Original Message-----
> From: linux-cluster-bounces at redhat.com 
> [mailto:linux-cluster-bounces at redhat.com] On Behalf Of Jason
> Sent: Monday, May 08, 2006 9:32 PM
> To: linux-cluster at redhat.com
> Subject: [Linux-cluster] question about creating partitions and gfs
> 
> so still following instructions at
> http://www.gyrate.org/archives/9
> im at the part that says
> 
> "# ccs_tool create /root/cluster /dev/iscsi/bus0/target0/lun0/part1"
> 
> in my config, I have the dell PERC 4/DC cards, and I believe the 
> logical drive showed up as /dev/sdb
> 
> so do I need to create a partition on this logical drive with fdisk 
> first before I run
> 
>  ccs_tool create /root/cluster  /dev/sdb1
> 
> or am I totally off track here?
> 
> i did ccs_tool create /root/cluster /dev/sdb and it seemed to work 
> fine, but doesnt seem right..
> 
> Jason
> 
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