[Gluster-users] Distributed volumes

Tue Jun 3 07:39:58 UTC 2014

I have created distributed volume,  created a 1 GB volume on it, and attached it to the VM and created a filesystem on it.  How to verify that the files in the vm are
distributed across both the bricks on two servers ?

-----Original Message-----
From: Franco Broi [mailto:franco.broi at iongeo.com] 
Sent: Tuesday, June 03, 2014 1:04 PM
To: Gnan Kumar, Yalla
Cc: gluster-users at gluster.org
Subject: Re: [Gluster-users] Distributed volumes

Ok, what you have is a single large file (must be filesystem image??).
Gluster will not stripe files, it writes different whole files to different bricks. 

On Tue, 2014-06-03 at 07:29 +0000, yalla.gnan.kumar at accenture.com
wrote: 
> root at secondary:/export/sdd1/brick# gluster volume  info
> 
> Volume Name: dst
> Type: Distribute
> Status: Started
> Number of Bricks: 2
> Transport-type: tcp
> Bricks:
> Brick1: primary:/export/sdd1/brick
> Brick2: secondary:/export/sdd1/brick
> 
> 
> 
> -----Original Message-----
> From: Franco Broi [mailto:franco.broi at iongeo.com]
> Sent: Tuesday, June 03, 2014 12:56 PM
> To: Gnan Kumar, Yalla
> Cc: gluster-users at gluster.org
> Subject: Re: [Gluster-users] Distributed volumes
> 
> 
> What do gluster vol info and gluster vol status give you?
> 
> On Tue, 2014-06-03 at 07:21 +0000, yalla.gnan.kumar at accenture.com
> wrote: 
> > Hi,
> > 
> > I have created a distributed volume on my   gluster node. I have attached this volume to a VM on openstack. The size is 1 GB. I have written files close to 1 GB onto the
> > Volume.   But when I do a ls inside the brick directory , the volume is present only on one gluster server brick. But it is empty on another server brick.  Files are meant to be
> > spread across both the bricks according to distributed volume definition.
> > 
> > On the VM:
> > --------------
> > 
> > # ls -al
> > total 1013417
> > drwxr-xr-x    3 root     root          4096 Jun  1 22:03 .
> > drwxrwxr-x    3 root     root          1024 Jun  1 21:24 ..
> > -rw-------    1 root     root     31478251520 Jun  1 21:52 file
> > -rw-------    1 root     root     157391257600 Jun  1 21:54 file1
> > -rw-------    1 root     root     629565030400 Jun  1 21:55 file2
> > -rw-------    1 root     root     708260659200 Jun  1 21:59 file3
> > -rw-------    1 root     root     6295650304 Jun  1 22:01 file4
> > -rw-------    1 root     root     39333801984 Jun  1 22:01 file5
> > -rw-------    1 root     root     78643200000 Jun  1 22:04 file6
> > drwx------    2 root     root         16384 Jun  1 21:24 lost+found
> > ----------
> > # du -sch *
> > 20.0M   file
> > 100.0M  file1
> > 400.0M  file2
> > 454.0M  file3
> > 4.0M    file4
> > 11.6M   file5
> > 0       file6
> > 16.0K   lost+found
> > 989.7M  total
> > ------------------------
> > 
> > 
> > On the gluster server nodes:
> > -----------------------
> > root at primary:/export/sdd1/brick# ll
> > total 12
> > drwxr-xr-x 2 root root 4096 Jun  2 04:08 ./ drwxr-xr-x 4 root root
> > 4096 May 27 08:42 ../ root at primary:/export/sdd1/brick#
> > --------------------------
> > 
> > root at secondary:/export/sdd1/brick# ll total 1046536
> > drwxr-xr-x 2 root root       4096 Jun  2 08:51 ./
> > drwxr-xr-x 4 root root       4096 May 27 08:43 ../
> > -rw-rw-rw- 1  108  115 1073741824 Jun  2 09:35
> > volume-0ec560be-997f-46da-9ec8-e9d6627f2de1
> > root at secondary:/export/sdd1/brick#
> > ---------------------------------
> > 
> > 
> > Thanks
> > Kumar
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > -----Original Message-----
> > From: Franco Broi [mailto:franco.broi at iongeo.com]
> > Sent: Monday, June 02, 2014 6:35 PM
> > To: Gnan Kumar, Yalla
> > Cc: gluster-users at gluster.org
> > Subject: Re: [Gluster-users] Distributed volumes
> > 
> > Just do an ls on the bricks, the paths are the same as the mounted filesystem.
> > 
> > On Mon, 2014-06-02 at 12:26 +0000, yalla.gnan.kumar at accenture.com
> > wrote:
> > > Hi All,
> > >
> > >
> > >
> > > I have created a distributed volume of 1 GB ,  using two bricks from 
> > > two different servers.
> > >
> > > I have written 7 files whose sizes are a total of  1 GB.
> > >
> > > How can I check that files are distributed on both the bricks ?
> > >
> > >
> > >
> > >
> > >
> > > Thanks
> > >
> > > Kumar
> > >
> > >
> > >
> > >
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