[Gluster-users] iscsi with gluster i want to make it

Daniel Müller mueller at tropenklinik.de
Mon Feb 20 07:35:33 UTC 2012

Why use iscsi??? You can use gluster in replication on as much nodes as you want.
Working well on samba/cifs too. So you can mount the brick on every windows server.
For snapshots use rsnapshot on CENTOS. With openssh for windows you can integrate snapshots from your windows server too.

EDV Daniel Müller

Leitung EDV
Tropenklinik Paul-Lechler-Krankenhaus
Paul-Lechler-Str. 24
72076 Tübingen 
Tel.: 07071/206-463, Fax: 07071/206-499
eMail: mueller at tropenklinik.de
Internet: www.tropenklinik.de 

Von: gluster-users-bounces at gluster.org [mailto:gluster-users-bounces at gluster.org] Im Auftrag von Patrick Irvine
Gesendet: Samstag, 18. Februar 2012 07:19
An: gluster-users at gluster.org
Cc: viraj mastermind
Betreff: [Gluster-users] Re: iscsi with gluster i want to make it

Hi Viraj,

Gluster Ver. 3.x supports replication over WAN but currently very limited.  I assume it will expand as time moves on.

As for ISCSI.  I doubt Glusterfs will ever support ISCSI.  ISCSI operates at the block level.  Gluster only works on the filesystem level.  The only way to have iscsi on Gluster would be to export an iscsi target that is a file on gluster. 

As for snapshot and deduplication in CIFS, I really don't know,  I'll pass that on to the other Gluster-users :)

Hope this helped,


On 16/02/2012 9:28 PM, viraj mastermind wrote: 
Hi Pat,
Actually we are looking for product that will do replicated between server in WAN 
but it should also support iscsi as we will be mounting it on windows server, as we will be replicating data of windows volume
so i thought that if i could create a iscsi lun on linux system(centos) and mount it on windows server as a volume and then those iscsi lun can be replicated across the many server. actually we are preparing for DR.
we will create the DR server in AWS EC2
we tried some products and they are quite expensive so we are doing some research in open source.
Also does glusterfs support snapshot and deduplication in CIFS?
and when could glusterfs start supporting iSCSI any timeline given.
On Tue, Feb 14, 2012 at 8:44 PM, Patrick Irvine <pirv at cybersites.ca> wrote:
Hi Viraj,
My experience with LVM is quite limited, but I think I can help a bit.  Glusterfs is a file system only.  It does not contain the block level hooks required by LVM, so you will not be able to directly mount it as a block level device.  If you really want to use glusterfs as the back end for the LVM you would need to mount glusterfs into a directory and then use a loopback file on the glusterfs mount point and then use that loopback file for the LVM mount.
This approach seems like a lot of work.  What is your desired end product?  Do you want gluster to serve a filesystem that sits on top of an iscsi target?
Let me know if I have completely misunderstood what you where asking ☺
From: viraj mastermind [mailto:virajmastermind at gmail.com] 
Sent: Tuesday, February 14, 2012 5:50 AM
To: pirv at cybersites.ca
Subject: iscsi with gluster i want to make it
Hi Patrick,
the gluster community is not replying to my question 
can you tell me how to mount the lvm in the gluster fs as i have made two node in glusterfs
i have added two harddisk to mode the node and made it as a lvm for iscsi target to work
now i want to mount lvm on the glusterfs as 
some what like
mount -t glusterfs server1:/test-volume /dev/vg1/lvs
instead of mounting on to a folder
mount -t glusterfs server1:/test-volume /mnt/glusterfs
Please assist
Thanks and have a nice day

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