DRBD

[Mike McGrath]

I have a small research project if someone is interested in taking it up.
I want to know of Debian, Ubuntu, SuSE and the other major distributions,
How many of them include DRBD by default or via some official channel.


Also, of people on this list, how many of you use DRBD, in what capacity
and what do you think of it?

	-Mike

[Giulio Fidente]

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Mike McGrath wrote:
>  I have a small research project if someone is interested in taking it
> up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel. 
can't help on this, but

>  Also, of people on this list, how many of you use DRBD, in what
> capacity
>  and what do you think of it? 
I used it for many purposes ... I think it needs more attention during
the configuration phase that how it could appear at a first look, but
then it's quite stable and fast too

I also managed to use in the active/active mode, with gfs, and in that
specific case it wasn't very reliable on heavy loads when it frequently
ended hanging the gfs locker, but this was circa 1 year ago!

- --
Giulio Fidente, key 08D733BA
You must be the change you want to see in the world. -- Gandhi
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[David Nalley]

On Thu, Jan 15, 2009 at 11:17 AM, Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:
>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what capacity
>  and what do you think of it?
>
>         -Mike
>  

Debian:  Has it.
http://packages.debian.org/search?searchon=sourcenames&keywords=drbd

SuSE/openSuSE: Has it
Find the following note in the drbd changelog for the src rpm:
* Mon Jan 29 2007 - lmb(a)suse.de
  - Mark drbd as supported by Novell.

Ubuntu: Has it
http://packages.ubuntu.com/search?keywords=drbd&searchon=names&su...

[John Anderson]

CentOS does include them and I use them occasionally. The only specifc
instance I can think of off hand was an HA mailfilter.

Ubuntu / Debian does not yet include them as far as I am aware.

It's not a bad option for replicating on non-SAN boxes.

It would be really nice to see it accepted upstream, probably see
quite a bit more use.

On Thu, Jan 15, 2009 at 10:17 AM, Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:
>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what capacity
>  and what do you think of it?
>
>         -Mike
>
>  _______________________________________________
>  Fedora-infrastructure-list mailing list
>  Fedora-infrastructure-list(a)redhat.com
>  https://www.redhat.com/mailman/listinfo/fedora-infrastructure-list
>

[David Nalley]

On Thu, Jan 15, 2009 at 11:17 AM, Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:
>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what capacity
>  and what do you think of it?
>
>         -Mike
>  

Debian:  Has it.
http://packages.debian.org/search?searchon=sourcenames&keywords=drbd

SuSE/openSuSE: Has it
Find the following note in the drbd changelog for the src rpm:
* Mon Jan 29 2007 - lmb(a)suse.de
 - Mark drbd as supported by Novell.

Ubuntu: Has it
http://packages.ubuntu.com/search?keywords=drbd&searchon=names&su...

[Ramez Hanna]

so what is the project?

On Thu, Jan 15, 2009 at 6:17 PM, Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:

>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what capacity
>  and what do you think of it?
>
>         -Mike
>
>  _______________________________________________
>  Fedora-infrastructure-list mailing list
>  Fedora-infrastructure-list(a)redhat.com
>  https://www.redhat.com/mailman/listinfo/fedora-infrastructure-list
>

[Mike McGrath]

On Thu, 15 Jan 2009, Ramez Hanna wrote:

>  so what is the project?
>  
Finding out if Fedora/RHEL is one of the few major distros without drbd.

	-Mike

>  On Thu, Jan 15, 2009 at 6:17 PM, Mike McGrath
> <mmcgrath(a)redhat.com&gt; wrote:
>
>        I have a small research project if someone is interested in taking it up.
>        I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>        How many of them include DRBD by default or via some official channel.
>
>
>        Also, of people on this list, how many of you use DRBD, in what capacity
>        and what do you think of it?
>
>               -Mike
>
>        _______________________________________________
>        Fedora-infrastructure-list mailing list
>        Fedora-infrastructure-list(a)redhat.com
>        https://www.redhat.com/mailman/listinfo/fedora-infrastructure-list
>
>
>
>

[David Nalley]

On Thu, Jan 15, 2009 at 11:17 AM, Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:
>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what capacity
>  and what do you think of it? 

Debian:  Has it.
http://packages.debian.org/search?searchon=sourcenames&keywords=drbd

SuSE/openSuSE: Has it
Find the following note in the drbd changelog for the src rpm:
* Mon Jan 29 2007 - lmb(a)suse.de
 - Mark drbd as supported by Novell.

Ubuntu: Has it
http://packages.ubuntu.com/search?keywords=drbd&searchon=names&su...

[FD Cami]

On Thu, 15 Jan 2009 10:17:53 -0600 (CST)
Mike McGrath <mmcgrath(a)redhat.com&gt; wrote:

>  
>  I have a small research project if someone is interested in taking it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major distributions,
>  How many of them include DRBD by default or via some official channel. 
CentOS packages DRBD in -extra.
http://mirrors.ircam.fr/pub/CentOS/5.2/extras/x86_64/RPMS/

Ubuntu has it, including the 8.04 LTS :
http://packages.ubuntu.com/search?suite=hardy&searchon=names&keyw...

Gentoo has it :
http://packages.gentoo.org/package/sys-cluster/drbd

As others have already pointed out, it seems present in all if not all
major distributions used in any server role. Having it in Fedora/RHEL
would provide us with a very nice SAN-like capability (coupled with
iSCSI target support).

>  Also, of people on this list, how many of you use DRBD, in what
> capacity
>  and what do you think of it? 
I've used the CentOS-extra package in master/slave replication as in :
http://www.drbd.org/home/mirroring/
It also supports master/master but I've never needed it and it's not
recommended to use it anyway.

I am seriously considering to use it at work to replicate about 2TB of data
(Xen VMs) accross a 4x1Gb/s aggregated link.
I have not been able to fault it yet and I will probably have more results
in the coming weeks.

--
fdc

[Jeffrey Ollie]

On Thu, Jan 15, 2009 at 3:16 PM, FD Cami <francois.cami(a)free.fr&gt; wrote:
>  As others have already pointed out, it seems present in all if not all
>  major distributions used in any server role. Having it in Fedora/RHEL
>  would provide us with a very nice SAN-like capability (coupled with
>  iSCSI target support). 
> From what I've seen so far, DRBD seems to require kernel modules
> that 
aren't upstream.  Anyone know the story on that?  Getting the kernel
modules upstream would make it much easier to get DRBD into Fedora.

-- 
Jeff Ollie

"You know, I used to think it was awful that life was so unfair. Then
I thought, wouldn't it be much worse if life were fair, and all the
terrible things that happen to us come because we actually deserve
them? So, now I take great comfort in the general hostility and
unfairness of the universe."

	-- Marcus to Franklin in Babylon 5: "A Late Delivery from Avalon"

[Oliver Falk]

Mike McGrath wrote:
>  On Thu, 15 Jan 2009, Ramez Hanna wrote:
>  
> > so what is the project?
> >
>  Finding out if Fedora/RHEL is one of the few major distros without drbd. 
It *IS*! :-(

Although it's not too hard to generate RPMs from the tarballs and use it...

I'd be happy to see it included in Fedora/RHEL! I guess the guys from 
Linbit (located here in Austria), wouldn't mind as well :-)

-of

[Mike McGrath]

On Fri, 16 Jan 2009, Oliver Falk wrote:

>  Mike McGrath wrote:
>  > On Thu, 15 Jan 2009, Ramez Hanna wrote:
>  >
>  > > so what is the project?
>  > >
>  > Finding out if Fedora/RHEL is one of the few major distros without drbd.
>
>  It *IS*! :-(
>
>  Although it's not too hard to generate RPMs from the tarballs and use it...
>
>  I'd be happy to see it included in Fedora/RHEL! I guess the guys from Linbit
>  (located here in Austria), wouldn't mind as well :-)
>  
I've been talking with those guys a bit too.  Seems the kernel module is
the last thing blocking getting this in.  I'm still trying to figure out
what our options are here.

	-Mike

[Ryan Ordway]

On Jan 15, 2009, at 8:17 AM, Mike McGrath wrote:

>  I have a small research project if someone is interested in taking  
>  it up.
>  I want to know of Debian, Ubuntu, SuSE and the other major  
>  distributions,
>  How many of them include DRBD by default or via some official channel.
>
>
>  Also, of people on this list, how many of you use DRBD, in what  
>  capacity
>  and what do you think of it? 

I love it. I use it in both active/active and active/passive modes.  
Saves me from having to hook some of my systems up to our SAN.

Ryan


--
Ryan Ordway                           E-mail: rordway(a)oregonstate.edu
Unix Systems Administrator               rordway(a)library.oregonstate.edu
OSU Libraries, Corvallis, OR 97331    Office: Valley Library #4657