[DRBD-user] bio would need to, but cannot, be split

Road Runner roadrt at gmail.com
Mon Dec 1 09:31:28 CET 2008

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

Hello Lars.

For your question, I do not work for Citrix but I have to work with some of
they products.
XenServer is one of them. As you may now the Express is free it lacks some
of the features of the other editions and this is the reason that I want to
combine DRBD with it.

I use drbd-8.2.7 with RPM created with DDK

I wold really like to make it work because it will allow me to work with 2
products that I like.

It will be great if you could help me with the solution for the drbd on lvm
in XenServer.

Thank you in advance

On Fri, Nov 28, 2008 at 1:27 PM, Lars Ellenberg
<lars.ellenberg at linbit.com>wrote:

> On Thu, Nov 27, 2008 at 12:26:24PM -0500, Road Runner wrote:
> > Hi
> >
> > We work with XenServer Express
> btw.
> proffessional curiosity:
> why?
> I mean why XenServer Express.
> there are so many virtualization products out there,
> even LINBIT has one ;)
> not anything pro or contra your choice,
> I'm just curious what your reasons are.
> or do you happen to work for citrix?
> > and we have encountered the "bio would need to,
> > but cannot, be split" problem you wrote about in DRBD mailing list.
> now. I suppose that "you" was me.
> I write a lot on (this) mailing list,
> so, do you mind to put me in context with a reference to that message?
> > How ever we didn't understood where to change the  (max_phys_segments =
> 1,
> > max_hw_segment = 1)
> you are not supposed to change those.
> we did that for you.
> > We tried to change this values in drbd_nl.c before the compilation,
> > but it had no effect.
> would you like to post your (working and not working) patches for review?
> that makes it much easier to comment on them ;-)
> the drbd version you are using would be worth mentioning as well...
> and, before you start patching drbd yourself,
> why not ask us to do the integration work for you,
> and patch it if necessary?
> if you have any problems integrating drbd,
> contact LINBIT.
> I mean, that is what we are here for, right?
> --
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
> DRBD(R) and LINBIT(R) are registered trademarks of LINBIT, Austria.
> __
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