<br><font size=2 face="sans-serif">Dear David,</font>
<br>
<br><font size=2 face="sans-serif">you can build the primary node and then
use</font>
<br>
<br><font size=2 face="sans-serif">drbdsetup /dev/drbdx primary -o</font>
<br>
<br><font size=2 face="sans-serif">that will force the node to come up
and be primary.</font>
<br>
<br><font size=2 face="sans-serif">We do that on regular basis, e.g. when
reinstalling redundant systems.</font>
<br>
<br><font size=2 face="sans-serif">Can you please tell me which error message
you exactly get when trying to force it to be primary ?</font>
<br>
<br><font size=2 face="sans-serif">Soeren</font>
<br>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>"David Hansel"
<hanselzen@gmail.com></b> </font>
<br><font size=1 face="sans-serif">Sent by: drbd-user-bounces@lists.linbit.com</font>
<p><font size=1 face="sans-serif">07.05.2008 12:22</font>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">nico@vanderhorn.nl</font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td><font size=1 face="sans-serif">drbd-user@lists.linbit.com</font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [DRBD-user] Single Primary with
Missing Secondary</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><tt><font size=2>Hi Niko,<br>
<br>
May i know your drbd version?<br>
I've tried this before on 8.2.5 and it can't be done.<br>
When i force drbd to be a primary, the error message appear said that<br>
at least need 2 node to make it done.<br>
<br>
<br>
On Tue, May 6, 2008 at 5:31 AM, N.J. van der Horn (Nico)<br>
<nico@vanderhorn.nl> wrote:<br>
> Hi Paul !<br>
><br>
> Yes, that is perfectly possible, i did that several times.<br>
> Just build the first node and use it as primary.<br>
> There is no obstacle to use it and work with it until the loving<br>
> brother/sister comes in sight. ;-)<br>
> When you later add the second one, you start the initial sync,
then start<br>
> heartbeat also there.<br>
> Ok, this is a short answer....<br>
><br>
> Greets, Nico<br>
><br>
> Paul McEnery schreef:<br>
><br>
> ><br>
> ><br>
> ><br>
> > Hi All.<br>
> ><br>
> > Is it possible to initialise drbd on only one node, with a view
to adding<br>
> a second node at a later date (once it has been purchased)?<br>
> ><br>
> > I have a single server which needs to be setup as a storage server<br>
> presenting iSCSI luns to a number of other systems. The idea is that
if the<br>
> system works successfully, a second redundant storage server will
be<br>
> purchased which will mirror the primary (drbd + heartbeat). I am trying
to<br>
> set the primary up so that I can simply activate the secondary node
once it<br>
> has been purchased, without the need to rebuild from scratch. The
only<br>
> analogy I can think of is; this is similar to building a RAID 1 mirror
on a<br>
> single disk, specifying the second disk as "missing", as
mdadm allows you to<br>
> do. Once you purchase a second disk, you can simply copy the partition
table<br>
> and use mdadm to bring the disk into the array. Essentially, I would
like to<br>
> do the same with drbd, where the second node is not available from
the<br>
> outset, and may not be available for a few months.<br>
> ><br>
> > Does anyone know if this is possible with drbd? If not, I am
starting to<br>
> think along the lines of using a qemu secondary node during initial
setup,<br>
> which is later discarded. Can anyone think of an easier way for me
to get a<br>
> single node to become primary having never communicated with the secondary?<br>
> ><br>
> > TIA<br>
> ><br>
> > ------------------------------------------------------------------------<br>
> ><br>
> > _______________________________________________<br>
> > drbd-user mailing list<br>
> > drbd-user@lists.linbit.com<br>
> > </font></tt><a href="http://lists.linbit.com/mailman/listinfo/drbd-user"><tt><font size=2>http://lists.linbit.com/mailman/listinfo/drbd-user</font></tt></a><tt><font size=2><br>
> ><br>
> ><br>
><br>
> --<br>
> Behandeld door / Handled by: N.J. van der Horn (Nico)<br>
> ---<br>
> ICT Support Vanderhorn IT-works, </font></tt><a href=www.vanderhorn.nl><tt><font size=2>www.vanderhorn.nl</font></tt></a><tt><font size=2>,<br>
> Voorstraat 55, 3135 HW Vlaardingen, The Netherlands,<br>
> Tel +31 10 2486060, Fax +31 10 2486061<br>
><br>
><br>
> _______________________________________________<br>
> drbd-user mailing list<br>
> drbd-user@lists.linbit.com<br>
> </font></tt><a href="http://lists.linbit.com/mailman/listinfo/drbd-user"><tt><font size=2>http://lists.linbit.com/mailman/listinfo/drbd-user</font></tt></a><tt><font size=2><br>
><br>
<br>
<br>
<br>
-- <br>
Best Regards,<br>
David Hansel<br>
_______________________________________________<br>
drbd-user mailing list<br>
drbd-user@lists.linbit.com<br>
</font></tt><a href="http://lists.linbit.com/mailman/listinfo/drbd-user"><tt><font size=2>http://lists.linbit.com/mailman/listinfo/drbd-user</font></tt></a><tt><font size=2><br>
</font></tt>
<br>