<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=utf-8">
<META content="MSHTML 6.00.2900.2963" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Hi !</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Like many other (well, at least since the last two
weeks since I've been following the list .. <grin>) I am also very
interested in the 0.8 brance due to its primary/primary role
ability.</FONT></DIV><FONT face=Arial size=2>
<DIV><BR>I have succesfully tested with GFS and OCFS2. Both seem te be working
just fine ... Doing a bonnie++ on both nodes at the same time (but in different
subdirectory's on the drbd0) seems to work without any problem.</DIV>
<DIV> </DIV>
<DIV>But ..... rebooting a node while the other stays active ... or faking
it's crash tends to lead upto a split brain as others have noticed. Even if
the 'broken one' has done nothing on its disks. Most of the times only a full
re-sync seemed to work. I have not tried the "drbdadm -- --discard-my-data
connect all" though, will do that at once !</DIV>
<DIV> </DIV>
<DIV>Would it be very hard to indeed 'detect' a broken (or rebooted) node and
let it catch-up with the running available primary?</DIV>
<DIV> </DIV>
<DIV>Yours,</DIV>
<DIV>Christiaan den Besten</DIV>
<DIV></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=igormorgado.listas@gmail.com
href="mailto:igormorgado.listas@gmail.com">Igor Morgado</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=drbd-user@linbit.com
href="mailto:drbd-user@linbit.com">drbd-user@linbit.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 17, 2006 3:28
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [DRBD-user] Re: DRBDv8 + LVM
(problems in cstate)(LONG)</DIV>
<DIV><BR></DIV>when I first met the problem I have tried to "invalidate" one
node to make the connection work. But that dont solved the problem.<BR><BR>and
yes. your solution solved the problem.<BR><BR>Thank you for all patience and
help. <BR><BR><BR><BR>
<DIV><SPAN class=gmail_quote>On 8/17/06, <B class=gmail_sendername>Lars
Ellenberg</B> <<A
href="mailto:Lars.Ellenberg@linbit.com">Lars.Ellenberg@linbit.com</A>>
wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">/
2006-08-16 16:59:29 -0300<BR>\ Igor Morgado:<BR>> the kern.log (im on
debian) it says more..<BR>><BR>> Aug 16 16:22:09 magratea kernel:
drbd0: conn( WFConnection -> WFReportParams )<BR>> Aug 16 16:22:09
magratea kernel: drbd0: Handshake successful: DRBD Network Protocol version
82 <BR><BR>> Aug 16 16:22:09 magratea kernel: drbd0: Split-Brain
detected, dropping connection!<BR><BR>there you are. that is the
reason.<BR><BR>> Aug 16 16:22:09 magratea kernel: drbd0: conn(
WFReportParams -> StandAlone ) <BR>><BR>> magratea:/# drbdadm
get-gi all<BR>>
5A114EE2F3E64BC3:7BED9741D8E63232:D9D7884582F7EA10:73F91785A227EB8E:1:1:0:0:0:0<BR>><BR>>
cricket:/# drbdadm get-gi all<BR>>
350557AFB917FE33:7BED9741D8E63233:D9D7884582F7EA11:73F91785A227EB8F:0:0:0:0:0:0
<BR><BR>first uuid differs, other (bitmap, history) uuids are
identical:<BR>data set has been modified independently, split-brain
detected...<BR><BR>to resolv this, you have to tell drbd<BR>which of the
independen modifications <BR>of the data set you want to discard.<BR><BR>to
do so:<BR> cricket# drbdadm -- --discard-my-data connect
all<BR> magratea# drbdadm connect all<BR><BR>should do the
trick.<BR><BR>now, we probably should be able to auto-resolv this <BR>if one
side is "inconsistent", as is aparently the case here.<BR><BR>--<BR>: Lars
Ellenberg Tel
+43-1-8178292-0 :<BR>: LINBIT Information Technologies
GmbH Fax
+43-1-8178292-82 : <BR>: Schoenbrunner Str. 244, A-1120
Vienna/Europe <A
href="http://www.linbit.com">http://www.linbit.com</A> :<BR>__<BR>please use
the "List-Reply" function of your email
client.<BR>_______________________________________________ <BR>drbd-user
mailing list<BR><A
href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</A><BR><A
href="http://lists.linbit.com/mailman/listinfo/drbd-user">http://lists.linbit.com/mailman/listinfo/drbd-user</A>
<BR></BLOCKQUOTE></DIV><BR>
<P>
<HR>
<P></P>_______________________________________________<BR>drbd-user mailing
list<BR>drbd-user@lists.linbit.com<BR>http://lists.linbit.com/mailman/listinfo/drbd-user<BR></BLOCKQUOTE></BODY></HTML>