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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi everyone,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m trying out drbd-0.6.12 on two systems both running
Linux-2.4.22. The setup went OK as `drbdsetup /dev/nb0 replicate` tests shows that
the primary node’s partition indeed gets replicated on the configured partition
of the other node. The same scenario is also evident upon doing a `drbd start`
on each of the nodes (after a fresh boot).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Now that manual invocation of the “sync’ing”
tools work, my queries are as follows:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1. I’m wondering on how/when will drbd automatically
synch the secondary node, if I do not invoke the tools manually (note that I’m
using a 0.6.12 release). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m also trying out the “inittimeout”
parameter on my configs, in order to avoid the wait-with-user-intervention
state during system startup. And I believe this is where “incon-degr-cmd”
should come in if I wish to automate my synch’ing. Is this a sane way to
go?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2. How can I instruct drbd NOT to synch the whole partition
(device), but only parts where changes occurred? Or is this possible with drbd?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>3. My final plan with drbd is to use it along with heartbeat,
and make it serve as an HA/failover database mirror. It seems to me that
extending the drbd bash script, or creating additional scripts/tools and
placing them on heartbeats resources *should* do fine. I googled however, that
linux-mon *is/seems* needed in order to implement a more robust failover
cluster. Can anyone shed some more light on how to properly implement my target
HA/failover mirroring plans using drbd? Any links are very much welcome.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>TIA – Vic<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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