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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,<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 currently have DRBD setup with one server in a Colo in <st1:country-region
w:st="on">Ireland</st1:country-region> and the other in a Colo in <st1:country-region
w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region>. They are
running over a VPN which restricts the throughput to around 1-2Mbs due to
hardware (might swap this).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>They are both set to Protocol A (although C works too). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What I would like to know is what are the best setting for
sndbuf-size and timeout’s etc? the reason I ask is because usually very
little data at a time is written to these machines as they are mostly read
from. So in those cases I could get away with protocol C. However I have
switched to A as sometime I have to copy that data on the disks for tests or
upgrades (about once or twice a week). When I copy the data this could be up to
8Gb’s worth. My issue is this takes a long time to sync naturally, but I don’t
want it to slow the primary server down as other people still need to read/write
there little amounts without too much effect.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>When this is happening I could just detach the secondary
device from the DRBD and then reconnect it afterwards but as this does get
around the blocking but I was wondering if there is a better way.<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'>Thanks<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'>Mark <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'>*******************************************************************</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Mark Olliver BSc (Hons) MBCS CITP</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thermeon Europe Ltd</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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