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<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>We don't have the HA
hardware required for lustre failover.</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>I have considered
using DRBD underneath the MGS file system to increase the availability, but am
not sure what the performance impacts are. The MDT/MGT are running on a
single machine using RAID 6. I feel reasonably well protected against a
disk failure, but I am still concerned about a machine
failure.</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>As I start looking
at this problem, I am curious as to what others are using.</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>Other than using
DRBD, it seems that I could run the back up nightly and transfer the data to our
secondary box and load it. Would that require stopping the MGS, can
that be done in a "dirty" state?</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>What other options
are out there?</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial size=2>Thanks in
advance!</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2>--</FONT></SPAN></DIV>
<DIV><SPAN class=917460821-19022008><FONT face=Arial
size=2>Andrew</FONT></SPAN></DIV></BODY></HTML>