<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">You probably need to connect those two. I think it can be down with somth like drbdadm connect or drbdadm up.<div>I can be wrong thou.</div><div>Regards,</div><div>M.</div><div><br><div><div>On 9, Apr2009, at 12:24 PM, guohuai li wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div class="hmmessage" style="font-size: 10pt; font-family: Verdana; ">Hi All,<br> <br>I met below problem, would you help to tell me how to handle it?<br> <br>Now has two machine: A (primary), B (seconday)<br>I installed DRBD8.3.0 on these two machines.<br> <br>1) Now A is primary, B is seconday.<br> <br>2) B power off<br> <br>3) Then, on machine A, issue command "/sbin/drbdadm primary r0", and issue command "/bin/mount /dev/drbd0 /usr/local/fountain/database/xyz"<br>cat /proc/drbd<br>found its status is "primary/unknown"<br>It is reasonably.<br> <br>4) Now B power on.<br>On machine A, issue command:<br>"/sbin/umount /dev/drbd0" and "/sbin/drbdadm secondary r0".<br> <br>And then, on machine B, issue command:<br>"/sbin/drbdadm primary r0", and issue command "/bin/mount /dev/drbd0 /usr/local/fountain/database/xyz"<br> <br>5) Now problem occurs:<br>On machine B, "primary/unknown", on machine A, "secondary/unknown"<br> <br>And I do above procedure two times, the second time, it is just like above; at the first time, the DRBD status is proper.<br> <br>Would you help to explain this?<span class="Apple-converted-space"> </span><br>Any other command is needed to avoid this problem ?<br> <br>Best regards,<br>Edward<br> <br> <br><br><hr>Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy!<span class="Apple-converted-space"> </span><a href="http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us" target="_new">Try it!</a>_______________________________________________<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></div></span></blockquote></div><br></div></body></html>