<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Make sure both nodes are synchronized with NTP.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:10.5pt;color:black'>Dennis Heim | Solution Architect (Collaboration)</span></b><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;color:black'>World Wide Technology, Inc. | 314-212-1814<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;color:black'><o:p> </o:p></span></p><p class=MsoNormal><b><i><span style='color:#00007F'>PS Engineering: </span></i></b><i><span style='color:#00007F'> Innovate & Ignite.</span></i><span style='font-size:13.5pt;color:black'><o:p></o:p></span></p><p class=MsoNormal><b><span style='color:#1F497D'><o:p> </o:p></span></b></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>Mike <br><b>Sent:</b> Tuesday, January 07, 2014 1:30 PM<br><b>To:</b> 'Chris Ward (chrward)'; 'Cisco VOIP'<br><b>Subject:</b> Re: [cisco-voip] Unity Connection 9.1 Split brain<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>Thanks Chris I’ll open a TAC case<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cisco-voip [<a href="mailto:cisco-voip-bounces@puck.nether.net">mailto:cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Chris Ward (chrward)<br><b>Sent:</b> Tuesday, January 07, 2014 10:02 AM<br><b>To:</b> Mike ; 'Cisco VOIP'<br><b>Subject:</b> Re: [cisco-voip] Unity Connection 9.1 Split brain<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>Call TAC and have them check.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Split brain is the recovery process and should resolve to a normal state. When the HA pair has been out of contact with each other, upon reconnecting, they enter Split Brian Recovery (SBR) mode. They are essentially doing a line by line comparison of the database and syncing information between them. If information on the Pub and Sub continues to change during this process or if communication between the pair continues to drop, SBR would either continue to run until they are in sync or SBR may need to restart.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>We have seen some cases where continually interrupting SBR can result in a hung state. I would not reboot the sub until you talk to TAC and have them take a look however, so that you don’t make it worse if it is still actually processing. Although 3 days does seem long for most cases, how many users and ports is this deployment?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='color:#1F497D'>+Chris<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>TME - Unity Connection and MediaSense<o:p></o:p></span></p></div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cisco-voip [<a href="mailto:cisco-voip-bounces@puck.nether.net">mailto:cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Mike <br><b>Sent:</b> Tuesday, January 07, 2014 9:32 AM<br><b>To:</b> 'Cisco VOIP'<br><b>Subject:</b> [cisco-voip] Unity Connection 9.1 Split brain<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Will Split Brain auto-recover? Mines been in SB for 3 days the pub is working fine should I just reboot the sub?<o:p></o:p></p></div></body></html>