<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
</head>
<body>
<div class="" style="word-wrap:break-word; line-break:after-white-space">I currently have a cluster set up using pacemaker/corosync on two CentOS 6 boxes (fully updated). It has been requested that I "upgrade" the boxes to CentOS 7 (full rebuild on separate
machine, obviously). What is it going to take to migrate the cluster with minimal downtime?
<div class=""><br class="">
</div>
<div class="">The cluster is currently a mix of ipaddr2 and lsb type resources, with a couple of other built-in ocf types (redis, for example). Presumably the IPAddr and redis resources would move across no problem, but the lsb type resources would need to
be converted to systemd resources. Given that (and perhaps other things?) would I be correct in assuming that I will not be able to simply add the new CentOS 7 box to the existing CentOS 6 cluster and have the config and everything move across automatically?</div>
<div class=""><br class="">
</div>
<div class="">If I do need to build a new CentOS cluster, how can I get it fully set up with all the resources, but NOT let it start anything until I perform the cutover? Obviously it would be a bad thing for both the CentOS 7 box and the existing CentOS 6
boxes to have the same IP's! Can I copy *any* of the config from the existing CentOS 6 boxes, or do I have to fully re-create all the resources from scratch on the CentOS 7 box? I'm assuming that initially having a "single node" cluster (until I can rebuild
the other CentOS 6 box to CentOS 7) won't be an issue.</div>
<div class=""><br class="">
</div>
<div class="">Thanks for any input you can provide!</div>
<div class="">
<div class="">
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; line-height:normal; orphans:2; widows:2; word-wrap:break-word; line-break:after-white-space">
<div class="" style="font-size:12px; font-weight:normal; font-style:normal; font-family:Helvetica,sans-serif">
<div class="" style="margin:0in 0in 0.0001pt; font-size:12pt; font-family:"Times New Roman",serif">
<span class="" style="font-size:9pt; font-family:Helvetica,sans-serif">-----------------------------------------------</span></div>
</div>
<div class="">
<div class="" style="margin:0in 0in 0.0001pt"><font face="Arial" class="">Israel Brewster</font></div>
</div>
<div class="">
<div class="" style="margin:0in 0in 0.0001pt"><font face="Arial" class="">Systems Analyst II</font></div>
</div>
<div class="">
<div class="" style="margin:0in 0in 0.0001pt"><font face="Arial" class="">5245 Airport Industrial Rd</font></div>
</div>
<div class="">
<div class="" style="margin:0in 0in 0.0001pt"><font face="Arial" class="">Fairbanks, AK 99709</font></div>
</div>
<div class="">
<div class="" style="margin:0in 0in 0.0001pt"><font face="Arial" class="">(907) 450-7293</font><font face="Helvetica, sans-serif" class="" style="font-size:9pt; font-weight:normal; font-style:normal; font-family:Helvetica"></font></div>
</div>
<div class="" style="font-size:12px; font-weight:normal; font-style:normal; font-family:Helvetica,sans-serif">
<div class="" style="margin:0in 0in 0.0001pt; font-size:12pt; font-family:"Times New Roman",serif">
<span class="" style="font-size:9pt; font-family:Helvetica,sans-serif">-----------------------------------------------</span></div>
</div>
</div>
<span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span><span><br class="x_Apple-interchange-newline" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
</span></span></span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span><span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span><span><span><span><span><span><span><span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</div>
</div>
<div><img src="cid:aefec794-a2c3-4c18-b9f4-9d7337d75346@flyravn.com"> </div>
<div style="word-wrap:break-word; line-break:after-white-space">
<div>
<div id="x_AppleMailSignature"><span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span></span><br class="x_Apple-interchange-newline">
<span class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none; display:inline!important; float:none"> </span><br class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
<span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span><span><span><span><span><span><span><br class="x_Apple-interchange-newline">
<span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</div>
</div>
<div><img src="cid:21205301-49fb-4904-91e9-db839809dbfb@flyravn.com"> </div>
<div style="word-wrap:break-word; line-break:after-white-space">
<div>
<div id="x_AppleMailSignature"><span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment">
<div style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
<span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span class="x_Apple-string-attachment"><span></span>
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span><br class="x_Apple-interchange-newline">
<br class="x_Apple-interchange-newline">
<br class="x_Apple-interchange-newline">
<br class="x_Apple-interchange-newline">
</span></div>
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span><br class="x_Apple-interchange-newline" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
<span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span><span><span></span></span></span></span></span></div>
</span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space">
<div class="">
<div class=""><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span><span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span><span><span><span><span><span><span>
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none">
<span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none"><span><span><span><span><span><span><span><span><span>
<div class="" style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span><span style="color:rgb(0,0,0); font-family:Helvetica; font-size:12px; font-style:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; text-decoration:none"><span><span><span></span></span></span></span></span></div>
</span></span></span></span></span></span></span></span></span></span></span></span></span></div>
</span></span></span></span></span></span></span></span></span></span></span></span></span></div>
<br class="">
</div>
</div>
</body>
</html>