HI,<br><br>I can think of a situation in which all servers have dual port IB cards and need failover of OpenSM to achieve HA.<br>As I know, OpenSM can only bind to 1 port at a time, so do I need to start 2 OpenSM in server A and 2 OpenSM in server B? Will they use the same guid2lid file? Do I need to set something in the config file or they will automatically communcate each other?<br>
Do I need to run sldd.sh manually or it will automatically sync with other OpenSM? <br><br>Thanks a lot.<br><br>Regards,<br>PN<br><br><br><br><br><div class="gmail_quote">2009/8/26 Hal Rosenstock <span dir="ltr"><<a href="mailto:hal.rosenstock@gmail.com">hal.rosenstock@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br>
<div><div class="im"><span class="gmail_quote">On 8/25/09, <b class="gmail_sendername">kovlensky@interia.pl</b> <kovlensky@interia.pl> wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Hi all,<br><br>Quick question - is there a need to run anything except opensmd deamons to provide failover capability on ib network in ofed 1.3?</blockquote>
<div> </div>
</div><div>In terms of SM failover, modulo bugs fixed relative to this feature since OFED 1.3 (there are a couple of things here which may affect your environment if I recall correctly), you only need to run more than 1 SM for this (one will become master, the other standby).</div>
<div class="im">
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;"> I'm aware that when master manager dies standby one comes in and manages the network, but that does not necessary means that lids are preserved, especially for nodes joining in. I used to run sldd.sh for distributing lids list on ofed 1.2.5, but while this script seems to be in place noone mentions necessity for it.</blockquote>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">So subnet manager failover is provided by running standby opensm. </blockquote><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">And how LID preservation is provided?</blockquote>
<div> </div>
</div><div>If you want LIDs to be preserved, the guid2lid file needs to be sync'd (copied from the master SM once it's fully assembled to the node which is running the standby SM). That's what the sldd.sh script does.</div>
<div> </div><font color="#888888">
<div>-- Hal</div></font><div class="im"><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">Regards,<br><br>Zdenek Kovlensky<br><br>----------------------------------------------------------------------<br>
Kup wlasne mieszkanie za 33 tys. zl!<br>Sprawdz >>> <a href="http://link.interia.pl/f22f2" target="_blank">http://link.interia.pl/f22f2</a><br><br>_______________________________________________<br>general mailing list<br>
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PN Lai<br>HPC Specialist<br>Galactic Computng Corp.<br>Tel: 86-755-26733939 ext 826<br>Mobile: 86-13823161729<br>Fax: 86-755-26733780<br>URL: <a href="http://www.galactic.com.hk">http://www.galactic.com.hk</a><br>