<div dir="ltr">We tested with both, and experienced the same behavior using both fencing strategies: an abandoned DLM lockspace. More than once, within this forum, I've heard that DLM only supports power fencing, but without explanation. Can you explain why DLM requires power fencing? <div><br></div><div>Best,</div><div>-Pat</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Oct 1, 2018 at 1:38 PM Vladislav Bogdanov <<a href="mailto:bubble@hoster-ok.com">bubble@hoster-ok.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On October 1, 2018 4:55:07 PM UTC, Patrick Whitney <<a href="mailto:pwhitney@luminoso.com" target="_blank">pwhitney@luminoso.com</a>> wrote:<br>
>><br>
>> Fencing in clustering is always required, but unlike pacemaker that<br>
>lets<br>
>> you turn it off and take your chances, DLM doesn't.<br>
><br>
><br>
>As a matter of fact, DLM has a setting "enable_fencing=0|1" for what<br>
>that's<br>
>worth.<br>
><br>
><br>
>> You must have<br>
>> working fencing for DLM (and anything using it) to function<br>
>correctly.<br>
>><br>
><br>
>We do have fencing enabled in the cluster; we've tested both node level<br>
>fencing and resource fencing; DLM behaved identically in both<br>
>scenarios,<br>
>until we set it to 'enable_fencing=0' in the dlm.conf file.<br>
<br>
Do you have power or fabric fencing? Dlm requires former.<br>
<br>
<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Patrick Whitney<div>DevOps Engineer -- Tools</div></div></div>