On 06/09/16 10:35 -0500, Ken Gaillot wrote: > On 09/06/2016 10:20 AM, Dan Swartzendruber wrote: >> On 2016-09-06 10:59, Ken Gaillot wrote: >> >> [snip] >> >>> I thought power-wait was intended for this situation, where the node's >>> power supply can survive a brief outage, so a delay is needed to ensure >>> it drains. In any case, I know people are using it for that. >>> >>> Are there any drawbacks to using power-wait for this purpose, even if >>> that wasn't its original intent? Is it just that the "on" will get the >>> delay as well? >> >> I can't speak to the first part of your question, but for me the second >> part is a definite YES. The issue is that I want a long enough delay to >> be sure the host is D E A D and not writing to the pool anymore; but >> that delay is now multiplied by 2, and if it gets "too long", vsphere >> guests can start getting disk I/O errors... > > Ah, Marek's suggestions are the best way out, then. Fence agents are > usually simple shell scripts, so adding a power-wait-off option > shouldn't be difficult.
Little correction, they are almost exclusively _Python_ scripts, but that doesn't change much. Just a basic understanding of fencing library (part of fence-agents) and perhaps its slight modification will be needed. -- Jan (Poki)
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