Welcome, Acctualy, I'm try to poweroff my ESXi (6.7). Virtual machine with Ubuntu and redirected USB port with APC Back UPS CS 650, have nut-server and send info to ESXi. When battery is low, ESXi poweroff gracefully all VM and same ESX go down. This work fine and don't have any problem.
But important to me, is set to more offdelay on UPS than the default 60 sec. (cut off power socket when time is up from FSD command). file ups.conf [apc] driver = usbhid-ups port = auto desc = "APC" override.battery.charge.low = 90 offdelay = 90 ondelay = 120 UPS always cut off power socket after 60 sec (I'm try to set another offdelay example 90,120,30 etc, but offdelay is not change from 60 sec to option was set in config file). root@polimerVirtualbox:/etc/nut# upsc apc@localhost Init SSL without certificate database battery.charge: 92 battery.charge.low: 90 battery.charge.warning: 50 battery.date: 2018/08/15 battery.mfr.date: 2018/08/15 battery.runtime: 2220 battery.runtime.low: 120 battery.temperature: 29.2 battery.type: PbAc battery.voltage: 13.6 battery.voltage.nominal: 12.0 device.mfr: American Power Conversion device.model: Back-UPS CS 650 device.serial: QB0604333901 device.type: ups driver.name: usbhid-ups driver.parameter.offdelay: 90 driver.parameter.ondelay: 120 driver.parameter.pollfreq: 30 driver.parameter.pollinterval: 2 driver.parameter.port: auto driver.version: 2.7.1 driver.version.data: APC HID 0.95 driver.version.internal: 0.38 input.sensitivity: medium input.transfer.high: 266 input.transfer.low: 180 input.voltage: 236.0 input.voltage.nominal: 230 output.frequency: 50.0 output.voltage: 230.0 output.voltage.nominal: 230.0 ups.beeper.status: disabled ups.delay.shutdown: 90 ups.delay.start: 120 ups.firmware: 817.v3.I ups.firmware.aux: v3 ups.load: 3.0 ups.mfr: American Power Conversion ups.mfr.date: 2006/01/19 ups.model: Back-UPS CS 650 ups.productid: 0002 ups.realpower.nominal: 400 ups.serial: QB0604333901 ups.status: OL CHRG ups.test.result: No test initiated ups.timer.reboot: 0 ups.timer.shutdown: -1 ups.timer.start: 0 ups.vendorid: 051d Nut version: Ubuntu 14.04 (v 2.7.1 from repo) and Ubuntu server 18.04 (v. 2.7.4), on both version problem exist. I'm send debug file /lib/nut/usbhid-ups -a apc -DDD in attachement. I tested two different ones APC BackUPS CS 650 and on both problem occurred. I borrowed PowerWalker (driver blazer_usb), and all function + offdelay, ondelay works perfectly. 60 sec is to small time to close all VM and ESXi, and if I fail configure APC, I'm change UPS to PowerWalker. Maybe is a bug and if you say what it will debug the problem. Very similar problem is here https://alioth-lists.debian.net/pipermail/nut-upsuser/2015-January/009478.html Best Regards -- Karol Olszewski ipflow.pl
APC_BackUPS_CS_650.log.gz
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