Friday, 2022-05-27

opendevreviewSteve Baker proposed openstack/sushy-tools master: Add SecureBoot support to the emulator, all drivers  https://review.opendev.org/c/openstack/sushy-tools/+/84226602:55
opendevreviewSteve Baker proposed openstack/sushy-tools master: Use libvirt automatic firmware for UEFI boot mode  https://review.opendev.org/c/openstack/sushy-tools/+/84165302:55
opendevreviewSteve Baker proposed openstack/sushy-tools master: Implement set_secure_boot for libvirt driver  https://review.opendev.org/c/openstack/sushy-tools/+/84355702:55
opendevreviewSteve Baker proposed openstack/ironic master: Switch to q35 machine type for test nodes  https://review.opendev.org/c/openstack/ironic/+/84355803:05
opendevreviewSteve Baker proposed openstack/ironic master: Use libvirt automatic firmware  https://review.opendev.org/c/openstack/ironic/+/84356003:29
opendevreviewSteve Baker proposed openstack/bifrost master: Use automatic firmware detection for test nodes  https://review.opendev.org/c/openstack/bifrost/+/84356604:29
kamlesh6808cGood morning Ironic !06:29
jm1dtantsur: o/ you may want to use aoc's stable/1.0.0 branch in bifrost's stable/yoga branches? https://review.opendev.org/c/openstack/ansible-collections-openstack/+/84356909:13
opendevreviewAmeya Raut proposed openstack/ironic-tempest-plugin master: Add idrac OOB inspection test cases  https://review.opendev.org/c/openstack/ironic-tempest-plugin/+/84359009:58
iurygregorygood morning Ironic10:47
iurygregoryjm1, dtantsur is on PTO today10:47
jm1iurygregory: ok, thanks!10:49
jaychettyHello, What's the minimum hardware requirement for a compute node to enable ironic? is BMC a must?16:50
TheJuliajaychetty: a compute node as in baremetal to be deployed? or a compute node as in something to run the nova-compute service and sync with ironic/handle orchustration from Nova's Point of View16:51
jaychettyI'm noob to OpenStack so please bare with me.  A compute node as in baremetal to be deployed is what I think I'm looking for. let me ask the question in a different way16:55
TheJuliaThat is what I thought, but I wanted to make sure16:56
TheJuliagenerally, a BMC is recommended for out of band management, but people use SNMP power strips16:56
jaychettyI'm planning to add client and edge devices as nodes that users can request, these are not servers and so they don't have BMC. Will ironic work with such nodes?  16:57
TheJuliaThat snmp power strip territy is becoming more treacherous with UEFI and OSes asserting new boot defaults16:57
TheJuliajaychetty: can they network boot? Is there a means of power control?16:57
TheJuliaMinimum requirements are really what is required to run the ramdisk. Upstream we run a super small ramdisk, but generally we recommend a full ramdisk based on ubuntu or centos. If your just bios booting, ~1.5G of ram, if your UEFI booting ~2.5G of ram minimum16:59
jaychettysome can network book and we can add PDUs for power control16:59
TheJuliayeah, then that is doable16:59
TheJuliaNobodyCam: you should start a "no-bmc working group"16:59
TheJuliafor the record, the lowest end spec thing I've ever deployed with ironic is individual blade cards in a first generation HP Moonshot17:00
TheJuliaand that worked like a champ17:01
TheJuliahttps://docs.openstack.org/ironic/latest/admin/drivers/snmp.html17:01
jaychettyTheJulia: Thank you for the link, I was going to ask just that.17:02
TheJuliaNobodyCam and some of his coworkers which may or may not be on long weekends right now... use a lot of the snmp power driver stuff17:03
TheJuliaNobodyCam: which reminds me... I need to follow-up on that driver addition17:03
TheJuliajaychetty: if you have any questions, feel free to ask. It is friday, and a huge portion of our contributors are in the EU17:10
TheJuliaI, in the mean time, am likely going to go lay down because I'm not feeling good, but I'll try to respond to any questions later.17:11
jaychettyTheJulia: Thank you very much. This channel is awesome! 17:16
jaychettyI need to research on ramdisk, SNMP, power control(PDUs) and how all of these can work with ironic.17:34
ashinclouds[m]Our admin documentation should provide clarity on a lot of that.17:35
jaychettyashinclouds: I'll check it out, thank you17:38
sschmitt_I actually have an SNMP related question: we're trying to use that method with a PDU from a company called "Server Tech" (generic I know), which is build for three phase power. This means each outlet has a prefix for what two phases its on. There are essentially three banks of 16 outles with IDs of "AA2" or "AB15" etc. On the SNMP side for controlling them, this means that a given outlet need a three digit index. I think we could18:07
sschmitt_ write a driver for it, but it seems like the outlet ID validation outside of the specific driver might still pose a problem since its enforcing a single int for the outlet. Any thoughts on getting around that?18:07
TheJuliasshnaidm: no thoughts offhand...  Hm... three phase needed per node, or 208 on two switches? or... well19:08
TheJuliahmm... I guess I'm struggling to mentally model it completely in my head19:08
sschmittI don't fully conceptually get it either still, but what I understand is that there are three hot wires (as opposed to one normally), so these three banks are split between those19:43
TheJuliaSo that is likely okay because any distinct circuit would be a blend of three phases, two distinct phases, or a single phase19:52
TheJuliaYou can’t individually switch a leg off a three phase transformer or bad things happen19:52
TheJuliaAnd multiphase Pdus have been a thing for a while in data centers… some servers get 120-ish volts… some can get 208 as they are on two phases of the three phase explicitly19:54
* TheJulia is a repository of semi-useless knowledge19:57
* TheJulia is also an electrical inspector’s worst nightmare19:57
sschmittHahaha19:57
sschmittAgain I'm not sure electrically how it works exactly, all I know is that SNMP wise it is different than the other ones19:58
TheJuliaThe company that did my panel upgrade tried to get me to go work for them….19:58
TheJuliaHmmm interesting…19:58
TheJuliaIf you have a model number, I would be curious19:59
sschmitthttps://www.servertech.com/power-distribution-unit-pdu/switched-pops-pdu/0u-vertical-2G3320:01
TheJuliaSo yeah, each port is two phases with a 208v output voltage20:08
TheJuliaEach plug is two of three legs of three phase power20:10
TheJuliaYou have l1, l2, and a physical earth ground20:11
TheJuliaNo neutral like in 120v20:11
TheJuliaNeutrals are from when you center tap a transformer20:11
TheJuliaWhere split phase terminology comes from20:12
sschmittAhhh20:14
TheJuliaIf your in the us, your 240 outlets/plugs are from each side of the transformer, 120 is from just one side and the center tap which also gets bonded to physical earth ground20:16
* TheJulia may also be pondering taking the home completely off-grid if California implements a solar tax20:16
TheJuliaWell, more like mandatory profit for your utility company tax20:17
sschmittThat does ring a bell from a Technology Connections video20:17
TheJulia\o/20:20
*** buhman_ is now known as buhman22:14

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