topic Re: ML350 G6 UPS issues? in ProLiant Servers (ML,DL,SL)

ML350 G6 UPS issues?

johnv_2 — Sat, 12 Dec 2009 14:11:53 GMT

I am having a weird issue with my new ML350 G6 server. It is setup through a UPS to provide power protection. Last night we had a power outage and the server immediately went off, even though other devices connected to the UPS were still powered on. I have checked to UPS to verify that it is not too much load for it and it is fine and i also verifies that it was plugged into a backed up outlet. I did a test today with the UPS and when the UPS goes into backup power the server shuts down and you can here like a relay clicking inside of the server. Does anyone have any ideas on what is going on?

PS...This server is only configured with one power supply from the factory.

Thanks,

John

Re: ML350 G6 UPS issues?

marcus1234 — Thu, 23 Mar 2017 13:45:40 GMT

psu could be faulty

and ups battery may not be fully charged yet
the server does not care where it gets power as long asit is enough,

try the powersuply in the other bay in the back does the powersupply work in both bays , does it have black trace arc marks on its tips , if so replace power supply and the power backplabe in the server and do not connect to the ups till you are sure ups is setup correct,,

This is how we thank in the forum

http://forums11.itrc.hp.com/service/forums/helptips.do?#33

Re: ML350 G6 UPS issues?

marcus1234 — Sat, 12 Dec 2009 22:19:02 GMT

all thanks to Matti Kurkela he answered a post similar looks like a good answer for you too

Some UPSes have a special "bypass" outlet for laser printers or other high-peak-load devices. This outlet has the same over-voltage and RFI protection as the rest of the UPS, but it does NOT offer any protection against power failures.

Are you sure you did not plug your DL380 G6 into such a special UPS outlet?

Some UPSes have multiple "load groups" allowing the UPS control program to shut down some UPS outlets while continuing to provide power for others. If such an UPS is mis-configured, it may switch off one of the load groups immediately.

Re: ML350 G6 UPS issues?

Juan C Pacheco — Mon, 14 Dec 2009 00:25:22 GMT

I have the same problem with my proliant ML350 G6 i have tried with 3 differents UPS (APC 1.5KVA, Tripplite 1.1KVA and a Deltec UPS 1.1Kva). I have checked the power cable, the ups outlet and the UPS batteries. I Don't know if the server just work with HP UPS or if I have to make some setup on the BIOS or BIOS update.

Please help me ... this server is a pre-configured model from HP with one power supply

Thanks

JC

Re: ML350 G6 UPS issues?

Pogumirskiy Nikolay — Mon, 14 Dec 2009 04:17:04 GMT

johnv
Please post your UPS model. If server use "active PFC" power supply some UPS may have a problem when it "on battery" state. The problem is in approximation of output voltage used by UPS. When it use step-form not sine wave voltage server may switch off.

Re: ML350 G6 UPS issues?

johnv_2 — Mon, 14 Dec 2009 12:57:45 GMT

I have the APC UPS listed below. I verified that the power consumption is well within the limits of the UPS and wehn I did my testing the only thing connected was the UPS. Do you think the PSU in the HP server does not like the sinewave that the UPS is producing? This is now the third post I have seen with people having the same issue.

APC BACK-UPS RS1500VA LCD 120V

John

Re: ML350 G6 UPS issues?

Pogumirskiy Nikolay — Tue, 15 Dec 2009 04:49:43 GMT

Yes, APC BACK-series is low-cost and use stepped approximation to a sinewave. I recommend you to test ML350G6 with APC Smart-series if it is possible.

Re: ML350 G6 UPS issues?

Tom Szabo — Tue, 12 Jan 2010 15:07:08 GMT

John,

Have you had any luck with this issue? I'm having the EXACT same problem, we've replaced power supplies, power supply backplane, etc and it's still happening. HP has been no help at all (other than throwing hardware replacements at it).

Thanks

Re: ML350 G6 UPS issues?

johnv_2 — Tue, 12 Jan 2010 15:47:12 GMT

Yup,

You need a UPS with a true sinewave output. I found someone local selling off a APC Smart-UPS 1500. Plugged it in and it works great.

John

Re: ML350 G6 UPS issues?

Tom Szabo — Tue, 12 Jan 2010 15:48:18 GMT

Thanks a lot, I was just coming to this realization talking to HP again. Funny that they can't tell me exactly what a power supply in one of their products needs.

Re: ML350 G6 UPS issues?

alex_sun — Wed, 13 Jan 2010 02:57:32 GMT

ML350G6 Power Supply Max. Inrush Current 30A , Max. Inrush Current duration 20mS. view UPS Specifications.

Re: ML350 G6 UPS issues?

paul lowe_2 — Thu, 14 Jan 2010 12:14:42 GMT

John, Do you have the exact model number of your new UPS, I am having the same issue.

Cheers.

Re: ML350 G6 UPS issues?

johnv_2 — Thu, 14 Jan 2010 13:44:43 GMT

APC SUA1500

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=SUA1500

John

Re: ML350 G6 UPS issues?

andy-x — Sat, 16 Jan 2010 15:49:22 GMT

I have a ML350 G6 with two power supply and a Tecnoware sine output 1,5Kw and work very well.
When i try with low cost UPS i have many problem. With UPS is best not joking...
sorry for my english.

Re: ML350 G6 UPS issues?

Wayne Henegar — Fri, 29 Jan 2010 21:41:47 GMT

I have the very same problem. HP support "thinks" that 1500va UPS should be plenty. I even have separate UPS's on each Power supply, and it shuts down immediately when power is removed from UPS.

Re: ML350 G6 UPS issues?

johnv_2 — Sat, 30 Jan 2010 00:15:59 GMT

What model UPS's are you using?

John

Re: ML350 G6 UPS issues?

Wayne Henegar — Sat, 30 Jan 2010 02:52:43 GMT

I originally used an APC 750. When that wasn't adequate I switched to an APC Smart-UPS 1500. Currently I have one power supply plugged to the wall outlet, and the other to the 1500.

Re: ML350 G6 UPS issues?

johnv_2 — Sat, 30 Jan 2010 02:56:21 GMT

You should not have any issue with that setup. Maybe you have an issue with the switching of the power supplies when one fails. Also, I think there is a bios setting how it the computer treats the power supplies, you may want to check that.

John

Re: ML350 G6 UPS issues?

Wayne Henegar — Sat, 30 Jan 2010 03:01:49 GMT

I thought about changing the power supply setting in the BIOS to BALANCED. Currently it is (can't quite remember the terms) High Efficiency...that uses both PS's. I also need to figure out how to set it to restart after a power outage. Sometimes it will, but it usually requires a press of the power button to restart.

Re: ML350 G6 UPS issues?

Wayne Henegar — Sat, 30 Jan 2010 14:46:46 GMT

Hey everyone,

I have been checking the HP SUPPORT FORUM and the HP IT RESOURCE CENTER. Threads are present on both about the problems I am having. 1) the ML350 G6 powers off for no know reason and does not restart (in these cases there is no apparent loss of AC power), and 2) the ML350 G6 does not stay powered-on during power outage even when on UPS of significant size.

Mine has been running for about 2 weeks now without #1 above occurring. I have upgraded ILO drivers, and firmware to 6.2. Yesterday I applied the P410 ROM flash. Initial results indicate that #1 may be resolved. Only time will tellâ ¦

On #2, the server shows about 2.1 amps draw when running normally, but will not stay on if I unplug the AC on an APC 1500va UPS. Does anyone know about the sensitivity of these new power supplies?

In the midst of this I had a tape drive fail, so I have had trouble isolating the issue with so many problems occurring... been chasing this servers problems for 3 months and bought two UPSs.

Wayne