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BL20p G3 & Power Enclosure

Thomas Bauer_3
Frequent Advisor

BL20p G3 & Power Enclosure

We have the Problem, that some Server have an evenmtlog entry

The description for Event ID ( 107 ) in Source ( cpqriis ) could not be found. It contains the following insertion string(s): .
Rack Infrastructure : Loss Of Chassis Connectivity (Enclosure Serial Number 800FJTK852)

The Server works fine, but they always give the Information that lost connectivity to the enclosure.
The error appears sometime every day and than again just every few days. And the error appears not always on the same enclosures.

HP support said first update firmware,
done - no effect,
then update PSP to 7.51 and update 6i and ROM,
done - no effect
upgrade firmware of the power enclosure management modules
done - no effect
exchange the management modul on both enclosures
done - no effect
now HP support wants al lot of Logs, think they don't know where to look in order to solve the problem.

Does anybody have an idea what we can do in order to solve the problem?

THX Thomas
24 REPLIES
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure

how many Power Enclosures you have ?


... exchange the management modul on both enclosures
done - no effect ...

is that for Blade or Power Enclosure ?


Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

We have two power enclosures, and we have exchanged the management mnodul for the power enclosures

THX Thomas
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

We have two power enclosures, and we have exchanged the management modul for the power enclosures

THX Thomas
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure


The error appears sometime every day and than again just every few days. And the error appears not always on the same enclosures.

does it show any other errors except .. Rack Infrastructure : Loss Of Chassis Connectivity...
also if other enclosures reported, what they are?

mark down where you seen same report

BL Encl ??
BL Encl
BL Encl
Power Encl
Power Encl

you mention .... some Server ... report Problem, Where they are side and Enclosure

you can Upload Image of Rack View for easy understanding

you have CASE ##
Miika T
Valued Contributor

Re: BL20p G3 & Power Enclosure

Have you tried disconnecting the link cable between the enclosure and power enclosure and the resetting both enclosures and reconnecting the link cable?

-Miika
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

@Oleg Koroz

the error apears for one 1 - 2 sec. then we got the information that there was a new connection.

We also have errors in the IML.
All the server having this problems are in the same enclosures.

The Rack infrastruktur is, that we have two blade enclosures connected to one power enclosure with four power modules

All Servers connecting to the power enclosure do have these errors.


@ MiikaT

the cable Link was disconnected but no result. We also have reseted the management modul but also no result.


THX Thomas
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure

Can you make cable longer than standard size for management link and connect for few day's Power enclosure to 1 Blade enclosure and than to second, see when it stop or it reports at any configuration.

One of the management modules, or backplane from Power Enclosure conflicting ?!

How did you swap Blade management modules around or from different rack?

How many blades you have ?
Normally with 1 Phase Power Enclosure having more than 14 servers you can get some power problems and errors.
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure

correction

One of the Blade enclosure management modules, or backplane from Power Enclosure (actual power enclosure) conflicting ?!
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

@Oleg Koroz,

we have 25 Baldes in four enclosures with two power enclosures and one DL360 connecting with a MSL6030, all connecting on one phase.

HP-Partner said that there won't be a problem.

THX Thomas
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure

Is your Configuration with local UPS?

Confused with: All connecting on one phase?

However, probably it would be less related unless you have random shutdown or inadequate power messages.
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

Hi Oleg,

All servers an the two SANs are configured with a local UPS

> Confused with: All connecting on one phase?
Yes, correct, all units are using the same phase, they are all connecting to the same UPS.
> However, probably it would be less related > unless you have random shutdown or
> inadequate power messages.

Do I have any logs where I can find these messages?
We had the problem that one server shuts down without any reason!
We don't have any messages coming from the UPS.

THX Thomas
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

@Oleg,

do you have a link to a HP white paper or HP advisery about this cable length?

THX Thomas
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

@Oleg,

do you have a link to a HP white paper or HP advisery about this problem?
(14 blades for 1 phase)

THX Thomas
Oleg Koroz
Honored Contributor

Re: BL20p G3 & Power Enclosure

14 per 1 Phase Power enclosure if you have two you double numbers

Some tables presented here
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00301687/c00301687.pdf

and here
http://docs.hp.com/en/364538-003/364538-003.pdf
Page 40

One full size Bay you count as 300 W Max
Matrix shows 13 Servers.

Where to look for Power Errors: in IML from ILO

Cable length: from Power Enclosure about 10ft A and B side. No documentation I looked all over.

I'm still thinking error that you have - Loss Of Chassis Connectivity - caused by Conflicting Management module from Blade Enclosure or One of Backplane Boards that seat insight of Power enclosure.



kvelayutham
Advisor

Re: BL20p G3 & Power Enclosure

This error may occur some time if you have replaced the management modules.

Check with the management module connected to the enclosure sl.no. 800FJTK852 thru serial console.

For serial console testing check with Blade system user guide.

Remove all the interlinking UTP cables.
Check the enclosure serial no. in the console page.
Check in the management module's console, about enclosure serial no.
Check all the modules like this
Then connect the linking UTP cable.

Your error will get resolved.
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

@kvelayutham

the errors occurs befor replacing the management modules.
All Cables have been replaced as well.

We have checked a lot of Logs an send them to the Case at HP support. But from my point of view they don't know where to search.
They try to solve the problem thru firmwareupdate. but we had done several firmwareupdates yet.

THX Thomas
mjcb2000
Advisor

Re: BL20p G3 & Power Enclosure

Any progress on this. We have the same issue.
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

Hi mjcb2000,

we have a solution in this case :-))

We had a bug in the power-supplies.
The company building the power-line mixed up the phase in the cables.
We had a check of the hole power-system and as an result the company had to fix it. After that we did not had any problems yet.

Hope it stys that way.

I will give a detailed discription of the problem if you want.

Thx Thomas
mjcb2000
Advisor

Re: BL20p G3 & Power Enclosure

Thanks Thomas. I never thought of getting that checked.

If it wouldn't be too much of an issue, could you provide me with the details so that I can pass them off to my electritian.
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

Dear mjcb2000

I try to have the translation ready by next week. So please hold on, I try to have it ready as soon as possible.

CU Thomas
Koarla
Occasional Visitor

Re: BL20p G3 & Power Enclosure

We had these error logs too, it's definitely related the hosted side electric circuit.
Thomas Bauer_3
Frequent Advisor

Re: BL20p G3 & Power Enclosure

Hi Koarla,
Hi mjcb2000,

This is just a quick translation of a part of the report:

The problem in our envirment was that we had a new wiring installation.
This new wiring installation had a bug.
We use a single phase USV. The bug in the wiring was, that we had a four wire cable and that there was power on the grounding equipment conductor.
The electicity was going back thru the grounding equipment conductor into the power distribution.

The main problem was, that the cable just contains the phases L1, L2, L3 and the the grounding equipment conductor. The neutral conductor was missing.

After reinstalling a new wire with an extra neutral conductor, we do not had any more problems.

We have a full report but this is german only.

So If you have an further question please let me know.

CU Hth
Thomas
Koarla
Occasional Visitor

Re: BL20p G3 & Power Enclosure

Thank you for you report, Thomas!
In fact, we are not frequently to receive this error, hopefully it's for they were installing some new wire, we are hosted on AT&T web hosting, I might report it to them if I see the error again.

Thanks again.
Dana Racine 1
Occasional Contributor

Re: BL20p G3 & Power Enclosure

Thomas - could you elaborate a bit more on this? We just had some electrical work done in our panel, and I am starting to see the error of Chassis Connectivity Loss - but only to the main power supply chassis serial number, not the backplane serial number. Do I just need to test for voltage being looped into the ground conductor? What was the specific type of testing you did to determine that the error message was related to miswiring? Seems very coincendtal to me that I just had electrical wiring done, and now this is happening.