HP AlertMail: Enclosure added to Rack

[Tjeerd]

Hi,

The last few days I got a couple (about 100 now) of these messages in my mailbox:

-------------------------------------------
EVENT (23 Apr 15:13): New enclosure detected in Rack.
EVENT (23 Apr 15:13): 1 enclosure added to Rack.


Enclosure, "", has detected the addition of 1 enclosure to the enclosure link.

Onboard Administrator URL: https://-------------------------------------------

In the log of the enclosures I see this:
-------------------------------------------
Apr 23 15:12:22 Enclosure-Link: Found new Topology: 1 enclosure removed from chain (1 total)
Apr 23 15:12:43 Enclosure-Link: Found new Topology: 1 enclosure added to chain (2 total)
Apr 23 15:32:32 Enclosure-Link: Found new Topology: 1 enclosure removed from chain (1 total)
Apr 23 15:33:51 Enclosure-Link: Found new Topology: 1 enclosure added to chain (2 total)
--------------------------------------------

The system is a HP BladeSystem c7000 with firmware version 2.10.

There are no people in the serverroom who are trying to fool me, so why do I get these messages?

Everything runs fine though. No problem with the blades.

Thanks in advance.

[Steven Clementi]

The first "issue" I can see is that your firmware is old. The first thing you probably want to do is update it. Current version is 2.41 and can be found here...

" http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=329290&prodSeriesId=3188465&prodNameId=3188475&swEnvOID=1005&swLang=13&mode=2&taskId=135&swItem=MTX-c200e16e662a4410b4776bb6f1 "

As to why you get these messages... I don't really know. Did the OA reset somehow?

Do you have multiple enclosures?


Steven

[Tjeerd]

Ok, thanks Steven.
It's probably the first step we should do.
But since everything runs fine, we're not in a hurry.
Thanks for the link to the new firmwware version.

[Rick.Mitchell]

We've been having the same issue and our local HP tech has even replaced the OA's to no avail. WE have the latest firmware, we have reset the config, heck, I even renamed them just in case.

I now have hundreds of: (selling them cheap!)
May 29 11:00:53 Enclosure-Link: Found new Topology: 1 enclosure removed from chain (1 total)
May 29 11:02:12 Enclosure-Link: Found new Topology: 1 enclosure added to chain (2 total)

Any ideas?

[Pradipta Sarkar]

This means some other enclosure is linked to it through Enclosure Link Uplink/Downlink port and that Enclosure OA has rebooted. You can find the Enclosure Link ports in between the 2 OA trays in the back of the enclosure. You can remove the cable if you dont want to link those enclosures.

[ccooley]

I'm getting the same errors with FW 2.32. It just started last night - nothing has changed that I know of. I also looked at the OA logs, and I don't see any of them having rebooted.

I was aware of an OA rebooting issue fixed by 2.41, but again, I don't see the reboot entries.

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=329290&prodSeriesId=1844065&swItem=MTX-c35ae9ef688e4fbd97d02bf488&prodNameId=3692952&swEnvOID=1005&swLang=13&taskId=135&mode=5

"Fixed an issue where the Active and Standby OA modules would automatically reboot after being operational for 99 days if no GUI or CLI sessions were initiated during that time."

[aviation87]

Hello all,

We're receiving this message frequently.

'enclosure removed from Rack'
'enclosure added to Rack'

Both enclosures are running firmware 3.10
Does someone have a solution for this?

Thank you

[David Claypool]

@aviation87, it could be something as simple as an intermittent connection due to bad cabling. Check the enclosure link cable and replace if necessary.

[aviation87]

Hello David,

I wish its that easy, we've already changed the cable and just received the alert again (at 01AM).

Any ideas?

Regards from Austria

[SysopCHE]

Hello,

It's me again (Tjeerd), lost my login credentials...

I send a syslog to HP.
They saw this:
Sep 22 11:39:50 Kernel: Network packet flooding detected.
Sep 22 11:40:20 Kernel: Network packet flooding detected.
Sep 22 11:40:50 Kernel: Network packet flooding detected.

They advised me to segregate the management and data VLAN.

We made a extra VLAN for the Onboard Administrators and put all Blade-iLO's on DHCP.
Since then it is much better and we do not have to reset the OA's again before we can reach them.


This is the complete information I got from HP:
Information
The OA syslog message indicating "Network packet flooding detected" is generated when the OA detects over 10000 network packets during a two second period.

Details
This flooding is normal and is often visible when the management and data traffic is traveling over the same VLAN. By putting the OA on a separate management VLAN and data on a separate DATA VLAN the chance for OA flooding is small.
The Found new Topology : 1 enclosure removed from chain message is not reflecting in recent show all logs , we will monitor this enclosure for now and please collect the show all logs next week and we would analyze the same.