topic Re: SL4540 Gen8 backup/clone problem in Server Clustering

SL4540 Gen8 backup/clone problem

Ryan Ollenburger — Fri, 06 Jun 2014 15:07:27 GMT

CMU version 7.2

Backup/Clone target:

SL4540 Gen8 running RHEL 6.4 x86_64

BIOS: 2/10/2014

B120i: 4.50

iLO: 1.50

When trying to backup one of the SL nodes, the system successfully reboots, pxe boots, and then goes into an endless loop of various Call Trace outputs and USB disconnect/uhci_hcd events (see attached screenshot)

The backup job eventually times out and fails, but the SL node continues in this endless loop

I have blacklisted ahci as suggested in the user guide for the B120i controller.

I have also blacklisted hpsa to prevent the P420i controller from loading

When kicking off the backup job, I select sda partition 3...this is where the / partition resides

Has anyone run into an issue like this?

Any suggestions?

Re: SL4540 Gen8 backup/clone problem

Chintala — Sat, 07 Jun 2014 18:42:36 GMT

Hello Ryan,

Is this a internal cluster or customer cluster ?

If it is a customer cluster, please raise support call at local hp support center.

Is this node has Mellanox cards ? If yes, what is the firmware version ?

I couldn't find the screen shot attached. Can you please attach it again, when you see the stack traces.

Regards,

Abhishek Chintala

Re: SL4540 Gen8 backup/clone problem

Chintala — Mon, 09 Jun 2014 14:43:39 GMT

Hello Ryan,

Please find the patch (PATCH-CMU_7.2.1-X86_64-0002) on hpsc site. This patch fixes the CMU netboot kernel crashes seen on servers with Mellanox NICs.

https://hpsc-pro-site1-athp.austin.hp.com/portal/site/hpsc/patch/home

Patch management -> Find patches by product -> HP Insight Cluster Management Utility -> Insight Cluster Management Utility V7.2 -> PATCH-CMU_7.2.1-X86_64-0002.

Let us know how it goes.

Regards,

Abhishek Chintala

Re: SL4540 Gen8 backup/clone problem

Ryan Ollenburger — Mon, 09 Jun 2014 15:31:03 GMT

This is an internal testing cluster...

Yes it does have Mellanox cards...

[root@SL4540-01 ~]# ethtool -i eth0
driver: mlx4_en
version: 2.1.6 (Aug 27 2013)
firmware-version: 2.30.3200
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no

But I am booting off of the 1Gb onboard NIC

I've attached the screenshot again

Re: SL4540 Gen8 backup/clone problem

Chintala — Mon, 09 Jun 2014 18:21:10 GMT

Have you applied the patch and tried it again ?

If not, please apply the patch mentioned in my above post, and try it again.

Let us know how it goes.

Re: SL4540 Gen8 backup/clone problem

Ryan Ollenburger — Thu, 12 Jun 2014 16:07:22 GMT

After applying the patch I was able to successfully pull a backup image...

Thank you for the help!