Yesterday I stumbled over a forum post in a german VMware forum. A user noticed after a vSphere 5.5 update, that a newly updated ESXi 5.5 hosts wasn’t able to mount some datastores. The host was updated with a HP customized ESXi 5.5 Image. The other two hosts, ESXi 5.1 installed from a HP customized image, had no problems. A HP P2000 G3 MSA Array with iSCSI was used as shared storage.
When you deal with problems in IT, you often deal with problems where is root cause is unknown. To solve such problems, you have to use a systematic method. Only a systematic method leads to a fast, effective and efficient solution. One of the most commonly observed methods in my career bases on approximation. We all know it as “trial and error”. Someone tries as long until the problem is solved.
I faced today a really nasty problem. I have four HP ProLiant DL360 G6 in my lab. This server type has two 1 GbE NICs with the Broadcom NetXtreme II BCM5709 chip onboard, which are usually claimed by the bnx2 driver. While applying a host profile to three of the hosts, one hosts reported an error. Supposedly the host hasn’t a vmnic0 and because of this the host profile couldn’t be applied.
The HP 4Gb Fibre Channel Pass-Thru Module for c-Class BladeSystem (PN 403626-B21) is a interconnect module for the HP BladeSystem c-Class. It’s a simple pass-thru module, which provides a 1:1 non-switched, non-blocking paths between the server blade and a Fibre Channel Fabric. There are several Fibre Channel interconnect modules, like the Virtual Connect 8 Gb Fibre Channel modules (20 or 24 ports) or the Brocade and Cisco 8Gb SAN Switches for HP BladeSystem c-Class.
Today I was onsite at a customer to bring a tiny VMware vSphere cluster to life (HP BladeSystem c7000 with 7 HP ProLiant BL460 Gen8). Normally no big deal, but it started with two unavailable Onboard Administrator (OA) network interfaces. I switched from static ip addresses to DHCP, but I had no luck. I noticed that both interfaces were available if I connect my notebook directly to the interfaces. I even noticed that the Insight Display was unresponsive after connecting one or both OA to the network.
During a vSphere 5.0 > 5.5 upgrade I got this message:
The SSL certificate for this product is expired. See Knowledge Base article kb.vmware.com/kb/1009092
The customer hasn’t installed CA-signed certificats, so the expired certificates are the out-of-the-box self-signed certificates. The certificates are valid for two (VirtualCenter 2.5) respectively 10 years (since vCenter 4.x), depending on the Version. The only way to continue the installation is to renew the certificates. After renewing the certificates, you can simply continue the setup due the fact, that the vCenter service is stopped at this point of the setup and it loads the new certificates during startup.
