HP MSM Controller – Using RADIUS With Windows Server
KB ID 0000922 Problem I’m very disappointed with HP, theres next to no information on how to do this. My plan was to secure wireless access with certificates, so only clients with a valid digital certificate could authenticate and connect to the wireless. After spending nearly a whole day on the phone to various technical support departments at HP, this remained an impossible requirement! In the end, as the client only had a...
Install and Configure an HP UPS Network Module
KB ID 0000813 Problem I installed one of these a couple of weeks ago, and there’s some good documentation with the module itself so installing it into the UPS and giving it an IP address was easy, getting the right client software to talk to it was a pain. Solution Configure the Network Module 1. Physically install the module in the UPS, it’s fixed with two screws and you can install it with the UPS powered on. 2. It takes a...
HP Networking ‘ProCurve’ – Trunking / Aggregating Ports
KB ID 0000638 Problem I was lending a hand this week, while my colleague swapped out a lot of switches. I don’t usually deploy a large number of HP switches, so I was surprised when we installed a chassis switch and after patching the fiber links, the Cisco Catalyst switches all got upset and we lost three out of four ping packets. I (wrongly) assumed that STP would be enabled, so I wandered back and pulled the second fiber...
HP 1810-8G Switch – Setup and Management
KB ID 0000732 Problem For such a ‘baby’ switch this has a LOT of features, I had to lock down the speed and duplex settings on one of the switch ports today. The main details you will be looking for are, Default IP address = 192.168.2.10 Default Password = blank Solution 1. Put yourself on the same network: Windows Key+R > ncpa.cpl {enter} > Right click your network connection > Properties > Internet...
HP Procurve Adding a Management IP
KB ID 0000428 Problem You have an HP Procurve switch, and you would like to add a management IP so you can view the web console. Solution Related Articles, References, Credits, or External Links HP Procurve – Trunking / Aggregating Ports
HP and Cisco – VLANs and Trunks Confusion!
KB ID 0000741 Problem When I first started in IT, I went and did my Cisco CCNA. So I learned that to connect Cisco switches and pass VLAN traffic between them, I needed to create a ‘Trunk’ to pass the VLAN traffic. Fast forward a few years, and I now work for an HP reseller. Very early on I came to realise that what HP called a ‘trunk’ was very different from what I had been taught. Below is an article I did a...
Setup an HP 1800-24G (J9028B) Switch
KB ID 0000800 Problem Essentially you can unbox this switch, plug it in and it will do what you want (unless you have VLANS, or trunks (port-channels)). Which is what my client had done, but I needed to get on the web console and have a look at what was going on, and there is NO CONSOLE socket on this unit at all. Solution 1. Don’t bother looking in DHCP, it’s NOT set to DHCP by default. From the factory the switch will have...
HP MSA 2000 G2 Firmware update loop
KB ID 0000248 Problem Seen on HP MSA2324sa G2. You attempt to upgrade the firmware on this unit and, it applies to the first controller, that restarts and then it constantly tries to update the other controller. Solution If you’re reading this then you’re probably already in an upgrade loop? The fist step is to stop it looping then sort the firmware out. 1. Remove controller B (bottom one) from the SAN, (Slacken the 2...
HP StorageWorks P2000 – Connecting to and Configuring
KB ID 0000569 Problem Normally I simply connect a new MSA to a clients network, and it gets it’s address from DHCP. Then I can get the address for the DHCP Scope, and point my web browser at it. Yesterday I was starting with new virtual infrastructure and had no DHCP. With the G1 and G2 models, you got a console/serial cable and could just terminal in. With the G3 they have replaced the serial socket with a mini USB socket....
HP MSA P2000 (G3) Error – ‘Unwritable write-back cache data exists for a volume’
KB ID 0000817 Problem Seen on a G3 P2000 SAN, the client had also had an MSA70 shelf, which contained a failed array. I was removing the MSA and after the job, this error was getting logged. Unwritable write-back cache data exists for a volume (vdisk: unknown name, volume: unknown name, SN {Serial Number} it comprises {number}% of cache. Solution Essentially, there was data in the cache that needed writing to the array/vdisk, when it...