VMGuru.nl – I choose (a virtual) life!

Last week I have been struggling with  the installation of a vSphere 4 infrastructure on Dell hardware at a Belgium client site.

I have done many many many VMware installations and encountered my fair share of issues but apart from the HP USB sticks the hardware never gave me this much trouble.

It all started with a very difficult BIOS/firmware upgrade which, after various downloads and trials, ended with an old-school DOS boot USB and a DOS based BIOS update. Real 1980’s stuff.

With this fixed I installed all ESX hosts and left for the hotel, ready to start the configuration the next day. However, when I started with the first ESX host and wanted to configure the network, I noticed that I only had eight NICs when I should have had twelve. We use Dell PowerEdge R805 servers with two Intel quad port 82576 Gigabit Ethernet Adapters, the first card was already in the server, the second card we added just before the installation.

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Since last week I’ve got a new assignment which is a long way from home. Next to the downsides of traveling 5 hours a day and staying in hotels, it certainly has advantages.

During my 5 hour drive or when I’m staying in a hotel i have time to listen to the VMware Community Roundtable podcasts I put on my iPhone. For those of you who don’t know this. VMware Community Roundtable is a weekly conference call/chat for VMware enthusiasts. Every week there’s a different topic and this is your change to discuss these topics with the experts in the community. For those of you who don’t have time to attend, there’s the possibility to listen online or download the sessions as podcasts.

Last week I listened to a great topic which was called the ‘#66 – iSCSI Super Friends with EMC, NetApp, Dell, HP, VMware‘. This podcast was from September 30 so it was quite an old podcast but this was such a great session that I don’t want to keep it from you. This session discusses the multi vendor blog post by VMware (Andy Banta), EMC (Chad Sakac), NetApp (Vaughn Stewart), Dell/EqualLogic( Eric Schott), HP/Lefthand Networks (Adam Carter) on how to implement iSCSI with VMware VI3.5 and vSphere 4.

So for those of you who already heard it, sorry for the ‘old’ intel, for those of you who haven’t, this is a must read/hear.

The mult vendor blog post discusses can be found here:

• Using iSCSI with VMware VI 3.x
• Using iSCSI with VMware vSphere 4
  

I really liked the conclusion that you can build iSCSI storage solutions which are as fast as fiber storage solutions and that tier 1, tier 2 and tier 3 storage definitions should not be based on the technique used but on the service level agreement with your end user.

Personally I wonder what the future will bring. Will fiber channel disappear in favor of iSCSI? As discussed during this podcast, ethernet is ideal for storage connections, the questions is which protocol to use, NFS, iSCSI or FCoE. We will see ……

Yesterday I ran into VMware HA problems again. With my past HA troubleshooting experiences I thought configuring HA wouldn’t be a problem any more but unfortunately it bit me in the ass again.

We all know VMware ESX implementations where not all information, access, etc is available when you start with the installation. Exactly this was the case at this project. I only had 4 ESX hosts connected to the network and an EqualLogic SAN and the network was limited to the rack so only the ESX hosts and the SAN were connected. The network guys had to establish a connecting to the HQ but to do that the had to change IP addresses.

I installed the complete VMware Infrastructure with the new addresses waiting for the connection to be made so I could add the servers, like vCenter, to the corporate Active Directory.

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Yesterday I wrote a blog on faulty HP ESXi 3.5 USB keys which cost me a lot of time troubleshooting. Today I received a link from a collegue (thnx Egbert) with more information on the subject.

Here HP Support document c01605187 which was released Nov 13th.

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At the same client site where we had the problems with VMware Update Manager and ESXi we are now struggling with HA. We can NOT get it to work and even WMware support can NOT get it to work either. We have been on the phone with VMware support for almost a week now and have tried various fixes but none of them work. We created a hosts-file to rule out DNS problems, we added advanced HA settings like ‘das.allowNetwork[n]‘ and ‘das.allowVmotionNetworks‘, we created new clusters, checked FT_HOST files and deleted all host from the cluster to build it again from scratch. All without positive results.

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Today VMware has released ESX/ESXi 3.5 Update 3.

In the release notes I found the following changes:

• Increased number of vCPUs per core limit (from 8 to 20);
• New supported servers, NICs and storage I/O controllers;
• New supported Guest Operating Systems.

Besides that there are many improvements and bug fixes.

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