One of the new features in vSphere 5.5 is the vSphere vFlash that enables you to use a SSD/Flash device as a read cache for your storage. Duncan Epping has a series of posts on vSphere Flash Cache that is well worth a read. vSphere vFlash caches your read IOs, but at the same time you can use it as a swap device if you run into memory contention issues. The vSphere vFlash Host Cache is similar to the older Host Cache feature, but if you are upgrading from an older version of ESXi there is a couple of things that needs to be done to be able to use this feature.
While deploying a fresh vCenter Server 5.5 Appliance, I ran into an issue getting it configured. When the appliance is deployed, the first time you log in you get presented with the configuration wizard. The wizard clearly states that if you want to set a static ip, or hostname, you should cancel the wizard, do the network configuration and then re-run the wizard after the fact. Well, that´s what I did, and it resulted in the following error when trying to create the embedded database:
As I´ve posted about earlier, you can update your ESXi hosts to a new release from the command line. Now that ESXi 5.5 has been released, the same procedure can be applied to upgrade once more. Place the host in maintenance mode, then run the following command to do an online update to ESXi 5.5: ~ # esxcli software profile update -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml -p ESXi-5.5.0-1331820-standard While this runs, monitor the log file to check upgrade process:
Some times all it takes is one single tweet to set things in motion: Just a year after losing Dad to cancer, Mom's has now spread from lung to other areas. Too soon for this shit. — Gabriel Chapman (@Bacon_Is_King) September 12, 2013 This started a spiral of tweets, discussions and ideas being thrown around and has now resulted in Podcasting for Cancer. The current goal is to raise $5000 USD by November 12th - Let´s absolutely crush that goal!
As Eric Siebert has pointed out, the VMware vSphere release cycles are shortening. While vSphere 5.1 could be seen as a bit rushed, especially in regards to SSO, when it was released, the shorter release cycles seem to work out pretty well. This does make me think though; vSphere 5.5 is pretty much ready to be released to the general public, and the new VSAN component will be in a public beta at the same time.
This coming tuesday the first ever Veeam Webinar held in Norwegian will be held by yours truly. Feel free to sign up now and listen to me speak for an hour or so. Also, Veeam is continuing it´s support of the virtualization community and is yet again offering free 180-days Veeam Backup Management Suite v7 NFR licenses for VMware and Hyper-V. Note that this offer is only available to anyone who is one of the following: VMware vExpert, VMware Certified Professional (VCP), Microsoft Certified Professional (MCP), Microsoft Certified Technology Specialist (MCTS) and Most Valuable Professional (MVP)
About a year and a half I go, I took the leap from running Microsoft Windows as my main operating system and switched into full “hipster mode”, i.e. switched to a Macbook Air and OS X. Simply put, “the change” was not that hard and most everything has worked without problems, and for those things that still require Microsoft Windows, well, there is VMware Fusion for that. While I´m admittedly still a novice OS X user, and not even close to mastering OS X, I´d like to share my current Slate setup.
When doing manual host upgrades, either through the direct method or via a locally placed upgrade bundle, there is a distinct lack of progress information available after running the esxcli command. Thankfully the ESXi host provides a running logfile of the upgrade process, which makes it much easier to keep track of what is going on and that the upgrade is indeed being performed. The esxupdate.log is located in /var/log, and by issuing the following command in a terminal window you can have a rolling log showing you the upgrade status and progress:
A fellow IT-professional, who works with the non-wired flavor of networking, contacted me with the following scenario: A group of users, developers in this case, have VMware Workstation installed on their laptops. This makes it easy for them to manage, test and develop their applications in a closed environment without having to install a bunch of tools/services on their centrally managed laptop environment. An excellent use case for VMware Workstation if there ever was one.
When configuring a new C7000 Blade Enclosure with a couple of FlexFabric 10Gb/24-port modules I ran into a rather annoying issue during setup. HP Virtual Connect 3.70 introduced support for Direct-Attach setups of HP 3Par StoreServ 7000 storage systems, where you can eliminate the need for dedicated FC switches. For full details, have a look at Implementing HP Virtual Connect Direct-Attach Fibre Channel with HP 3PAR StoreServ Systems. This is excellent for setups where all your hosts are HP Blades, and you have a Virtual Connect FlexFabric setup.