Posted by Marek.Z on 25 February 2014
Vote for Deafault Reasoning!
Every year, Eric Siebert from vSphere-land.com runs the annual voting for the best VMware & Virtualization blogs. Just like last year, Default Reasoning is also taking part of the voting this year. So, if you found my blogs interesting and worth reading in the past year, your vote would be highly appreciated!
This year there will be drawings for some great prize giveaways courtesy of Veeam that include Nexus tablets, iWatches, headphones and more!
You can find Default Reasoning (Marek.Z) in the general blog section.
Click the banner above or this link to start your vote!
Posted in Events, Top Blog Voting | Tagged: 2014, blog, Top Virtualization, Top VMware, voting, vSphere-Land | Leave a Comment »
Posted by Marek.Z on 4 March 2014
Here is a quick post on how to create a custom ESXi ISO image using PowerCLI.
Cmdlets used and the corresponding reference page:
- First, connect to the vCenter Server: PowerCLI C:\> Connect-VIServer <IP_or_FQDN>
- Next, add the ESXi offline bundle to the depot: PowerCLI C:\> Add-EsxSoftwareDepot C:\VMware-ESXi-5.5.0-1331820-depot.zip
- Add a custom driver to the depot. I used the iSCSI Driver for Emulex: PowerCLI C:\> Add-EsxSoftwareDepot C:\be2iscsi-10.0.727.44-offline_bundle-1525244.zip
- Clone the ESXi image: PowerCLI C:\> New-EsxImageProfile -CloneProfile ESXi-5.5.0-1331820-standard -Name ESXi-5.5.0-custom -Vendor VMware
- Get the Emulex driver name: PowerCLI C:\> Get-EsxSoftwarePackage -Vendor Emulex
- Add the driver to the new image: PowerCLI C:\> Add-EsxSoftwarePackage -ImageProfile ESXi-5.5.0-custom -SoftwarePackage ima-be2iscsi,scsi-be2iscsi
- The new drivers should now be listed in the package.
- Export as ISO: PowerCLI C:\> Export-EsxImageProfile -ImageProfile ESXi-5.5.0-custom -FilePath C:\ESXi5.5.0-custom.iso -ExportToIso
Tested using vSphere PowerCLI 5.5.
Or you can use the ESXi image customization script by Andreas Peetz
Posted in How To, PowerCLI, Scripting | Tagged: Add-EsxSoftwareDepot, create, custom, custom driver, ESXi, Export-EsxImageProfile, image, ISO, New-EsxImageProfile, PowerCLI | Leave a Comment »
Posted by Marek.Z on 28 February 2014
Some news from our friends at StarWind today!
The release candidate of StarWind V8 is available for download. Here are the highlights of this release.
Log-structured File System
- VAAI UNMAP command implemented.
- Internal structures changed to ensure compatibility with upcoming updates.
- Improvements made for operations with VSS providers.
- Optimizations and fixes for cache operation added.
- WB mode for L2 cache returned.
- Added VSS support for devices with synchronous replication.
- NAS Configurator utility helps to export storage as SMB or NFS network share by means of StarWind High Availability and MS Cluster.
- VSA Builder utility deploys StarWind VSA virtual machine on VMWare ESXi server.
- V2V Converter utility added to StarWind Management console. It is a V2V conversion tool for virtual machines.You can use it to convert VMDK to VHD files and VHD to VMDK as well as to IMG file, which is a native StarWind format.
- Scale-out functionality extended: updates for device views and device tree.
- Fix for file naming: now wizard generates header file name and image file name for L2 cache storage according with device header file name.
- Fixed bug connected with the creation of new folder in file browser.
Head over to StarWind website and sign up for the public beta-testing program!
Posted in StarWind, Storage | Tagged: available, Release Candidate, StarWind, v8 | Leave a Comment »
Posted by Marek.Z on 18 February 2014
A quick post on how to import a host profile into vCenter Server using vSphere PowerCLI.
Here is the link to the cmdlet reference page.
- Open PowerCLI and connect to you vCenter Server: PowerCLI C:\> Connect-VIServer <IP_or_FQDN>
- Next, use the following to import the profile: PowerCLI C:\> Import-VMHostProfile –FilePath <Path> -Name <Profile_Name> -ReferenceHost <ESXi_host_Name>
PowerCLI C:\> Import-VMHostProfile -FilePath D:\HostProfiles\Default.vpf -Name Default -ReferenceHost host-01.dr-lab-e.local
As you can see the host profile is now displayed under Host Profiles in the vCenter Server. All you have to do now, is to link it to the cluster and apply it to the hosts.
Note: make sure that the reference host is online and is accessible or you will receive an error message in the PowerCLI window stating that the host is invalid or incompatible.
This of course can also be done in the vCenter Server through the Host Profile import wizard.
Posted in PowerCLI, Scripting | Tagged: how to, Import Host Profile, PowerCLI, vCenter Server | Leave a Comment »
Posted by Marek.Z on 5 February 2014
After passing the VCAP5-DCD exam a while ago, the obvious step for me was to prepare and take the VCAP5-DCA exam. So I scheduled the test on January 29 and here are some of my thoughts.
As you all know the VMware Certified Advanced Professional 5 – Data Center Administration exam tests certification candidates on their skills and abilities installing, configuring and administering large and/or more complex virtualized environments. This said, I will not bore you with stuff that you can read in the blueprint and rather give you some useful tips and advice.
First of all, TIME MANAGENT. This is very essential in the VCAP5-DCA exam. I managed to complete about 19 or 20 of the 26 labs. Each lab consists of one or more tasks and you can easy loose valuable time by switching back and forth from the lab description to the work area. Don’t even bother to look up answers in the documentation, which is provided for you. This will cost you a lot of time. This would be a lot easier if the exam center had two monitors available.
Next, If you don’t know the answer to a lab or a specific task in the lab, move on. In most cases you can always go back. Some labs are depending on each other so read carefully! Also, check if there are warnings mentioned in the lab description. In some cases you can perform tasks that will kill the environment and when you do so, it’s game over.
The desktop, as you can see in the mock exam, was very sluggish in my opinion. Especially the RDP sessions. There is a vSphere Client available on your desktop and I strongly recommend to use it for direct connection to the vCenter Server. It is more responsive than the RDP client.
Don’t close the SSH, RDP or vSphere Client session once you have opened them. Minimize them, you probably will need them in the next labs and it will save you some time. Logging in to the sessions isn’t exactly fast on the exam.
Write down the password and optionally usernames so you don’t have to go back to the lab description to look them up.
Okay, so for exam experience. Here are the materials I used when preparing for the exam. First of all, blueprint is your guide. There are also a lot of blogs on experiences from other people, just google it
Now for some practical tips. Arrive early at the exam center. Register, get something to drink, go to the bathroom and eat a high calorie snack J you will need your energy.
Try to relax and then… go for it! I’m currently waiting or my exam result. I will update the blog when I got some news.
[ Update 11-02-2014 ]
I just received an email with my score report, I am happy to say that I passed!
Posted in Certification, VCAP-DCA | Tagged: Data Center Administration exam tests, DCA, exam, experience, VCAP5-DCA, VMware, VMware Certified Advanced Professional | 2 Comments »