Virtually everywhere!!!
ekrejci You might wonder why there are so many years since my last article. Life is something surprising and can take you a lot, I mean really a lot of time 😉 anyway, now I’m back into business with a lot of new articles in me pockets. I even became a vExpert 2019 vRealize (Automation, Log … Read more
I did a successful manual upgrade (not using vRealize Lifecycle Manager -> article will follow) I noticed that I wasn’t able to get the logs of the embedded vRO workflows. It was a quite annoying, no way to debug failings workflows and so on. After a quick search over Internet I found the following KB … Read more
Today is brilliant. I received my VCAP5-DCA results. I passed!!! I’m very, very happy because the exam didn’t get the way I wanted to. I went through some difficulties during the exam, beside the real hardiness of the exam itself. First of all, the remote access to the Lab was horrible! It was so slow … Read more
[et_pb_section admin_label=”section”] [et_pb_row admin_label=”row”] [et_pb_column type=”4_4″][et_pb_text admin_label=”Text”]Usually when updating your vCenter infrastructure you perform upgrade in place. But you can also opting for a migration from your actual vCenter to a freshly installed one. One “good” reason for going to migration is changing the type of underling Database used by vCenter. I had to “get … Read more
Starting with vSphere 4, a nice network enhancement has been brought: Virtual Distributed Switchs (vDS) Except for the specifics features bound to the vDS, it is nice to set only one time a new VMs’ PortGroup for an entire group of hosts. Of course you have pro and cons between vDS and Standard Switchs. For … Read more
vStorage APIs for Array Integration (VAAI) is a very nice feature, offloading hosts for several storage operations. Honestly I did test these features and was highly impressed by the results. Here a small example of a sVmotion for a VM having a vmdk of 35GB Lazy Zeroed: No VAAI it took 02:50 to complete and … Read more
I’ve been facing very recently a naughty issue when I updated my vSphere 4.1u2 FCoE hosts to vSphere 5.0u1. Right after the migration to vSphere 5, majors’ performance issues appeared with the underling storage. I was facing read/write latencies of several thousand milliseconds which lead to dead path detection and of course I/O problem within … Read more
I’m always amazed of what you can do with PowerCLI. Actually I’m having version 4.1 of vCenter/vSphere I’m using complete PowerCLI script to configure freshly installed vSphere. I was configuring everything but the last patches. VMware released for some times already a VMware Update Manager PowerCLI. It needs to be installed in addition of the … Read more
Storage vMotion is one of the most astonishing features that VMware brought to the universe of virtualization. I’m certain that storage Admins will admit the migrating Data from on storage array to another can be quite complicated. On physical host it is almost impossible to do such migration without any downtime. Well, Storage vMotion accomplish … Read more
Compression of DBs backup is a nice feature that came with MSSQL 2008 and later. It could be handy in some situation but of course, compression costs resources on the server. I did some tests with a MSSQL server on which I restored DBs of vCenter and VMware Update Manager from a real production environment. … Read more