detect memory leak
Jul 8th
Sometimes you can have a slugy server. And still in this time (2010) there are applications that somehow have a memory leak.
I had this recently with a new datawarehouse application.
The symptons where that virtualcenter started swapping memory and started ballooning. Also the % commited bytes in use (memory\% committed bytes) for the system was very [...]
some lessons learned vm hardware upgrade to version 7
Apr 6th
Before i decided to upgrade the virtual hardware from version 4 to version 7 i googled a bit to find out if i would run into some issues. At that time i didn’t find anything.
The question i had myself was if the mac address will change because some license servers need the same mac address. The [...]
First impression of qnap ts509-pro.
Dec 29th
Yesterday I received my qnap ts509. Of course I unpacked it like a little child and couldn’t wait to get it fired up.
Unfortunally the raid5 setup and format of 7 TB took more than 8 hours to complete.
So today was the first day I could try out the qnap.
I received some iometer configuration files and [...]
powercli set-multipathpolicy
Dec 22nd
In big vmware environments with a lot off physical vmware servers it can be a pain in the ass to load balance the luns between the different hba’s. Especially when you have to use the fixed path policy and have an active/active san.
I always try to set all the even luns to the hba with [...]
vim.fault.HostConnectFault: Failed to acquire session manager while querying for local ticket. (503 Service Unavailable)
Nov 17th
when booting up my test esx 4.0 machines i could not connect to the esx hosts through the vi client, i could connect to the esx host with putty but running a command like
vmware-cmd –l gave me a error like this
vim.fault.HostConnectFault: Failed to acquire session manager while querying for local ticket. (503 Service Unavailable)
after some [...]
virusscan exclusions on hyper-v
Nov 13th
virus scanners become smarter and smarter and these days not everyone is excluding certain files or directories anymore.
but i must say that i still make virus scan exclusions, because my opinion is that avoiding problems is better than fix (heal) them. For hyper-v this is the same, maybe more important because you are relaying on [...]
Quick view at vSphere capacityIQ
Oct 27th
Today i had a quick look at capacity iq
What does it do ?
VMware vCenter CapacityIQ is a value-add component of the VMware vCenter family of management solutions, providing capacity management capabilities for virtualized datacenter or desktop environments. CapacityIQ integrates seamlessly with VMware vCenter Server, ensuring that your virtualized infrastructure capacity is always predictable and efficiently [...]
Ultimate Study-guide-for-vcdx-enterprise-exam-35
Sep 11th
I am also studying for the vcdx enterprise exam. I first looked on the internet for other posts on the enterprise exam. All these guys did a great job on creating a study guide for the enterprise exam based on the blueprint
To most important blogs about this are from peter bosch (the first one blogging [...]
HA FAILOVER CAPACITY CALCULATION
Aug 25th
There are a lot of HA failover capacity calculation blogs out there. The most apply to virtualcenter2.0.1 not to 2.x.
Virtualcenter 2.x (and 4.x) uses other calculations than virtualcenter 2.0.1. if you are still using version 2.0.1 use the following blog at vmwarewolf. For virtualcenter 2.x there is also a great post at virtualgeek , based [...]
11 vmware template tips
Jun 24th
The following vmware template tips is no rocket science, but i have seen a lot of vmware environments and the following settings are not always set. For all those settings the virtual machine must be shutdown. So setting these values already in the vmware template can save you a lot of work afterwards .
vmware [...]
