product reviews
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 [...]
Using custom performance charts in virtualcenter
Jun 19th
As every esx engineer knowns its important to pay close attention to the core four components in a Vmware Infrastructure 3. For the most important counters see table below,referring to online documentation on performance monitoring and analysis for more information on these counters and how to interpret them.
Subsystem
Esxtop Counter
VirtualCenter Counter
CPU
%RDY
&USED
Ready
Usage
Memory
%ACTV
SWW/s
SWR/s
Active
Swapin
Swapout
Storage
ACTV
DAVG/cmd
KAVG/cmd
Commands
deviceWriteLatency and deviceReadLatency
kernelWriteLatency and kernelReadLatency
Network
MbRX/s
MbTX/s
packetsRx
packetsTx
Table 1 [...]
vSphere host update utility
Jun 6th
today i upgrade my home esx host with the vSphere host update utility. The reason is simple; I was lazy and wanted to try out this tool , and my white box doesn’t recognize my cdrom so i have to do a remote install. In real enterprise environments i would recommend to do a [...]
Quick review starwind software image converter
Jun 3rd
Findings.
It’s a simple executable which does not do an install, but starts right away with the conversion wizard.
choice for 6 image formats , but no specifiek choice for hyper-v just virtual-pc (which is the same format)
only conversion no import to virtualcenter/vmm of whatsoever
This is how the wizard goes
start the StarWindConverter.exe which can be downloaded here [...]
home nas performance comparison
May 28th
there was already at www.vmug.nl a pointer to a nice site where some home nas (servers) are compared. i have a qnap409 which in my opinion is too slow if you get more then 5 servers on the nas.
today i was looking to the site and couldn’t find it fast enough on google.com and vmug.nl [...]
virtualization comparison
May 26th
today i found a nice blog about virtual infrastructure products: features comparison.
i think its a nice blog, there are some things that should be worked out more like hyper-v has also limited vmdk support and the max memory depends on the microsoft windows version, that you have to pay for scvm2008 also, yearly support is [...]
