I mentioned in ESXi Lessons Learned 2 that Jumbo Frames were not supported for the VMkernel. It seems that it’s a mistake in the ESXi Config Guide as mentioned in this blog article on the VMware ESXi Chronicles Blog. Charu already contacted me about it but we needed to wait to update you guys before we received the definitive green [...]
Rob de Veij has just updated RVTools to version 2.7.3. This excellent tool now includes the following additional features and fixes: Version 2.7.3 (December 19, 2009) Files in .snapshot directories are no longer reported as zombies. CTK files are no longer reported as zombies. The problems with VM files which are placed in the root directory are now solved. Under [...]
I received Michael White’s(VMware BCDR Specialist SE) weekly newsletter over the weekend and the following is a question I also receive on a regular basis so why not blog it?! I had a disagreement with a friend about where to get SRA’s from. He was under the impression that we didn’t have the arrays in our premises for all of [...]
This week we(Frank Denneman and I) played around with vscsiStats, it’s a weird command and hard to get used to when you normally dive into esxtop when there are performance issues. While asking around for more info on the metrics and values someone emailed us nfstop. I assumed it was NDA or at least not suitable for publication yet but [...]
I was doing performance troubleshooting with Frank Denneman this week and we wanted to use “vscsiStats” to verify if there was any significant latency. We checked multiple whitepapers before we went onsite and our primary source was this excellent article by Scott Drummonds. After start vscsiStats and receiving a “successful started” we waited for 15 minutes and verified if we [...]
How to identify which View Composer replicas are not in use and can be deleted
VMware has just released Appspeed 1.2. AppSpeed inspects traffic flowing over the vSwitch, discovers and maps the environment, monitors performance against SLAs and enables root cause analysis. Does sound like a tool you could use in your virtualized environment doesn’t it? New Features: VMware vCenter AppSpeed provides proactive performance management and service-level reporting for applications running within virtual appliances. By [...]
