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Tag Archives: vSphere5
Secondary machine of a Fault Tolerant set still hanging around
I had an issue today where the secondary instance of a virtual machine with Fault Tolerance enabled was registered to a host (vSphere 5 ESXi) – even tho the original VM wasn’t in inventory at all. Sorry, no screen shots … Continue reading
Posted in Computing, Virtualization, VMware Tagged fault tolerance, FT, troubleshooting, vSphere5 Leave a comment
Shooting yourself in the foot is bad (Where are my swap files?)
vSphere by default stores vswap files (the files used when your host runs out of physical memory to allocate) with the local machines. However, you can choose (on a per VM or per-host basis) to direct all swap files to … Continue reading
Posted in Cloud, Computing, Storage, Virtualization, VMware Tagged configuration, ESXi, storage, swap, troubleshoot, vSphere5 Leave a comment
Where oh where did that little vCSA go?
The VMware vSphere vCenter Server Appliance (vCSA) is a niflty little management option available with all kits and editions of vSphere, letting you manage your environment with almost* all the bells and whistles without needing a separate Windows license. Sounds … Continue reading
Extensions of Raw
I’ve seen some docs and data out there that exhibit confusion over the file extension for an RDM file, describing it as .rdm.vmdk or -rdm.vmdk or other variations. A quick ls from a VM with a RDM shows: there is … Continue reading
Posted in Computing, Storage, Virtualization, VMware Tagged ESXi, rdm, storage, vSphere5 Leave a comment
Thin Expansion (vSphere5)
Here’s a curious one. The max size of a thin-provisioned VMDK on a VMFS5 datastore is 2TB. If you create a new VMDK you’re allowed to create it at 2048GB/2TB. However when you go to expand an existing VMDK … Continue reading
Posted in Computing, Storage, Virtualization, VMware Tagged commandline, ESXi, storage, vSphere5 Leave a comment
ESXi no management network redundancy
After configuring a vSphere cluster for High Availability you might see this message on the summary page of your hosts. It’s a nice reminder that your VMkernel Port carrying management traffic only has one NIC available, and is flagged by … Continue reading
Jumbo vs Flow Control
Don’t forget to check your Ethernet switches for Jumbo vs Flow Control support and recommendations – and double check your config to make sure it matches. Some switches support both, some prefer one over the other – or you might … Continue reading
Posted in Computing, NetApp, Storage, Virtualization, VMware Tagged ESXi, HP switch, iSCSI, NetApp, networking, performance, troubleshoot, vmware, vSphere5 1 Comment
Updated VMware VM performance troubleshooting KB entry
More of a list of common troubleshooting solutions than “best practices” but an interesting series of reads nonetheless Troubleshooting ESX virtual machine performance issues
VMware vSphere Fast Track v5
A new infrastructure class has been added to the current list, “VMware vSphere: Fast Track [V5.0]” vSphere FastTrack V5 Datasheet While it shares the same name as a 4.1 class it seems to be closer to a 5.0 version of … Continue reading
Posted in Computing, Virtualization, VMware Tagged classes, Education, ESXi, training, vcenter, vSphere5 Leave a comment
vSphere Licensing: Part 8 ESXi Free = 32GB Hard limit?
In the mix of licensing specifics around ESXi/vSphere 5 is the idea that for a paid license you have a soft limit – the vRAM entitelment is a high-water mark over a period of time that you can exceed briefly … Continue reading
