vCenter 6.0 Update 2a and ESXi 6.0 Express Update 8 Released
VMware has released vCenter 6.0 Update 2a, this is a minor update, that contains only bugfixes and security updates. See the release notes here: http://pubs.vmware.com/Release_Notes/en/vsphere/60/vsphere-vcenter-server-60u2a-release-notes.html And there is a new build of vSphere ESXi, this contains some important fixes for vSAN and other. See the release notes here: https://kb.vmware.com/kb/2146984 and: https://kb.vmware.com/kb/2146985
vSAN error “Cannot complete file creation operation”
My Colleague Anders Hansen was enabling VSAN on a cluster. After the creation 4 out of 5 nodes showed this error,, when running “VM Creation test”. ”Cannot complete file creation operation.Failed to place witnesses. There are currently 0 usuable disks and 1 more usable disks are needed in witness node. Failed to create object” After he contacted…
vSphere 6.0 Update 2 Released
ESXi 6.0 U2 New features: VMware host client – back to the good old web client from ESX version 1.x and 2.x, or maybe not this is a HTML5 Client. High Ethernet link speed – ESXi 6.0 U2 supports 25 G and 50 G ethernet link speeds VAIO Enhancements (vSphere API for I/O Filtering) –…
vSAN and HBA Driver support
Be aware of using the correct SCSI/SATA driver for vSAN supported controllers. In the vSAN health check you may see something like this: After checking the Compability list, I found that this controller supported the megaraid_sas. The megaraid_sas is what’s referred to as legacy driver, so you have do disable the native driver. See the KB for instruction: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2044993 Note:…
vSAN issue “Host cannot communicate with all other….”
There is a bug in vSphere 6.0 Update 1b that could give som false warnings, like “Host cannot communicate with all other nodes in the Virtual SAN enabled cluster”. The problem and solution can be found in this KB: http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=2143214 One of my colleagues tried this but it does not always work, and we had to leave the customers…
vSAN problem
I had a customer that is running vSAN, and had recently upgraded to vSphere 6.0. They wanted to upgrade VMFS-L to vSAN-FS (the new drive format). But they could not do this because 1 host had 2 defekt disk groups on it. The host had been a member of an old vSAN setup, that was scratched. So we…
Sizing of vSAN
I been asked about how to size VMware vSAN solutions, both from Hardware Business Managers and Customers, this have been a manual calculation, with some help from different blogs. Now VMware has released a online tool that you can help: https://vsansizer.vmware.com/ The result of the tool may be that you only need 3 hosts, which is the minimum, but…