VMware ESX – Sockets and Cores (Logical Processors)
Mar16

VMware ESX – Sockets and Cores (Logical Processors)

KB ID 0001124  Problem While explaining to a client the difference between Sockets, Cores, Logical processors, I had to revisit this post today, so I updated it for vSphere7 Calculating Sockets and Cores  Essentially; A: Processor Sockets: The Physical amount of CPUs on the motherboard. B: Cores Per Socket: For a dual core processor this would be 2, triple core=3, quad core = 4, hex core = 6, octa core=8, deca core=12, etc. C: Logical...

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Your vSphere Client Session Is No Longer Authenticated
Nov06

Your vSphere Client Session Is No Longer Authenticated

KB ID 0001711 Problem I updated my vCenter to 6.7.0.45100 yesterday, and since then every time I tried to login to the HTML5 web client, it authenticated, let me in, showed me the error (below), then kicked me out again? Solution I assumed, (wrongly) that the upgrade had overwritten the webclient.properties file that controls timeouts. this may be you problem, see the following article If my ‘fix’ does not work for you....

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OVA / OVF  Deployment Gets Stuck ‘Validating’
Nov06

OVA / OVF Deployment Gets Stuck ‘Validating’

KB ID 0001664 Problem I had this problem (on sphere 6.7) the other day when trying to deploy some OVA files on my test network. Solution Well as stated elsewhere I tried reconnecting to my vCenter using its FQDN, this didn’t solve the problem, using Flash or HTML5 didn’t cure the problem either. What did cure the problem was using a different browser! I switched from IE to Chrome and it worked fine. Update: I Also cured...

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VMware: Cannot Resize a VMs Hard Drive?
Sep30

VMware: Cannot Resize a VMs Hard Drive?

KB ID 0001704 Problem One of the lads in support messaged me this week, he needed to raise the size of the hard drive on a VM, and the option was greyed out (not available).  Solution Now assuming you actually have the rights to do this, the problem is ‘nearly always’ that the ‘disk’ in question has an active snapshot on it. Remove your snapshots first. Now you can raise the size. Don’t forget: In your OS...

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PowerCLI: Get All Snapshot Information
Aug03

PowerCLI: Get All Snapshot Information

KB ID 0001690 Problem This was asked on EE today, and it was an interesting one so I wrote it up. How to locate all the Snapshots in your VMware virtual infrastructure, and see how much space they are taking. Solution Use the following PowerCLI; Get-Snapshot * | Select-Object -Property VM, Name, SizeGB, Children | Sort-Object -Property sizeGB -Descending | ft -AutoSize Related Articles, References, Credits, or External Links...

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VMware Converter ‘A file I/O Error Occurred’
Jul20

VMware Converter ‘A file I/O Error Occurred’

KB ID 0001688 Problem It seems every time I use VMware Converter, there’s some new error that jumps up and makes me stumble! Yesterday the problem was; FAILED: A file I/O error occurred while accessing Solution Some searching told me this is actually a DNS problem, (where the converter could not resolve the DNS name of the machine being converted). BUT I had put the FQDN directly into this machines ‘hosts file’ so I...

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