Don’t you just love it when something fails with an absolutely useless error message? Routine patching of a vCSA a while back (alright, two years back. Sometimes these things end up on the back burner!)
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Working with ESXi Core Dumps
Collecting core dumps gives VMware support (and massochists) something to evaluate in the event of an ESXi PSOD. Collecting and viewing ESXi core dumps involves serveral elements- ESXi configuration, collector configuration and a dump viewer.
Read morePerfmon: ‘Unable to Add These Counters’
I found myself in a situation recently where a Windows Server 2012 R2 instance suddenly began suffering from high CPU utilisation. Briefly watching process CPU usage in Task Manager showed the Windows Management Instrumentation (WMI)
Read moreFully Disable IPv6 DHCP on Windows Server
I’ve been playing with IPv6 around the lab recently, doing a bit of OCD IPv4 style subnetting except with, ya know, stupidly long addresses. Off I’d went to the GUI to configure static addressing as
Read moreISCSI, Delayed ACK and the Confused VMware Hypervisor
I’ve recently had the pleasure of taking over management of a customer’s DR environment. It’s in pretty good shape, mostly. Much more modern hardware than I often see, save for the iSCSI VM storage. iSCSI
Read more‘Connection Control Operation Failed for Disk’ with Content Libraries
When trying to attach an ISO stored in a VMware Content Library the operation fails with the following error- Connection control operation failed for disk 'sata0:0'. To resolve follow these steps- Head over to the
Read moreRemoving Orphaned VMs Managed by Plugins from vCenter 6.7
Tonight I found myself in an unlikely situation but one I’ve been in (and got out of) before. Fortunately, past me didn’t document how he got out of it, so I had the pleasure of
Read moreESXi LUN Masking with ESXCLI
Take a look at the following screenshot- How many disks are mapped or connected to this host? If I then showed you this screenshot, would it change your mind? LUN masking on ESXi goes against
Read moreReset Locked ESXi Root Account
By default, 10 failed logins to ESXi will lock the account. vCenter opens up a few options for changing a password (setting a new password with a host profile being the obvious one that springs
Read moreProvisioning ESXi Hosts with Auto Deploy
As far as a TLDR goes, Auto Deploy is a VMware feature that allows taking a bare metal host, PXE booting into ESXi, applying configuration and bringing it, as a working, fully configured host; into
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