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Category Archives: vSphere
Warning – vSphere 5 with NetApp NFS Storage
For those of you using NetApp, or IBM N series, NFS storage with VMware vSphere 5 or looking to upgrade to vSphere 5 with NetApp NFS storage beware of a NetApp bug causing the ESXi hosts to lose connection to … Continue reading
Posted in NetApp, Storage, VMware, vSphere
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PowerShell Script to report on LUNs mapped to IGroups
I had a requirement to produce a report of which of my NetApp LUNs were mapped to which of my 3 VMware vSphere clusters. Each cluster has its own Igroup on the NetApp filer: – Prod-Cluster Dev-Cluster UAT-Cluster Some LUNs … Continue reading
Posted in NetApp, Powershell, vSphere
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ESXi Hosts Becoming Disconnected from vCenter
Recently I have been experiencing problems with ESXi 4.1 hosts becoming disconnected from vCenter. Right clicking on the host and selecting Connect does not normally fix the problem. Also logging in directly to the host with the vSphere Client usually … Continue reading
Posted in VMware, vSphere
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Repeating ADAM_VMwareVCMSDS Error Every Minute in Windows Active Directory Web Services Log
I have seen the following error repeat EVERY minute in the Windows Active Directory Web Services Log on Windows 2008 R2 Servers running VMware vCenter 4.1. “Active Directory Web Services encountered an error while reading the settings for the specified … Continue reading
Posted in Configuration, Installation, VMware, vSphere
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ESXi4.1 vMotion using incorrect vmnic
I have a number of esxi 4.1 update 1 hosts configured as follows: – vSwicth0 – vmnic0, vmnic1, vmnic2, vmnic 6 – all active VMKernel Port – Management – enabled for Management – Active vmnic0, Standby vmnic2, unused vmnic1 and … Continue reading
Posted in Configuration, VMware, vSphere
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Storage vMotion taking twice as long when block sizes do not match
While trouble shooting performance issues at a customer I noticed in esxtop that the MB written/s were double the MB read/s when performing a Storage vMotion when the block sizes of the source and target datastores where different. The customer … Continue reading
Posted in VMware, vSphere
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Changing ESX IP Address via Service Console
If you need to change the ESX (3.5 or 4.0) Service Console IP address but can not connect to it via the vSphere (or VI) Client then it can be changed from the console. Access one of the virtual terminals, … Continue reading
Posted in VMware, vSphere
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Installing vSphere 4 on IBM System x3650M2 via KVM Switch and IBM 17″ Rack Flat Panel Monitor
When installing vSphere 4 on an IBM System x3650M2 connected via a 2×8 Local Console Switch to the IBM 17″ Rack mounted Flat Panel Monitor the display could not be displayed on the screen using the Graphic Mode, I got … Continue reading
Posted in Installation, VMware, vSphere
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Setting Default Gateway on vSphere 4
I had an issue recently where I had installed ESX4 on a number of hosts but had not been allocated IP addresses for them. So I installed them using DHCP. Later when I had been given the IP addresses I … Continue reading
Posted in Configuration, VMware, vSphere
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vSphere 4 Partitions
The following partitions are recommended when installed ESX 4 / ext3 5120MB swap 1600MB /home ext3 2048MB /tmp ext3 2048MB /var ext3 4096MB /opt ext3 2048MB Note that the installer will automatically also create the following but you do … Continue reading
Posted in Installation, VMware, vSphere
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