The following script will update the syslog server of all Esxi hosts in a specific cluster Two variables you’ll need to edit are $ClusterName and $SysLogSvr
Category: ESXi
Auto Deploy ESXi with Cisco UCS
I was tasked with auto deploying around 100 Ciscso UCS blades with stateful ESXi 7.0 on SD cards with as little touch as possible for a new environment There are various ways of doing this but it was decided that the service profile name in UCS would need to match the ESXI host. This means Read More…
Get Install Date of ESXi Host
if you need to know when the ESXi OS install was: esxcli system stats installtime get Example output: 2021-09-07T17:59:32
Auto Deploy Installs ESXi with Blank Password
By default, when using Auto Deploy the password will be blank. In order to change this behaviour edit the host profile to be Fixed password Configuration This example is using Esxi 7.0 Security Services -> Security Settings -> Security -> User Configuration -> root -> Fixed password configuration -> {Enter Password}
Unable to install Rocky Linux 8 in ESXi 7
Problem When attempting to install Rocky Linux 8 on an ESXi 7.0 host the boot iso (minimal) was not being picked up at all and I was just getting the Attempting to start up from message. Solution To fix the issue disable Secure Boot option then try again. It appears secure boot is not supported Read More…
Change iSCSI Adapter Name – ESXi 6.7
Problem I accidentally forgot to set a hostname before making the iSCSI software adapter live..There are no datastore attached to the host yet but i like the IQNs to be recognizable. Solution This ESXI was newly created so please don't use these commands on a live system unless you've done your due diligence – or Read More…
HP DL460c Blade Randomly Not Recognising SD Card on Reboot
Problem When we reboot an HP DL460c Gen9 blade approximately 50% of the time it would not find the SD card and thus not boot. Resolution When booting -> Press F9 (System Utilities) -> System Configuraion -> BIOS/Platform Configuration (RBSU) -> System Options -> USB Options -> USB 3.0 Mode. Set to Auto Save Read More…
ESXi 6.5 – 503 Service Unavailable
Problem There was a storage issue which caused one particular host not to recover correctly. I was unable to login to the ESXi GUI and when I tried to restart the management services the GUI completely stopped functioning with the following error: 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x03ff40e8] _serverNamespace = / action = Read More…
Host profile apply failed with error: Error: A specified parameter was not found
Issue: Running vSphere 6.7 I applied a host profile to a cluster. A couple of hosts didnt like the host profile so I decided to detach it entriely. I was still presented with the error: Host profile apply failed with error: Error: A specified parameter was not found Resolution There are two ways of Read More…
NSX Alert: Possible DHCP DOS Attack on Host
Problem Running NSX. 6.4.3. An error was keep appearing on one of our 6.7 ESXi hosts: NSX Alert: Possible DHCP DOS attack on host Resolution I believe this is a false positive from a bug in 6.4.x To check if there are any issues log into the affected ESXi host and run the following Read More…
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