Extending a logical volume online

Posted by & filed under Server Admin, VMWare.

I’ve written about this in past posts. Here is an updated article straight from VMWare: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006371   Power off the virtual machine. Edit the virtual machine settings and extend the virtual disk size. For more information, see Increasing the size of a virtual disk (1004047). Power on the virtual machine. Identify the device name, which is by… Read more »

VMWare Update Manager Fails

Posted by & filed under Uncategorized, Virtualization, VMWare.

I received a fairly generic error when running VMWARE Update Manager against some hosts: No real useful information. The actual log is available on the VCSA 6.5 at: /var/log/vmware/vmware-updatemgr/vum-server/vmware-vum-server-log4cpp.log In my case it was as simple as the DNS being set incorrectly on the ESXi hosts due to some networking changes:

Other threads that might… Read more »

PowerCLI – Get a VM’s Disks

Posted by & filed under Virtualization, VMWare.

PowerCLI snippets to get a VM’s disks This command will retrieve the specified VM’s attached disk paths:

But we can also focus on the filename:

We can also see the other columns available:

We could also do something like get the Disk paths for all guests:


Microsoft Online Services Network IP Ranges

Posted by & filed under Email, Firewalls, Networking.

I recently needed to whitelist some Microsoft service addresses. I found the following information containing the Microsoft IP space for services. Exchange Online Protection IP Addresses – technet.microsoft.com/en-us/library/dn16…  

Platform services controller — Migrating to external psc and verifying replication partners

Posted by & filed under Virtualization, VMWare.

In preparation for migrating from vCenter 6.5 w/ embedded PSC, to a external PSC I needed to validate the replication between my new external PSC and the embedded platform services controller. To validate PSC replication partners, the vdcrepadmin utility can be used. For more information see https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2127057

Note in the above commands, for the -w… Read more »

vCenter Server (VCSA) 6.5 – Add root CA cert to Windows Server 2016 AD to enable the default VCSA cert to be trusted

Posted by & filed under Active Directory, Server Admin, Virtualization, VMWare.

The VCSA has it’s own CA built in. It uses that CA to generate certs for all the various services. There are two options available to ensure that the certificate is trusted in the browser: Generate a CSR for the cert and submit to a CA who can generate the cert. Use Microsoft Active Directory… Read more »

vCenter 5.5 to 6.5U1 Upgrade – SSL Errors

Posted by & filed under Server Admin, Virtualization, VMWare.

Ran into some issues with the ssl certs on the vCenter server when trying to run the Migration Assistant. Notes on the will follow, but first links to articles on the actual upgrade: Best practices for upgrading to vCenter Server 6.5: https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2147686 Supported and deprecated tologies for vSphere 6.5: kb.vmware.com/selfservice/search.do?cmd=… Migrating vCenter Server for Windows to VCSA: docs.vmware.com/en/VMware-vSphere/6.5/co…… Read more »

VCSA – Joining to AD Domain fails – Error: Enabling Active Directory failed. ERROR_GEN_FAILURE 0x00000001f

Posted by & filed under Active Directory, Server Admin, Virtualization, VMWare.

Attempting to join a freshly deployed VCSA server to a AD domain can be problematic if SMB1 is disabled. In my case it was 5.5 but I believe this issue persists in 6.x. SMB1 was disabled on the DC as it should be as it is broken and insecure. The problem lies in the fact… Read more »

FreeBSD identifying failed disk

Posted by & filed under Hardware.

Using the sas2ircu utility from LSI, we can blink the drive LED to help ID the failed drive correctly. Of course this requires a LSI card. Some LSI cards may need to use the sas3ircu utility instead. There have been some reports from the interwebs that this utility failed to blink the correct drive, but… Read more »


Posted by & filed under Adruino, Hardware, Hardware Development, Programming.

PlatformIO is an open source ecosystem for IoT development Cross-platform build system. Continuous and IDE integration. Arduino and ARM mbed compatible   Came across this cool IDE, built on top of Atom for dev of iot. There is also a commercially supported offering. http://platformio.org/