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showing posts tagged with 'vcsa'
 
Resizing vCenter VCSA disks (with auto-grow)
edited by on August 18th 2021, at 13:53
Occassionally, the vCenter may run out of disk space on a specific disk, in which case it may become necessary to resize it. While there are many articles written about resizing a disk (like this), VMware also provides a very useful auto-resize script which automatically does the work for you, significantly improving the user experience even to those who are not familiar with resizing partitions and/or LVM in Linux. The best part is that it can be done online, so no need to stop services.

Log on to the vCenter console through SSH or through VMRC using the root account. If you wish to use SSH, you may need to enable it first through VAM.

Determine which virtual disk needs resizing. VCSA use  ...
 
VMWare vMotion: compatibility check fails with connection refused
edited by on December 9th 2019, at 16:54
I had an issue where vMotion would no longer work. When selecting the target host in the vCenter UI, the compatibility check would fail with the error:

Error
A general system error occurred: Connection refused: The remote service is not running OR is overloaded, OR a firewall is rejecting connections.

A Google search for the issue reveals quite a bit of possible causes, mostly pointing to several more standard causes, which were all in order. When digging deeper in the logs, I stumbled upon the same message appearing in /storage/log/vmware/vmware-vpxd/vpxd.log.

Continuing the search, someone mentioned that it could be caused by services not started, which can easily be revealed when loggi  ...
 
VMWare VCSA/PSC: disable password expiration for the root account from the CLI
edited by on December 9th 2019, at 15:45
You can disable password expiration from the command-line when logging on using SSH or by enabling the Bash shell. Note that you will need root privileges (i.e. root account) to make this change.

If shell access is not enabled, you need to enable it first:

Log on to the appliance management portal: https://ip-or-fqdn:5480/.

In the Navigator, click on Access. On the right side (Access Settings), click on the Edit button.

Tick the box next to Enable SSH Login for remote access, or if you rather prefer making the change through the VMRC, check the box Enable BASH Shell. Then click OK. The change is effective immediately.

Log on to the shell using either SSH (using PuTTY or another applicat  ...
 
VMware vCenter Server Converge Tool
edited by on October 9th 2019, at 15:19

A very nice article explaining how to migrate from an external Platform Service Controller to an embedded one:

https://blogs.vmware.com/vsphere/2019/02/understanding-the-vcenter-server-converge-tool.html

A note about versioning: use the same version of the converge tool as the version of your vCenter and PSC. Otherwise the converge will most likely fail (as it did when using 6.7 tool on a 6.5 environment).

 
VCSA: resizing the database disk
edited by on September 9th 2019, at 16:54
On VCSA, the database is stored on a separate disk. It could happen that this disk runs out of room, causing Vcenter to no longer function properly. One way to resolve this is by running database clean up as mentioned in KB 2110031. However, if this is not possible, or you don't want to clear out the data, you can also resize the disk.

For this to work, you'll need root access and access to the bash-shell, either on the console or through SSH.

Before resizing, identify the physical disk to be resized. For VCSA 6.5 and 6.7, this should normally be Disk 8 (device node in linux = /dev/sdh), but your setup may vary, so it's best to double-check this.

In VCSA 6.5 and 6.7, the database is locat  ...
 
How to reset root password of vCenter Server Appliance or Platform Services Controller
edited by on March 25th 2019, at 13:33
You can reset the root password of any (recent) VMWare appliance, such as the vCenter Server Appliance (VCSA), or Platform Services Controller (PSC) by following the procedure outlined here. Note that you will need to have physical or console access to perform the reset. The reset also requires a restart of the appliance so you'll need to schedule downtime for it.

First of, take a snapshot or backup of the virtual appliance before proceeding. In case the reset should fail, you'll always have a backup to go back to.

Restart the appliance. Right after the BIOS screen, the PhotonOS splash screen will appear for a few seconds.

During this time, press e to enter the GNU GRUB edit menu, allowin  ...
 
Toggling the vCenter Server Appliance 6.x default shell
edited by on March 25th 2019, at 12:15
You can change the default shell (used when logging on with VMRC or through SSH). By default, this is set to the appliance shell, providing limited functionality. If you rather have BASH as the default shell, you can switch this.

Log on through SSH or VMRC with the root account.

If shell access hasn't been activated yet, run this first:

shell.set --enabled true

If you are running the appliance shell, type shell to launch the BASH shell.

In the BASH shell, at the prompt, type the following to change the default shell to BASH (instead of the appliance shell):

chsh -s /bin/bash root

You'll need to log out for the changes to take effect. The next time you log in, you will log on directly   ...
 
Selective deletion of tasks, events, and historical performance data in vSphere 5.x and 6.x
edited by on January 11th 2019, at 10:04

In the event of migrating your old vCenter Server to a new version (or from Windows to the appliance), it may become necessary to first clear out old historical data. Not only will this speed up the migration process considerably, it will also prevent certain issues which may block the migration from completing successfully.

VMWare provided a KB with database scripts which allow you to selectively purge historical data and decreasing the database size: KB 2110031.

 
 
showing posts tagged with 'vcsa'
 
 
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