![]() Alarms can change state from mild warnings to more serious alerts as system conditions change, and can trigger. ![]() This subsystem also enables you to specify the conditions under which alarms are triggered. This subsystem tracks events happening throughout vSphere and stores the data in log files and the vCenter Server database. Note: Previous to ESXi 5.5, DSNRO was a global setting named Disk. If you want to be able to format the JSON output in a more friendly manner, you can pipe the string output to python -mjson. vSphere includes a user-configurable events and alarms subsystem. the first virtual machine active on a datastore will have its queue depth limited. The script also supports a -json|-j output option, here is an example of that: Here is a screenshot running the script directly against an ESXi host (you can also connect to vCenter Server as well): To demonstrate this new API property, I have created an example vSphere SDK for Python (pyvmomi) sample called: list_datastore_info.py This was not very reliable as it could be a remote VMFS Datastore but only exported to one host so far and the other major caveat is that this property was only available when connecting to a vCenter Server. It is really in need of maintaining some threshold of free storage always to avoid potential issues. In the past, the only semi-reliable method for checking whether a VMFS datastore was local or not was to see if the " multipleHostAccess" property was set to true, which meant it was a shared VMFS. In many situations, it is necessary to track the usage of datastore usage in our environment because if your datastore is full, it will cause a potential outage to your virtual machines in your environment. It looks like we now have a simple way of checking whether a given VMFS Datastore is local or not. This property is updated when the virtual. ![]() Find the ‘Datastore usage on disk’ alarm and go into it and take some screen shots of how it is setup, we will use these later to recreate. While going through the vSphere API 5.5 Reference, I noticed a new property was introduced in vSphere 5.5 API called " local". The timestamp when the virtual machine was most recently powered on. After putting your datastores in the proper folders click on the vcenter, or esxi object (whichever is the top level) and go to the alarms tab (you will need to click on the Definitions button as well. I was recently working on a script for a friend that collects some basic information about VMFS based Datastores. ![]()
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