Massimo
Joined 4 years ago
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SLA demonstration counter
Hi all, I'm struggling in order to obtain, in a "custom" datapoint, the percentage of the service availability relative to a time interval in which a certain datapoint has assumed a specific value. In other words... Let's take the "HeartbeatStatus" datapoint of the "VMware_vCenter_VMStatus" datasource: it's output can be 0 (if ok) or >= 1 (if not ok). I'm looking for a way to count the percentage, within a preceoncerted time interval, in which the datapoint takes on a certain value, for example "during the last 30 days, HeartbeatStatus has been 0 (ok) 98% of the time". It's a sort of SLA demonstration. Is there a way to obtain that metric with regular expressions on a complex datapoints, or even inside a widget? Many thanks Regards M.11Views0likes1CommentVMs monitoring based on vSphere folder
Hello, In our infrastructure we have a vCenter that contains several thousand VMs. The monitoring of this device is complex and slowed down by the tens of thousands of datapoints extracted for each VM, moreover it is necessary to apply different rules and standards depending on the folder where the VM resides. Consulting the query system (Groovy) of the "VMware_vCenter_ *" datasources, I thought of changing the vCenter query method via ESX API, in particular by invoking the Java "searchManagedEntity" method in an alternative way during the instance extraction phase, in order to focus the extraction only on specific and reduced number of instances. In this way, it is possible to extract only the information relating to the contents of a folder on vCenter, which was the set goal. From: // Open a connection to the vSphere API, get a service instance and root folder def svc = new ESX(); svc.open(addr, user, pass, 10 * 1000); // timeout in 10 seconds def rootFolder = svc.getServiceInstance().getRootFolder(); // Get all of the VM's def vms = new InventoryNavigator(rootFolder).searchManagedEntities("VirtualMachine"); To: def String fName = hostProps.get("esx.folder"); // Open a connection to the vSphere API, get a service instance and root folder def svc = new ESX(); svc.open(addr, user, pass, 10 * 1000); // timeout in 10 seconds def rootFolder = svc.getServiceInstance().getRootFolder(); def fTarget = new InventoryNavigator(rootFolder).searchManagedEntity("Folder", fName); // Get all of the VM's def vms = new InventoryNavigator(fTarget).searchManagedEntities("VirtualMachine"); This code is from the "VMware_vCenter_VMDiskCapacity" datasource, but the same concepts apply for all the datasources based on Groovy + ESX API on vCenter instance level interrogation. By cloning the DS and adding different properties it is even possible to apply the same code on multiple different folder(s) of the same vCenter, rendering so simpler (at least for us) to define custom alert exceptions or alert rules (for example, one for "production" VMs, one for "testing" VMs, and so on...).30Views1like1Comment