Draft of powershell script to sync information between prtg, netbox, ilo/idrac and vcsa, just to show the main ideas.

If we from the beginning tried to link all systems by serial numbers of physical devices, for example esxi server has consistent serial number attribute in all systems like prtg (for example for this we can use prtg Tags), netbox, ilo/idrac and so on, then we can run queries and auto sync data between the systems without tiresome manually syncs (mandatory to check that entered serial numbers are unique and registered in all systems properly). When we initially normalize all systems by enriching each of them by proper serial numbers, then we can create programmatically (using for example powershell modules) … Read the rest

Optimize and save on provisioned storage space in virtualized environment

Before i often over-provisioned the needed storage for VM.

For example for AWS and other cloud services it’s common place to be charged per gigabytes of used EBS and similar storages (for Mongolian iTools, Mobicom and others usually you are charged by subscription plans so it’s unavoidable to pay for not used disk space). Generally it’s not recommended to provision storage space more than necessary. Surely it’s OK to have a reasonable free space for your VMs, but not too much (for example it’s still very common to see created VM which utilize only 3-5% of huge vmdk/AWS EBS and … Read the rest