March 14, 2017
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One of the most popular blog posts in the archive has been scripting recovery plans in Zerto. This is most likely because one of the most frequent requests I hear is the ability to control the boot ordering of Virtual Protection Groups (VPGs), not just the VMs within a VPG. This makes total sense when you have multiple tiers of applications and you want to recover them in order of priority or based on inter-dependencies.
In version 5.0 U2, Zerto included the ability to reverse the protection using the REST API. This meant I could finally deliver a script that automates failover and failback operations in a orchestrated fashion! In a first for virtuallysober.com I decided to give an overview of the script using a video:
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March 26, 2014
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To protect VMs with Zerto they need to be placed into Virtual Protection Groups (VPGs) which are consistency groupings of VMs that are typically configured on a per application basis. A VM can only exist in 1 VPG at once, you can only failover the entire VPG and you can define the boot order of VMs inside each VPG.
A common request I receive is to specify a boot order between VPGs (a recovery plan) so that you can bring VPGs online in a specified order with time delays and pre/post failover scripts. A perfect use case is bringing Application 1 (I.E a Finance DB) online before Application 2 (I.E a CRM). You could work around this by placing all the VMs that form both applications in the same VPG, but this then removes the fidelity of failing over an individual application in the cases of logical failures. Another use case is running a site wide script that should only be initiated when failing over everything.
Based on this requirement I decided to create the Recovery Plan script. Read more of this post