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Rubrik -  - Reducing the Impact of Application Stun

Architecture

Reducing the Impact of Application Stun

Application stunning during the snapshot process is a topic that often bubbles up in customer conversations on data protection for VMware environments. To level set, application stun goes hand-in-hand with any snapshot operation. VMware stuns (quiesces) the virtual machine (VM) when the snapshot is created and deleted. Cormac Hogan has a great post on this here. Producing a snapshot of a VM disk file requires the VM to be stunned, a snapshot of the VM disk file to be ingested, and deltas to be consolidated into the base disk. If you’re snapping a highly transactional application, like a database, nasty side effects appear in the form of lengthy backup windows and application time-outs when the “stun-ingest-consolidate” workflow is not efficiently managed. When a snapshot of the base VMDK is created, VMware will create a delta VMDK. Write operations are redirected to the delta VMDK, which expands over time for an active VM. Once the backup completes, the delta VMDK needs to be consolidated with the base VMDK. Longer backup windows lead to bigger delta files, resulting in a longer consolidation process. If the rate of I/O operations exceeds the rate of consolidation, you’ll end up with application time-outs.Rubrik was designed…
Rubrik -  - How Red Hawk Eliminated Tape for Good

Customers

How Red Hawk Eliminated Tape for Good

Jake Warren, Systems Administrator at Red Hawk Casino, shares how he finally eliminated tape and started using public cloud (Amazon Web Services) as a cost-effective long-term data retention resource with Rubrik. What led you to Red Hawk? I’ve been building computers and networks since I was in high school so working in IT was a natural career choice. I honed my IT chops working as a desktop technician for a medical company during my college years and then worked my way up over the next 20 years from being a network admin to designing and implementing new technologies at casinos. When Red Hawk opened its doors in 2008, I left home (Michigan) to help build the IT environment and team from scratch at the Northern California-based casino. What makes running IT at a casino unique? Like most places today, IT is chartered with keeping the business running 24/7. Within a casino, that means ensuring guests can play slots, poker, whatever they want at any time they want. A casino environment is unique since there is a significantly larger number and greater variety of systems that each admin needs to manage. At Red Hawk, we have two sys admins managing close…