NCA-GENL case studies
NCA-GENL · Put your knowledge to work in context.
The NCA-GENL (Nutanix Certified Associate – Generalist) is an entry-level credential for IT professionals who want to demonstrate foundational knowledge of Nutanix enterprise cloud technology. It suits administrators, engineers, architects and pre-sales or operations staff who are starting with the platform, as well as candidates moving from traditional three-tier infrastructure or another hyperconverged product. The NCA-GENL case studies are 5 cases and about 3,905 words.
1Change Window Collision: A CVM Fails Mid-Expansion
An engineer is working a four-hour change window on a four-node NX-3060 cluster running AOS 6.7 on AHV, RF2, 180 production VMs, 61% storage utilization and one Prism Central VM. The plan is to add two new nodes, enable EC-X, then upgrade AOS to 6.8 with LCM.
807 words, about 4 min2Five-Minute RPO on a Twelve-Millisecond Link
Two sites 400 km apart are linked by a 1 Gbps fiber path with 12 ms round-trip latency and 35% peak utilization. Site A runs a 12-node AHV cluster hosting 300 VMs; site B holds an identical idle cluster for disaster recovery.
755 words, about 4 min3Intermittent VLAN 40 Failures on a balance-slb Bond
A three-node AHV cluster runs AOS 6.7 with two 10 GbE uplinks per host (eth0, eth1) in the default OVS bond br0-up, configured as balance-slb. eth0 connects to switch A and eth1 to switch B; the switches are not stacked and have no MLAG.
772 words, about 4 min4One-Night Cutover of 120 VMware VMs
An enterprise is migrating 120 VMs from a six-host vSphere 7 cluster to a new six-node AHV cluster. The inventory: 95 VMs with current VMware Tools (60 Windows, 35 Linux), 8 VMs carrying snapshots, 6 with ISO images attached, and 5 Oracle RAC nodes that use physical-mode RDMs for data plus a shared VMDK for the quorum device.
751 words, about 4 min5Three Audit Findings and One Weekend Window
A six-node AOS 6.5.1 cluster managed by Prism Central 6.5 hosts 210 VMs. An internal audit makes three findings: data at rest must be encrypted; management access must be limited to two jump hosts and the Prism Central address; and all AOS nodes must be on a supported release within the quarter.
820 words, about 4 min