vSAN 6.7: Reclaim Disk Space by Converting Thick-Provisioned VMs to Thin on vSAN

First we need to know that objects on vSAN are all thinly provisioned by default and there are not thick disks. Instead, vSAN has the concept of Space Reservation, defined by the Storage-Policy ruleset Object Space Reservation (OSR).In my case after migration of a virtual machine the space was totally reserved even if the Default … Continue reading vSAN 6.7: Reclaim Disk Space by Converting Thick-Provisioned VMs to Thin on vSAN

KB002: Fail to Install/Upgrade NSX-T, due to out of space in bootbank on ESXi

When we install ESXi custom image, there are many VIBs packages inside which may are not required and they make the bootbank fills and stay out of space to install NSX-T packages. Symptoms - You see the following error: - ESXi logs file (esxupdate.log) shows the following: ERROR: vmware.esximage.Errors.InstallationError: ('', 'The pending transaction requires 242 … Continue reading KB002: Fail to Install/Upgrade NSX-T, due to out of space in bootbank on ESXi

NSX-T 2.5: Configure Route Distribution on T0 (Tier-0) Gateway

When you enable route redistribution, the tier-0 logical router starts sharing specified routes with its northbound router. Prerequisites Verify that the tier-0 and tier-1 logical routers are connected so that you can advertise the tier-1 logical router networks to redistribute them on the tier-0 logical router. If you want to filter specific IP addresses from … Continue reading NSX-T 2.5: Configure Route Distribution on T0 (Tier-0) Gateway

NSX-T 2.5: Connect T1 (Tier-1) Gateway to T0 (Tier-0) Gateway

The next picture shows these interfaces types along with a new RouterLink interface in a two-tiered topology. Follow the steps below to connect Tier-1 Gateway with Tier-0 Gateway. 1 – Login on Edge Gateway and type the following command to list the all routes on Tier-0 Gateway. Get logical-router vrf  1 get route 2 – … Continue reading NSX-T 2.5: Connect T1 (Tier-1) Gateway to T0 (Tier-0) Gateway

NSX-T 2.5: Add a Tier-0 Gateway and configure bgp

the Tier-0 gateway provides N-S connectivity and connects to the physical routers. The Tier-0 gateway could use static routing or BGP to connect to the physical routers. The Tier-1 gateway cannot connect to physical routers directly; it has to connect to a Tier-0 gateway to provide N-S connectivity to the subnets attached to it. A … Continue reading NSX-T 2.5: Add a Tier-0 Gateway and configure bgp

NSX-T 2.5: Overlay and VLAN Segments

NSX-T Segments create logically abstracted logical Switch which you can connect tenant workloads. A single Segment is mapped to a unique Gateway that is distributed across the ESXi hosts in a transport zone. A Segment has different named references: “Segment” in the Simplified UI (Policy UI) and logical switch in the Advance UI (Manager UI). … Continue reading NSX-T 2.5: Overlay and VLAN Segments

NSX-T 2.5: Add a Tier-1 Gateway

NSX-T supports a multi-tiered routing between provider router and tenant routing function. The top-tier logical router is referred to as tier-0 while the bottom-tier logical router is tier-1. This structure gives both provider and tenant administrators complete control over their services and policies. There is no dynamic routing between tier-1 and tier-0 LRs. The NSX-T … Continue reading NSX-T 2.5: Add a Tier-1 Gateway

NSX-T 2.5: Create an NSX Edge Transport Node

An NSX Edge Node is a transport node that runs the local control plane. The Edge Nodes are service appliances dedicated to running centralized network services that cannot be distributed to the hypervisors. Important: An NSX Edge can belong to one overlay transport zone and multiple VLAN transport zones. An NSX Edge belongs to at … Continue reading NSX-T 2.5: Create an NSX Edge Transport Node

NSX-T 2.5: Configure a Managed Host Transport Node

If we have a vCenter Server, we can automate the installation and creation of transport nodes on all the NSX-T Data Center hosts instead of configuring manually. If the transport node is already configured, then automated transport node creation is not applicable for that node. Follow the steps below to configure it. 1 - Select … Continue reading NSX-T 2.5: Configure a Managed Host Transport Node