Fun with nested ESXi
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This document discusses building a "home cloud" by running virtual ESXi servers on a single physical server. It provides requirements, design details, and step-by-step installation instructions. The goal is to execute VMotion and high availability functions by creating a vCenter-managed cluster of two virtual ESXi servers on one physical server with shared storage. While an affordable option, the document notes the noisy physical server is not ideal. Overall it presents a method for virtually replicating public cloud infrastructure on a small scale for learning and testing purposes.
Fun with nested ESXi
- 1. 上海 会＠ 学习 Fun with “nested ESXi” - How to build “cloud” in your home - March 24,2013 Kenzo.Nagahisa@gmail.com
- 2. 0.Introduction(1) • Self introduction • name: Kenzo Nagahisa( 永久健三 ) • job: SoftBank Telecom China( 软银通信科技 ) • work for: Cloud Service Provider( 云计算 ) • e-mail: kenzo.nagahisa@gmail.com
- 3. 0.Introduction(2) • Terminology(Not accurate :p) HV Hyper Visor VM Virtual Machine Famous “Virtualization” American company. VMware Consumer Products: VMware Player/Fusion HV provided by VMware. ESXi (1) Free version -stand alone- (2) Paid version - can be controlled by vCenter vCenter Server to control multiple ESXis Set of ESXis controlled by vCenter Cluster HA function is configured on each Cluster. To move VM from one ESXi to another ESXi. vMotion i.e. use for ESXi hardware maintenance High Availability. Automatic VM restart on the HA other ESXi in case of ESXi failure.
- 4. 1.Today’s topic • Let’s have fun with creating “home cloud”. • AWS/VMware Player is very cheap and useful but let's try & feel “physical cloud” at home. • But we have NO MONEY... have only one server;) • Keep in your mind we live in “Virtualization” IT world. • Can we use virtual ESXi ? YES, WE CAN! • “nested ESXi” means “ESXi(VM) on ESXi(HV)”. • We can use vCenter to control “ESXi”s on ESXi.
- 5. 2.Requirements(1) • Hardware • At least one x86 server. • CPU is key(VT-x:mandatory. EPT:optional). • Sufficient Memory • My case: Dell PowerEdge1950(2nd hand) • Storage for HA • NFS or iSCSI • My case: QNAP TS-119P II + Sata disk
- 6. 2.Requirements(2) • Software • Get VMware account(free) and download: • Standalone ESXi HV(free) • vSphere 5.1 Evaluation(60 days) • vCenter Evaluation Appliance(60 days) • Client OS media for test • Linux, Windows
- 7. 3.Design(1) • Image RDP,ssh Physical Server vCenter ESXi ESXi Storage
- 8. 3.Design(2) • Goal: to execute VMotion & HA RDP,ssh Physical Server vCenter ESXi ESXi Storage
- 9. 3.Design(3) RDP/ssh Client • Diagram 192.168.1.100 192.168.2.201 192.168.2.202 StorageNetwork SW vCenter-1 esxi510-1 esxi510-2 192.168.1.210 192.168.1.201 192.168.1.202 Mgmt Network SW 192.168.2.251 192.168.2.252 192.168.1.252 Storage X86 Server
- 10. 4.Installation(1) • Points • ESXi(VM)’s Machine Type: 9 (vmx-09) • vhv.enable = TRUE (in case of EPT enabled) • NWs on ESXi(HV) set to “promiscuous” mode • Dedicated NW for vMotion • Multiple management NWs for HA • vCenter Appliance: vmware/vmware
- 11. 4.Installation(2) Only 32bit VM
- 14. 4.Installation(5) • NWs on HV
- 15. 4.Installation(6) • 3VMs=2ESXis & vCenter
- 16. 4.Installation(7) • vCenter Appliance
- 18. 5.Home cloud?
- 19. 6.At the end • Cheap server is very noisy. not recommended :( • CPU w/ EPT allows “VHV”(Virtualized HV) Hyper-V on ESXi ? • Mac mini maybe work as “nested ESXi” Enjoy!