03--Master plan for vsphere deployment systems

03--Master plan for vsphere deployment systems

Starting with this section, you'll build a more simple, yet comprehensive, vsphere 5.5 lab environment.

Because virtualization involves a number of technologies such as servers, storage, and networking, you need to design and plan your entire environment first.

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▲ Master plan network topology diagram

For the overall planning of this experiment network topology diagram, the following will be around the diagram, on the requirements of virtualization software, server selection, storage design, network design and other aspects of the elaboration.

I. ESXI 5.5 and vcenter installation requirements

The first thing to know about the official installation requirements for ESXi 5.5 and VCenter 5.5

ESXi5.5 is installed directly on the physical machine, the hardware requirements are as follows:

2 single-core CPUs or 1 or more multicore CPUs (CPU requires support for virtualization technology and can be turned on for this function);

Minimum 5GB disk space is required, 10GB is recommended (mainly for local log and Dump storage);

Memory is not less than 2GB.

Vcenter 5.5 (including vcenter Single Sign On, vcenter Inventory Service, vcenter serve and other software) is installed on the Windows Server operating system, the requirements for the system are as follows:

64-bit operating system for Windows Server 2008 or later;

Minimum recommended dual core, 2GB memory, 40GB HDD.

Second, Dell PowerEdge server

This case is based on the PowerEdge 12th generation server because the author often touches the Dell PowerEdge series servers and has a number of idle PowerEdge 12th generation servers on hand that can be churn. Here is a brief description of the Dell PowerEdge server products.

The PowerEdge family is a Dell enterprise-facing Rackmount server, and the mainstream users are small and midsize businesses. The series of products currently out to the 13th generation, in terms of cost-effective, favorite is the 1U PowerEdge R430 and 2U of the PowerEdge R730, these two are two-way server, you can connect two CPUs. In this case, the 12th generation of the PowerEdge R420 and the PowerEdge R720 (the 13th generation of the PowerEdge is difficult to misappropriate for long).

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▲intel Xeon e-Series CPU naming conventions

On the CPU side, for dual servers (such as r420/r430/r720/r730), the PowerEdge 12th generation products are generally tied to the Intel Xeon e5-2400 series processors, and the 13th generation is tied to the E5-2600 series servers. At present the r430/r730 server uses the relatively common CPU is the e5-2630 v3, the high configuration may choose e5-2680 v3. (See official information for Intel Xeon E-Series server processor naming)

In terms of memory, the R420/R430 has 12 DIMM slots, supports up to (12*32GB) 384GB of memory, and the r720/r730 has 24 DIMM slots with up to 768GB memory support (24*32GB). The PowerEdge 12th generation (r420/r720) supports DDR3 memory (11th generation), while in the PowerEdge 13th generation (e.g. r430/r730), the next generation of DDR4 memory is supported.

For hard drives, the r420/r430 can support 4 3.5-inch or 8 2.5-inch SATA, SAS, SSD drives, and r720/r730 can provide 8 3.5-inch or 16 2.5-inch dials. 3.5-inch hard drives are still common in the PowerEdge 12th generation, but with the development of hard drive technology, 3.5-inch hard drives are being phased out of the market, and in the PowerEdge 13th generation, Dell generally recommends using a 2.5-inch dial and hard drive- The current mainstream 300G, 600G SAS hard drives are 2.5-inch, 1T or more SATA, SAS hard drive, still 3.5 inches.

In actual use, R430 is used as less virtualization, R730 is more, but in a large-scale virtualized environment, four-way R820 servers are recommended as virtualization hosts (no R830 in the PowerEdge 13th generation), This allows for more CPU resources and memory resources on a single node. Of course, the premise is to purchase the appropriate vsphere license.

Third, server planning

In the experimental environment, three PowerEdge R720 servers and two Dell PowerEdge R420 were used, the first of which were used as ESXi hosts, and the latter for data backup (VDP, also ESXi host) and iSCSI soft Storage (CentOS iSCSI virtual hard disk) host.

The 3 R720 (ESXI-MGT, esxi01, esxi02) configurations for the Exsi compute node host are identical, as follows:

Processor	Memory	Hard disk	Card
2*xeon e5-2630 v2 2.60GHz, 6 Core	4*8GB RDIMM, 1333MHz	3*300GB, 15K RPM, SAS, 12Gbps (Do RAID 5)	Quad Port Gigabit Network adapter

Other: Integrated perc H710 mini array card, IDRAC Enterprise Edition remote management card, dual power supply.

In this case, iSCSI storage is used, directly with an Ethernet gigabit port, and no FC HBA or SAS HBA interface card or fiber module is used.

The 3 compute node hosts, functions, System configuration and virtual machine information are as follows:

Host Name	Function	Operating system	IP Address	The included virtual machines
Esxi-mgt	Stand-alone local storage host for control center	ESXi 5.5 U2 Dell Fixed Plate	Server ip:10.1.241.20 Backup ip:10.1.243.20	SQDC01, Sqvcenter
Esxi01	One of the compute nodes, Join the cluster ha-rack20	ESXi 5.5 U2 Dell Fixed Plate	Server ip:10.1.241.21 VMotion ip:10.1.242.21 Backup ip:10.1..243.21 ISCSI ip:10.1.244.21	VM1, Vm3 ...
Esxi02	One of the compute nodes, Join the cluster ha-rack20	ESXi 5.5 U2 Dell Fixed Plate	Server ip:10.1.241.22 VMotion ip:10.1.242.22 Backup ip:10.1..243.22 ISCSI ip:10.1.244.22	VM2, Vm4 ...

Note: The Idrac remote management card is useful, but it is not related to the experimental content, its IP is not listed.

In practice, the common practice is that vcenter is installed in a virtual machine on the ESXi host, which in turn manages its host. In this case, the host hosting the Vcenter is independent of the cluster because of the experiment.

The host where Vcenter resides and the host on which the domain is located is the virtual machine under the same ESXI-MGT physical host, the two virtual machines configured as follows:

Host Name	Function	Operating system	IP Address	Installed components/software
Sqdc01	Domain Control server	Windows Server R2 SP1	10.1.241.11	AD, DNS, DHCP
Sqvcenter	Vsphere Admin Center, database	Windows Server R2 SP1	10.1.241.13	VCenter 5.5, SQL Server R2 Ent

Note: Virtual machine disk space capacity is 50GB (only one C drive)

This case reserved IP 10.1.241.12 for additional domain control. In the real world, for data security, be sure to build at least one additional domain control. DHCP is optional, but needs to be used in Desktop virtualization view (this is another experiment).

Iv. Storage Planning

The storage of virtualized environments is divided into two main types: local storage and centralized storage.

Local storage: The hard disk in the server or the hard drive array directly connected to the server.

Centralized storage: Also known as shared storage, is stored outside the server, ESXi supports NAS, ISCSI (IP-based SAN), FC (FC-based Sans), and other protocols.

In this case, the centralized storage is using iSCSI networked storage. Where iSCSI target is provided by the CentOS operating system on a single physical host.

This case uses a R420 as the storage server, configured as follows:

Processor	Memory	Hard disk	Card
2*xeon e5-2407 2.20GHz, 4 Core	4*8GB RDIMM, 1333MHz	3*300GB, 15K RPM, SAS, 12Gbps (Do RAID 5)	Dual-port Gigabit network adapter

Other: Integrated perc H310 mini array card, IDRAC Remote Management Card Enterprise Edition, dual power supply.

The functions, system configuration and software information of the server are as follows:

Host Name	Function	Operating system	IP Address	Installed software
sqst01	Provides iSCSI Target, Analog storage devices	CentOS Release 6.5 (Final)	10.1.244.1	Scsi-target-utils

Note: It is also convenient to use Windwos Server R2 to build iSCSI. Also recommended Openfiler.

V. Disaster Preparedness Planning

In the vsphere 5.1/5.5 release, VMware offers a product called vsphere Data Protection (VDP), which provides a disk-based backup and recovery solution for vsphere virtual machines. VDP is integrated with vcenter server for efficient, centralized management of backup jobs.

Although VDP is not popular in large-scale environments due to the fixed, non-free expansion of backup space, and some other capabilities, it is highly recommended for beginners, which is a good software for learning virtual machine backup and recovery. This software is used in this case.

The officially provided VDP is a pre-configured virtual machine (installed with the Linux system, VSphere Data protection software), and the user downloads a module with the suffix OVA, which needs to be imported into an ESXi host via the "Deploy OVF module".

VDP has 3 backup storage capacity configurations to choose from: 0.5TB, 1TB, and 2TB, which occupy the actual storage capacity of 850GB, 1300GB, and 3100GB, respectively. Requires a physical host with an ESXi operating system with a large hard disk capacity.

This case uses a R420 as the vsphere host server, configured as follows:

Processor	Memory	Hard disk	Card
2*xeon e5-2407 2.20GHz, 4 Core	4*8GB RDIMM, 1333MHz	3*2TGB, 7.5K RPM, SATA, 6Gbps, (Do RAID 5)	Dual-port Gigabit network adapter

Other: Integrated perc H310 mini array card, IDRAC Remote Management Card Enterprise Edition, dual power supply.

The functions, System configuration and virtual machine information for this server are as follows:

Host Name	Function	Operating system	IP Address	The included virtual machines
Esxi-bk	Standalone local storage host for use as a host for VDP virtual machines	ESXi 5.5 U2 Dell Fixed Plate	Server ip:10.1.243.1	Sqvdp

Note: It is also convenient to use Windwos Server R2 to build iSCSI. Also recommended Openfiler.

The VDP virtual machine is configured as follows (import an OVA template, install a simple configuration, and other configurations are pre-installed and default):

Host Name	Function	Operating system	IP Address	Installed software
Sqvdp	VDP Server	Pre-installed Linux systems	10.1.243.10	Pre-installed VDP

VI. Network Planning

The planning of the network is related to whether the whole virtualization system can operate normally. In a large and perfect virtualized environment, network design is very complex, generally requires the server to have 8 network ports.

The purpose of this case is to realize vsphere's basic functions of vswitch Setup, vMotion, storage, backup and recovery, and the overall network design is simple, regardless of network link redundancy, storage multipath implementation and so on. Also, all network requirements are implemented via Gigabit Ethernet.

The overall network topology diagram, as shown in.

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▲ Master Plan network topology diagram (pictured at the beginning of this article)

The network topology diagram illustrates the following:

1. Server equipment as stated above. The access layer switch is the H3C S5048pv2-ei of the third.

2, the network uses the VLAN 240–vlan 2,445 network segment, in the figure respectively with five color line marking, each VLAN exchanges.

Management network, each server Idrac remote management card and switch management port connected to the vlan240, in this case series of articles, this is ignored;

The server network, which is the network used by the EXSI host and its virtualization;

Vmotion network, which is the network used for virtual machine migration;

Backup network is the network used to back up and restore the virtual machine with VDP;

iSCSI network, which is the network used by ESXi hosts to connect to iSCSI storage.

3. The light blue frame represents the virtual machine.

This article is from the "One Tree Qing Jin" blog, please be sure to keep this source http://sunshyfangtian.blog.51cto.com/1405751/1785298

03--Master plan for vsphere deployment systems