The differences between NFS and iSCSI http://lass.cs.umass.edu/papers/pdf/FAST04.pdf How to configure NFS &nb..
Archives : September-2015
vSphere Product Breakdown by Edition Additional Products vCenter Operations Manager Monitors trends and looks for risks Works with vCenter server to gather and consolidate performance statistics into “SuperMetrics” SuperMetrics organized into categories: Health, Risk, and Efficiency Health: Immediate issues that need to be resolved or investigated Risk: Issues that will affect capacity or performance in ..
VMs take advantage of Virtual Networking. So do ESXi hosts and vCenter. This allows multiple VMs to share a single network card. Virtual Machines must have proper addresses and protocols Use Virtual Switches to attach VMs to the physical network, or Create isolated networks to use during testing and development Provides same flexibility that server ..
Shared Storage Multiple computers access data on the same storage device In the virtual world, shared storage means VMs Most vCenter features require this. vCenter features that REQUIRE shared storage DRS DPM Storage DRS High Availability Fault Tolerance Shared Storage Supported Formats Fibre Channel Fibre Channel over Ethernet (FCoE) iSCSI NFS Local Storage Fibre Channel ..
vMotion vMotion is a migration process vMotion allows you to migrate a running VM from one ESXi host to another. Can be used to load balance ESXi hosts in a cluster by moving VMs to a host with more available resources. Allows you to perform hardware adjustments by moving all VMs to another host How ..
Hypervisor Provides VMs with their virtual hardware Provides appropriate share of physical resources (CPU, HDD, RAM, Bandwidth) as defined. Performance is determined by the resources allocated to the VM. Type 1: “Bare Metal” Hypervisors Typically used for Data Center Virtualization due to less dependence on an OS and is more efficient because performs both rolls ..
Objectives Discuss features of VMware vSphere Provide overview of challenges vSphere is intended to resolve What is a Virtual Machine Virtual machines look and feel like dedicated servers Hardware is just software: Allows you to replace and upgrade hardware on the fly Add new hardware devices without reboots What can a VM do? Host any ..
VMware Training Links https://mylearn.vmware.com/mgrCourse/launchCourse.cfm?id_registrant=17568200&id_host=175&id_course=189018&ui=www_edu&rGUID=df3d95d2-e04f-4339-9399-0efed856cca0&uGUID=9936fa59-282f-4d88-91ab-7b836dd91812 http://vmware-esxi.com/vcenter-server/ What is Data Center Virtualization “The conversion of Hardware Devices into Software Resources” Problems with Multiple Servers Multiple Servers are required when there are several applications, often needing different OS or need to be segragated from other systems for security. Each Server consumes power. Each Server dissipates heat. Virtualization breaks ..
What is DHCP Dynamic Host Configuration Protocol. Automatically assigns IP addresses to connected hosts Usually assigned for a limited time or as long as actively using it. Can be “Manually Allocated” by MAC Address, so same MAC will always get the same IP. DHCP Servers can be server-based or router based. Router based more reliable, ..
What is SDM? Security Device Manager A Graphic User Interface (GUI) that you can use to configure and manage your router Web Based (Java Required) Works on all mainline Cisco routers Designed to allow IOS Config without extensive knowledge Download from http://www.cisco.com/go/sdm Can be installed on your PC (Faster, works on all Cisco routers) Can ..
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