Role enhancements Flashcards
Hyper V
you can use it alone or with VDI (Virtual Desktop Infrastructure)
Hyper V Improvements in 2008 R2
Live migration of Vm and clustered shared volumes - done without causing disruption in network traffic when moved from one cluster to another - can only move one vm at a time and must have configured failover clustering role on the HyperV servers or CSV (cluster shared volumes)
Support for networking - Jumbo Frames (reduced cpu usage 9014 bytes per frame)
TCP Chimney - allows TCPIP processing tasks to be offloaded to network hardware, ie: server role that has to transfer large amounts of data
VM Queue - VMQ helps to increase/decrease input and output performance.NICs to place pkt directly into the memory of vm without involving the cpu by using Direct Memory Access (DMA)
support for logical processors - up to 32, 2nd level address translation or SLAT and improves performance - uses less cpu and hypervisor cpu time. Hyper v uses CPU core parking - unused ones go to sleep until needed
support for dynamic virtual machine storage - to hot swap hdd, etc you have to have hyper V Integration Services on the guest o/s.
Fail over clusters need to meet :
processor - must have the same from the same manufacturer - can’t go pentium to amd platform.
TCP/IP subnet config - have to be on the same one
shared storage - all nodes have to have access to the SAN or iSCSI based devices
recursive
that any new modifications are tracked on the source machine and transferred to the destination virtual machine until the process is complete, paused briefly to do the final transfer, processor register, device state,hdd and pass-through disks are transferred to the destination node.
need at least 1 gb of transfer speed between nodes for it to work without disruption
LUN
Logical Unit Number
can take time to transfer. Use CSV to by pass this issue
to manage hyper V VMs use:
Hyper V manager console
HyperV Manager Pane
Virtual Machine Pane -vm, snapshots, details
Actions Pane
Powershell
Hyper Vs windows mgmt instrumentation:
WMI locally and remotely
Powershell Mgmt Library for Hyper V: cmdlets for vm mgmt
System Center Virtual Machine Manager - new version in 2008 R2 SCVMM - single console to manage physical and vm
live migration
adding mv storage while vm is running
SAN migration and in and out of clusters
CSV to run multiple VM per LUN
Using Powershell for Hyper V can do:
- creating and deleting vm
- finding vm and hosts
- connecting to vm
- starting, stopping and suspending vm
- taking snapshots of vm, backup and exporting
- working with disk controllers, disk images and drives
- configuring the network connections of vm
default new vm
512 mb memory
hdd 127 gigs of storage capacity
not connected to network or scsi and has no os
Remote Desktop Services enables you to
- deploy programs from a central location
- deploy & maintain software in an enterprise
- Configure RD services to use with HyperV
- Asign VM to users if you set RD services to use Hyper V
- Maintain and upgrade programs more easily because they are installed centrally
- maintain and upgrade programs more easily because they’re installed centrally on a Remote Desktop Session Host Server
Key features of RDS are
rich experience for remote users RD connection Broker Remote App and Desktop Connections RemoteApp and Desktop Web Access RD Gateway RD Easy Print
RD Session Host
easy deployment of programs across enterprise
ability of users to access programs on a central server from different client machines and devices
better performance of programs
install through server manager roles and will need to restart after the install
RD Virtualization Host
can be assigned to a user through AD DS. Changes user makes will be saved and maintained.
Virtual desktop pools - identically configure multiple machines that allows for standards. doesn’t save changes
to manage remoteapp programs and vm desktops
you have to install RD Connection Broker Role on server 2008 R2
if you have it installed on mutliple machines RD connection broker will combine remote app sources
VDI benefits
flexibility for staff
data security and compliance
easier and more efficient mgmt of os and apps
commonly used for:
enterprise desktop consolidation
remtoe developer support
Sequence of Direct Access process
- Direct Access client connnects to a Direct Access server
- The client uses security protocols to negotiate access to the network
- The client and server authenticate each other and form an IPsec tunnel
- If the intranet uses NAP the client obtains a health cert from an HRA
- The client establishes a second IPsec tunnel at user logon
- The DirectAccess server authorizes the client to access intranet resources