Microsoft
Virtual
Academy
Part 1 | Windows Server 2012 Hyper-V &.
VMware vSphere 5.1
(01) Introduction & Scalability
Part 2 | System Center 2012 SP1 &
VMware’s Private Cloud
(05) Introduction & Overview of
System Center 2012
(02) Storage & Resource Management
(06) Application Management
(03) Security, Multi-tenancy & Flexibility
(07) Cross-Platform Management
(04) High-Availability & Resiliency
(08) Foundation, Hybrid Clouds & Costs
** MEAL BREAK **
Microsoft
Virtual
Academy

SCALE AND
PERFORMANCE
Access Fibre Channel SAN
data from a virtual machine
Hyper-V host 1
Hyper-V host 2
• Unmediated access to a storage area
network (SAN)
• Hardware-based I/O path to virtual hard
disk stack
Worldwide
Name Set A
Worldwide
Name Set B
Worldwide
Name Set A
Worldwide
Name Set B
• N_Port ID Virtualization (NPIV) support
• Single Hyper-V host connected to different
SANs
• Up to four Virtual Fibre Channel adapters
on a virtual machine
• Multipath I/O (MPIO) functionality
• Live migration
Live migration maintaining
Fibre Channel connectivity
SCALE AND
PERFORMANCE
Capabilities
• Improved performance of virtual hard disks
on 512e disks
• Ability to host virtual hard disks on native
4 KB disks
Logical sector
0
1
2
3
4
Physical sector 0
5
6
7
8
9
10
11
12
13
14
15
Physical sector 1
Sector bitmap
Benefits
• Reduces impact of 512e disks on virtual
hard disk stack
• Workloads complete more quickly
Virtual hard disk 4 KB block (blue) not
aligned with physical 4 KB boundary
9
SCALE AND
PERFORMANCE
VHDX
Features
• Storage capacity up to 64 TBs
• Corruption protection during power failures
• Optimal structure alignment for large-sector
disks
Benefits
• Increases storage capacity
• Protects data
• Helps to ensure quality performance on
large-sector disks
Large allocations
and 1 MB aligned
Intent log
Header region
Data region (large allocations and 1 MB aligned)
Block Allocation
Table (BAT)
User data blocks
Sector bitmap blocks
Metadata region (small allocations and unaligned)
User metadata
Header
Metadata table
File metadata
ENTERPRISE-CLASS
FEATURES ON LESS
EXPENSIVE HARDWARE
Windows Application Server or File Server
Storage Pools and Storage
Spaces
Physical or
virtualized
deployments
Integrated
with other
Windows
Server 2012
capabilities
Windows
Virtualized
Storage
• Virtualization of storage with
• Storage resilience and
File Server Administration
Console
Hyper-V
Failover Clustering
NTFS
SMB Direct
Cluster Shared Volume
NFS
Windows Storage Mgmt.
SMB Multichannel
availability with commodity
hardware
• Resiliency and data
redundancy through
n-way mirroring (clustered or
unclustered) or parity mode
(unclustered)
• Utilization optimized through
Storage Space
Storage Space
Storage Space
thin and trim provisioning
and enclosure awareness
• Integration with other
Storage Pool
Storage Pool
Windows Server 2012
capabilities
• Serial Attached SCSI (SAS)
and Serial AT Attachment
(SATA) interconnects
Physical
Storage
(Shared) SAS or SATA
1
IMPROVED
PERFORMANCE,
MORE CHOICE
Offloaded Data Transfer (ODX)
Token-based data transfer between
intelligent storage arrays
Benefits
• Rapid virtual machine provisioning and
migration
• Faster transfers on large files
• Minimized latency
• Maximized array throughput
• Less CPU and network use
• Performance not limited by network
throughput or server use
• Improved datacenter capacity and scale
External Intelligent Storage Array
Token
Virtual Disk
Virtual Disk
1
Creation of a 10 GB Fixed Disk
200
180
~3 Minutes
160
140
120
100
Time (seconds)
80
60
<1 Second!
40
20
0
Average Desktop
ODX
Hyper-V
(2012)
vSphere
Hypervisor
vSphere 5.1
Enterprise Plus
Virtual Fiber Channel
Yes
Yes
Yes
3rd Party Multipathing (MPIO)
Yes
No
Yes (VAMP)1
Native 4-KB Disk Support
Yes
No
No
Maximum Virtual Disk Size
64TB VHDX
2TB VMDK
2TB VMDK
256TB+2
64TB
64TB
Offloaded Data Transfer
Yes
No
Yes (VAAI)3
Boot from USB Disk
Yes4
Yes
Yes
Storage Pooling
Yes
No
No
Capability
Maximum Pass Through Disk Size
vStorage API for Multipathing (VAMP) is only available in Enterprise & Enterprise Plus editions of vSphere 5.1
maximum size of a physical disk attached to a virtual machine is determined by the guest operating system and
the chosen file system within the guest. More recent Windows Server operating systems support disks in excess of
256TB in size
3 vStorage API for Array Integration (VAAI) is only available in Enterprise & Enterprise Plus editions of vSphere 5.1
4 Hyper-V Server 2012 Only
1
2 The
vSphere Hypervisor / vSphere 5.x Ent+ Information: http://www.vmware.com/pdf/vsphere5/r51/vsphere-51-configuration-maximums.pdf and
http://www.vmware.com/products/vsphere/buy/editions_comparison.html
CONTINUOUS
SERVICES
Improvements for Hyper-V
Dynamic Memory
• Introduced in Windows Server 2008 R2 SP1
• Reallocates memory automatically among
running virtual machines
Maximum
memory
Maximum
memory
Memory in use
Memory in use
Minimum
memory
Administrator can
increase maximum
memory without a
restart
VM1
Windows Server 2012
improvements
• Minimum memory
• Hyper-V smart paging
• Memory ballooning
• Runtime configuration
Hyper-V
Physical
memory
pool
CONTINUOUS
SERVICES
Improvements for Hyper-V
Maximum
memory
Maximum
memory
Benefits
• Higher consolidation numbers
Minimum
memory
Minimum
memory
Maximum
memory
Minimum
memory
• Improved reliability of Hyper-V operations
• Ability to increase maximum memory
configuration with minimal downtime
VM1
VM2
Hyper-V
VMn
Paging file provides
Memory reclaimed
additional memory
after startup
for startup
Physical
memory
pool
Removing
Virtual machine
paged memory
starting with
after
virtual
Hyper-V
machine
smart restart
paging
Startup increases
memory in use
Memory in use
after startup
ISOLATION AND
MULTITENANCY
Features
• Uses resource pools
• Compatible with all Hyper-V
operations
• Unaffected by virtual machine
movement
• Uses Network Metering Port
ACLs
Benefits of
Resource Metering
• Easier to track virtual machine
use
• Can be used to aggregate
data for multiple virtual
machines
• Can be used to build accurate
lookback and chargeback
solutions
• Easier to obtain resource use
data
10
15
25
20
5
30
0
Metrics
Average CPU use
Average memory use
Resource Pool Internet
Resource Metering
55
50
45
40
35
30
25
20
15
10
05
Resource Pool
Internet
Customer 2
Resource Pool
Internet
Customer 1
Minimum memory use
Maximum memory use
Maximum disk allocation
Incoming network traffic
Outgoing network traffic
20
45
30
0
Virtual Machine
Resource Metering
25
10
40
0
A two-tenant environment built with
Hyper-V in Windows Server 2012
CONTINUOUS
SERVICES
Features and mechanisms
Features
• Establishes a bandwidth floor
• Assigns specified bandwidth for each type
of traffic
• Helps to ensure fair sharing during
congestion
• Can exceed quota with no congestion
Two mechanisms
• Enhanced packet scheduler (software)
• Network adapter with DCB support
(hardware)
Relative minimum
bandwidth
Normal
priority
W=1
High
priority
W=2
Strict minimum
bandwidth
Bronze
tenant
Critical
W=5
Silver
tenant
100 MB
Hyper-V Extensible Switch
Gold
tenant
200 MB
Hyper-V Extensible Switch
1 Gbps
Bandwidth
oversubscription
500 MB
Gold
tenant
Gold
tenant
500 MB
Gold
tenant
500 MB
500 MB
Hyper-V Extensible Switch
NIC Teaming
1 Gbps
1 Gbps
Hyper-V
(2012)
vSphere
Hypervisor
vSphere 5.1
Enterprise Plus
Dynamic Memory
Yes
Yes
Yes
Resource Metering
Yes
Yes1
Yes
Quality of Service
Yes
No
Yes2
Data Center Bridging (DCB)
Yes
Yes
Yes
Capability
1 Without
2 Quality
vCenter, Resource Metering in the vSphere Hypervisor is only available on an individual host by host basis.
of Service (QoS) is only available in the Enterprise Plus edition of vSphere 5.1
vSphere Hypervisor / vSphere 5.x Ent+ Information: http://www.vmware.com/pdf/vsphere5/r51/vsphere-51-configuration-maximums.pdf and
http://www.vmware.com/products/vsphere/buy/editions_comparison.html
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