Wednesday 29 January 2014

RHEV COMPARISON WITH VSPHERE 5.5 AND HYPER-V

RED HAT ENTERPRISE VIRTUALIZATION COMPARISON WITH VMWARE VSPHERE 5.5 AND MICROSOFT HYPER-V 2012
FEATURES
RED HAT ENTERPRISE VIRTUALIZATION
VMWARE VSPHERE 5.5
MICROSOFT HYPER-V 2012
HYPERVISOR
Bare-metal hypervisor can be installed directly on the server hardware without a full operating system.
Y
Y
Y
Small footprint of <200MB
Y
Y
N
Guest device drivers are optimized for virtualization, resulting in high performance network and disk operations.
Y
Y
Y
Red Hat
Enterprise Linux guests require installation of the Linux integration services.
Certified on all hardware certified for Red Hat Enterprise Linux, including the latest Intel Xeon and AMD Opteron chipsets
Y
Y
Y
SCALABILITY LIMITS
Per  Cluster



Cluster
200
32
64
Per Host



Max cores per host
160
160
160
Max Ram per host
3TB/host
4TB/host
4TB/host
Max virtual CPUs per host
No limit
4096
2048
Per virtual machine (VM)



Max vCPUs per VM
160 vCPU/vm
32 vCPU with standard or Enterprise Edition

64 vCPU with Enterprise Plus Edition
64 vCPUs/VM for Win 2012, Win 2008, and Win 7

32 vCPUs/VM for Linux requires the installation of the new Linux integration services
Max vRAM per VM
2TB/VM
1TB/VM
1TB/VM
GUEST OS SUPPORT
Guest OS Support
Windows Server 2003, 2008, 2010, 2012, Windows XP, 7 and 8 (32bit and 64bit)

Red Hat Enterprise Linux 3, 4, 5, 6 (x86 and x64)

Vendor support for SUSE Linux Enterprise Server 10, 11

Other OS are known to work and are community supported
Windows, Linux, UNIX (x86 and x64)

Windows XP, Vista, 7 and 8
Windows 2003, 2008, 2012 (certain SPs only) Windows XP, Vista, 7, and 8

SLES

Red Hat Enterprise Linux 5+, 6+ (certain releases only)

MEMORY MANAGEMENT
Memory overcommitment: Allows the allocation of more virtual memory to its VMs than the host has physical memory
Y
Y
Y
dynamic memory only available with some Microsoft operating systems
Memory page  sharing: Enables VMs with similar operating systems to share physical memory
Y
Y
N
Transparent huge  pages: Large  memory pages can be dynamically created for VMs that require them
Y
Y
N
MANAGEMENT FEATURES
High Availability



VM restart in case of host failure
Y
Y
Y
Restart order can be prioritized, allowing the most critical  VMs to be restarted first
Y
Y
Y
No single point of failure  for high availability
Y
Y
Y
Maintenance mode:  Guest VMs of hosts undergoing maintenance are  automatically migrated to other available hosts
Y
Y
Y
High availability for enterprise management module:  Automatic fail over  to stand-by management server in the event of a primary server failure
Y
Y
Y
MIGRATION



VM live migration
Y
Y
Y
Storage live migration
Y
Y
Requires Enterprise or Enterprise Plus
Y
WORKLOAD AND RESOURCE MANAGEMENT
System scheduler: Cluster policies  automatically distribute workload evenly  across cluster host servers
Y
Y
requires Enterprise or Enterprise Plus
Y
Power saver: During off-peak hours, concentrates VMs on fewer  hosts to save  power
Y
Y
requires Enterprise or Enterprise Plus
Y
Storage load balancing: Automatically balance storage I/O and storage capacity
Y
Y
requires Enterprise Plus
Y
Shared resource pools: CPU, memory, and storage resources are aggregated and managed at the cluster level.
Y
Y
Y
Hot add VM NICs, Disk: Add networks and disk storage to running VMs
Y
Y
requires Enterprise or Enterprise Plus
Y
Hot add VM vCPUs and RAM: Add more vCPUs and RAM to running VM (guest operating system and application must support feature)
N
Y
requires Enterprise or Enterprise Plus
N
IMAGE MANAGEMENT
Thin provisioning: Virtual disks don’t use all of their allowed space upon creation.
Y
Y
Y
Templates: VMs can be deployed from master installations.
Y
Y
Y
VM snapshots: Roll back patches and upgrades
Y
Y
Y
Live VM snapshots: Snapshot a running VM
Y
Y
Y
Import/export VMs in the standard OVF format
Y
Y
Y
VM conversion: Includes tools to convert VMs from other formats to native format
Y
Y
Y
VM backup:  Certified third-party solutions are available for backing up virtual servers (for both data and operating system backup).
Y
Y
Y
SYSTEM ADMINISTRATION AND CONTROL
Single view for centralized control
Y
Y
N
requires multiple management tools
Host and VM system monitoring and management
Y
Y
Y
Self service user portal: Provides administrative access to users for creating/running VMs and managing the environment
Y
N
requires purchase of VMware Lab Manager deprecated or vCloud Director with Enterprise Plus
Y
limited capability through SC2012 App Controller
Roles and permissions: Granular, inheritable, directory-based security roles  for all actions and objects
Y
Y
N
requires Authorization Manager
Identity management: User authentication domains supported
Y
choice  of Active directory, IPA, Red Hat Directory Services, or IBM Tivoli Directory Server
Y
Y
AD only
Remote console: Red Hat Enterprise Virtualization Manager includes access to VMs using a secure graphical console
Y
Y
Y
Remote network boot via PXE (Preboot Execution Environment)
Y
Y
Y
REPORTING AND MONITORING
Provides customizable reporting for historic usage, trending, and quality of service
Y
N
Requires vCenter CapacityIQ
Y
LIMITED
Alerts and notifications: Errors and warnings are immediately reported to administrators via email
Y
Y
Y
Logging: Supports remote logging and crash analysis
Y
Y
Y
Guest agents: Enables monitoring of VM health and status
Y
Y
Y
INTEGRATION, AUTOMATION, AND CUSTOMIZATION
API: Programmatic access to all management commands
Y
all open
N
some proprietary/closed, some open
N
some proprietary/closed, some open
Scripting and automation of management commands
Y
Linux Python-based CLI
Y
Powershell-based CLI
Y
Powershell-based CLI
Hooks: Used to run system commands or to execute scripts that modify VM operation
Y
Y
LIMITED
N
SECURITY
Kernel level: Includes SELinux and sVirt for an effective intrusion detection, isolation, and containment
Y
N
application layer security with add-on vShield products
N
application layer security
Small hypervisor footprint minimizes attack surface
Y
Y
Y
NETWORKING
Device support: All network hardware and interfaces are certified for Red Hat Enterprise Linux
Y
Y
Y
vLANs: Support for virtual LANs are inside the virtual infrastructure
Y
Y
Hyper-V Network Virtualization
Support for OpenStack Neutron networking
Y
Supports OpenvSwitch and Linux Bridge 2
N
Only supports VMware NSX 3
Y
Supports OpenvSwitch 4
Network offload: Offloads virtual networking and network I/O to compatible NIC hardware
Y
Y
Y
Supports jumbo frames
Y
Y
Y
STORAGE
Supports iSCSI, FC, and NFS shared storage infrastructure
Y
Y
Y
Includes native support for Red Hat Storage Server, including a built-in GlusterFS Storage domain and datacenter type that use Gluster as the storage back-end
Y
N
N
Storage multipathing: Redundant path to storage for fault tolerance and enhanced performance
Y
Y
Y
Local disk support
Y
Y
Y
Supports storage domains backed by POSIX-compliant file systems
Y
Y
Y
Shared disks: Includes disks that are shared by multiple VMs at the same time
Y
Y
Y
Direct LUN support: Provides the ability to directly attach any block device to a VM as a disk
Y
Y
Y

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