Início > Virtualizacao / Virtual Machine > SCVMM R2 : Novo tipo de migracao : Quick Storage Migration

SCVMM R2 : Novo tipo de migracao : Quick Storage Migration

 

QSM Is One of Many Migration Technologies Supported in Virtual Machine Manager’s Portfolio

VM Migration Type

Platforms available on

Technology used for transfer

Expected downtime for VM

Live Migration

  • Hyper-V
    (2008 R2)
  • ESX 3.0, 3.5
  • Windows Server 2008 Failover Cluster
  • Hyper-V
  • vMotion for ESX

None

  • No service interruption while virtual machine is moved

Quick Migration

  • Hyper-V
  • Windows Server 2008 Failover Cluster
  • Hyper-V

Under 1 minute in most cases

  • VM is put into save-state while it is moved from one cluster node to another using the cluster failover mechanism

SAN Migration

  • Virtual Server
  • Hyper-V
  • Windows Server 2008 Hyper-V and Virtual Disk Service (VDS) Hardware Providers
  • N-Port Identification Virtualization (NPIV) on Emulex and QLogic Fibre Channel HBAs
  • iSCSI on EMC, HP, Hitachi, NetApp, EquiLogic arrays

Under 1 minute in most cases

  • VM is put into save-state while it is moved from one virtual machine host to another using unmasking and masking operations at the SAN level

Network based migration

(aka LAN migration)

  • Virtual Server
  • Hyper-V
  • ESX
  • BITS for Virtual Server and Hyper-V
  • sFTP for ESX

Minutes to hours (W2K8, W2K3 hosts)

  • VM needs to be stopped or in saved state for the entire duration of transfer

Under 1 minute in most cases (W2K8 R2)

  • VM can remain running for the almost entire duration of the transfer of its virtual disks from once storage location to another
  • VM is put into save-state for a brief interval to migrate its memory state and associated differencing disks.

Storage Migration Type

Platforms available on

Technology used for transfer

Expected downtime

Storage vMotion

  • ESX 3.5
  • Storage vMotion

None

  • No perceived service interruption while the virtual disks associated with a virtual machine are moved from storage location to another

Quick Storage Migration

  • Hyper-V
    (2008 R2)
  • BITS and Hyper-V

Under 1 minute in most cases (W2K8 R2)

  • VM can remain running for the almost the entire duration of the transfer of its virtual disks from once storage location to another
  • VM is put into save-state for a brief interval to migrate its memory state and associated differencing disks.

 

 

How QSM Compares To VMware Storage VMotion

 

VMM 2008 R2 + Windows Server 2008 R2 Hyper-V

VMware (vCenter 2.5 + ESX 3.5)

Migration of virtual machines across two hosts with independent storage

Supported

Not Supported

Migration of virtual machines with snapshots

Supported

Not Supported

Migration of Virtual machine with Virtual Disks

Supported

Supported (persistent mode)

Requires sufficient resources to support two instances of the virtual machines running concurrently

Not Required

Required

Additional Licensed Required

None

VMotion License

Number of concurrent storage Migrations allowed

10

4

Storage Migrations supported in the Administrator Console

Yes (QSM and Storage vMotion)

No

Storage Migrations supported in the CLI

Yes (QSM and Storage vMotion)

Yes

Protocol agnostic

Yes

Yes

Support for migrations of VMs and storage between hosts with different processors versions (same manufacturer)

Yes (use Hyper-V R2 Processor Compatibility Mode to increase the number of compatible hosts )

Not Applicable

 

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