101 cd 1415-1445

1 © Copyright 2012 EMC Corporation. All rights reserved.


VPLEX 雙中心雙活的跨雲解決方案

唐光豫 (Michael Tang) 資深技術經理 EMC Taiwan


重點內容

• VPLEX 架構與系統功能介紹

• VPLEX 雙活架構與高可用性說明

• 最高等級的資訊保護 : 雙活中心 + 持續性資料保護

• Q&A


Mobility. Availability. Collaboration.

VPLEX 1st site Within A Data Center

VPLEX Metro Across Data Centers

Synchronous Distances

RecoverPoint Operational And 3rd

Site Recovery

VPLEX 2nd site Within B Data Center

EMC 雙中心雙活的跨雲解決方案

Active Active

DA

DR


VPLEX 叢集式架構

• 1/2/4 I/O Engines To Scale Performance

• Redundant Power Feeds

• Redundant Battery Backup

• Redundant Fibre-Channel Switches For Internal Communication (Dual/Quad)

• Management Server And Cabling

• Non-Disruptive Forever

single dual quad


Engine (Director A/B)

VPLEX 控制引擎介紹

Arrays Hosts

WAN COM Cluster COM

Engine COM

CPU Cores

Cache

Standard EMC Hardware

• Field-Replaceable Components

Two Directors Per Engine, Each With: • Front-End Host (8Gb/s FC) • Back-End Array (8Gb/s FC) • Intel Multi-Core CPU • Large User Data Cache • Inter-Cluster COM (8Gb/s FC or 2x 10GigE) • Intra-Cluster COM (8Gb/s FC) • Intra-Engine COM (Gen2 PCIe)


VPLEX 虛擬邏輯磁區介紹

Back End (BE)

Device Virtualization

C O M

Front End (FE)

• Storage Volumes Represent Physical Devices Claimed From Back-End Arrays. Array I/O And Multi-Pathing Is Done Here.

• Virtual Volumes Are Composed Of Storage Volumes. Local And Distributed Mirroring Is Done Here.

• Virtual Volume Data Is Cached And Kept Consistent And Coherent Across All Directors In A VPLEX System.

• Virtual Volumes Are Exposed To Front-End Hosts In Storage Views. Host I/O And SCSI Task Management Is Done Here.

Cache


VPLEX 雙活架構說明

– For availability, VPLEX allows

for a high-availability

infrastructure as well as for

eliminating failover from storage

operations.

– For mobility, you can also take

advantage of VPLEX’s disaster

avoidance, data center migration,

and workload-rebalancing

capabilities.

– For collaboration, VPLEX

enables instant and

simultaneous data access over

distance and streamlined

workflows.

Site B

BE

F

E

Cach

e

Dev V

irt

Site A

BE

F

E

De

v V

irt

Cach

e

BE

VPLEX VPLEX


VPLEX 高可用性架構說明 • Server Failure

-Volumes Continue To Be Available At Surviving Cluster.

• Preferred Cluster Failure

-VPLEX Witness Detects Failure And Guides Surviving Cluster To Continue I/O Regardless Of Preference.

• Cluster Link Failure

-Volumes Continue To Be Available At Preferred Cluster.

• Storage Array Failure

-VPLEX Continues I/O To Mirrored Copy On Surviving Array.

• Failure Of VPLEX Witness

-No Impact.

Site A (Preferred) Site B

VPLEX Witness

• VPLEX Cluster Component Failure

-VPLEX Geosynchrony Automatically Recovers.


VPLEX Witness 運作說明

1. I/O Through Both Clusters.

2. Cluster A Failure. Witness Can See B But Not A.

3. Witness Guides Cluster B To Override Preference. App I/O Continues Through B And Changes Are Recorded In DRL.

4. Cluster A Is Back Online, And learns That B Resumed.

5. B Resyncs A Based On DRL.

6. Resync Finishes.

Site B

BE

F

E

Ca

ch

e

Dev V

irt

Site A (pref)

BE

F

E

Dev V

irt

Cach

e

BE

Witness Stretched vSphere Cluster


RecoverPoint CDP

Continuous Data Protection

RecoverPoint

VNX VMAX 10K VMAX 20K VPLEX VMAX 40K

RecoverPoint CLR

Concurrent Local And Remote Replication

RecoverPoint CDP

Continuous Data Protection

RecoverPoint CRR

Continuous Remote Replication

雙活中心 + 持續性資料保護最高等級的資訊保護 :


VPLEX新功能 - RecoverPoint Splitter

• Splitter intercept all virtual volume changes to RPA

• Any Point in Time Recovery

Back End (BE)

Device Virtualization

Front End (FE)

Cache

Splitter

RecoverPoint Appliances

(RPA)

Site A Site B

VPLEX

Metro

Site C

RecoverPoint CRR VPLEX VPLEX RPA


Mobility. Availability. Collaboration.

VPLEX 1st site Within A Data Center

VPLEX Metro Across Data Centers

Synchronous Distances

RecoverPoint Operational And 3rd

Site Recovery

VPLEX 2nd site Within B Data Center

EMC 雙中心雙活的跨雲解決方案

Active Active

DA

DR


Questions?

Technology

101 cd 1415-1445