Enhanced HA and DR with

MetroCluster & Vmware

Philippe Wackers

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Datacenter 1

Loop

A

Loop

B

Why MetroCluster?

Single ControllerSPOF

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Why MetroCluster?

Datacenter 1

Heartbeat

HA Cluster

Active Active

SPOF

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Metrocluster

MetroCluster is a NetApp unique, cost-effective synchronous replication solution for combined HA and DR, protecting against site disasters within a campus or metropolitan area

Stretch MetroCluster

Campus DR protection - Distances up to 500m

Fabric MetroCluster Metropolitan DR protection - Distances to 100 km

Configurations

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

MetroCluster Features & Benefits

Highest Level of Availability– Provides superior availability to RAID 1 + 0– Protects against data center failures and site disasters

for a negligible cost premium Simple & Fast Recovery

– Automatic Recovery for any single component failure– Single command recovery even for major catastrophic

site failures Cost-effective

– Combines High Availability clustering with Disaster Recovery mirroring

Zero Data Loss – Synchronous data replication

Enhanced Read Performance– Up to 80% improved read performance for random

reads, due to simultaneous read operations occurring on both plexes

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

MetroCluster Components

• Cluster license Provides automatic failover capability between sites in case of most hardware failures

• SyncMirror Provides an up-to-date copy of data at the remote site; data is ready for access after failover without administrator intervention

• ClusterRemote Provides a mechanism for administrator to declare site disaster and initiate a site failover via a single

command for ease of use

• FC Interconnect Provides filer connectivity between sites that are greater than 500 meters apart; enables sites to be

located at a safe distance away from each other

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

MetroCluster Overview: SyncMirror

Volume1

Writing to a mirrored volume

Pool 1Plex 1

A’

Pool 0Plex 0

A

Volume1

Writing to an unmirrored volume

Pool 0Plex 0

A

Two Plexes CreatedPlex 0 from Pool 0 = LocalPlex 1 from Pool 1 = Remote

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Stretch MetroCluster

Datacenter 2Datacenter 1

Heartbeat

500m @ 2Gb270m @ 4Gb

Active Active

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Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Disk Failure

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved. Datacenter 2Datacenter 1

Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Controller Failure

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved. Datacenter 2Datacenter 1

Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Storage Failure DC1

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved. Datacenter 2Datacenter 1

Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Interconnect Failure

Each controller

will continue to

run, serving it’s

LUNs / volumes

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved. Datacenter 2Datacenter 1

Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Hosts Failure DC1

VmwareHA

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved. Datacenter 2Datacenter 1

Heartbeat

NFS, ISCSI, FCP NFS, ISCSI, FCP

MetroCluster – Site Failure DC1

VmwareHA

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Fabric MetroCluster

Datacenter 2Datacenter 1

HeartbeatActive Active

100Km @ 2Gb50Km @ 4Gb

Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.

Highest Level of Availability with MetroCluster

Storage Processor FailureSingle Path Failure

Single Shelf Module Failure

SyncMirrorShelf Failure (Backplane, Ops Panel)

Triple Disk FailureDual Shelf Failures (Controllers, PSU/Fans, Cables)

FC Loop Failure (misbehaving disk)

MetroClusterStorage Rack Failure

(Controller, Disk Shelves)Data Center/Site Disaster

Single HBA/Port FailureDouble Disk Failure

Single Disk Failure + MEDR

CFO + RAID-DP

Availability

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Summary

MetroCluster is a Netapp unique, cost-effective synchronous replication

solution

– For combined high availability and disaster recovery within a campus or metro area, that minimizes downtime with no data loss

– For multiple sites within a campus or metro environment, that need a highly resilient storage-cluster solution for business-critical applications

Simplifying Data Management