enhanced ha and dr with metrocluster & vmware philippe wackers
TRANSCRIPT
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
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 – 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
Restricted to NetApp Employees & NDA Channel Partners. Copyright (c) 2006 Network Appliance, Inc. All rights reserved.
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