GAJAH ANNUAL REPORT 2015 | 1
What’s New in Clustered Data ONTAP 8.3.1Presented by Tia Williams
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Metro Cluster with Single Node ClustersForeign LUN Import EnhancementsSVM DRAdditional 8.3.1 Enhancements All Flash FAS Cluster Peering Non-Default IP spaces Audit Log Forwarding
Agenda
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MetroCluster MetroCluster in clustered Data ONTAP 8.3
MetroCluster™ technology enables business continuity and continuous availability beyond the data center
MetroCluster
Cluster B inData Center B
Cluster A inData Center A
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MetroCluster Two-Node MetroCluster
Distances of up to 200 km between sites
All storage is fabric-attached and visible to both nodes
Same level of protection of an HA-pair
Switchover and switchback transfer the cluster’s entire workload between sites
Support stretch MetroCluster (500 meters)
*Four-node MetroCluster highly recommended because of local HA failover support
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MetroCluster Supported Two-Node MetroCluster Configurations
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Foreign LUN Import Enhancements
Migration of third-party LUNs into Clustered Data ONTAP
No license fees
Automatic LUN alignment
No DTA 2800 (data migration appliance)
Online and offline modes
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Foreign LUN Import Enhancements
Block based copy of course LUN contents
Copies to a pre-created flexible volume
TR-4380 SAN migration using foreign LUN import methodology
Minimal downtime for cutover
Other use cases
May be useful for LUNs with unaligned I/O
32-bit to 64-bit upgrades
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SVM DR
Eliminate failover complexity
Simple predefined failover steps
Ease of management with automation
Protection for SVM data
Protects SVM identity and namespace, not just volumes
Automated setup and provisioning
Managed with SnapMirror commands
SnapMirror for SVM DR
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SnapMirror for SVM (SVM DR) Overview Eliminate Failover Complexity & Enhance Ease of Management
Identity-Preserve mode Secondary SVM assume identity of primary Most configuration passes to secondary
CIFS clients reconnect seamlessly NFS clients must remount Network Settings may require reconfiguration
if switching subnets
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Log1 Log2
DB1 DB2
Sec SVM Retains all configurations
Identity Preserve True
Sec SVM Retains partial configurations
SVM
Identity Preserve False
Site A
Site B
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SnapMirror for SVM (SVM DR) Overview Automated for Ease
Setup
Change Management
Failover
• VOLs on DP SVM provisioned automatically• All VOLs in SVM & configuration protected by single
RPO• Any data/configuration change automatically protected• Hosts unmount source & mount destination VOLs
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Log1 Log2
DB1 DB2
Site A
Generic File Server
SVM
Site B
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Key Functional Attributes in 8.3.1
Single schedule for all data VOLs & Configuration
SnapMirror CMDs apply to SVM, not individual VOLs
SVM root VOL not replicated, namespace within it is replicated (Symlinks, ACL)
In ID, preserves true mode destination SVM offline in mirrored state with LIFs inactive
On a cluster reboot, a SVM DR source must be manually started
SAN configuration not replicated
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Source & Destination SVMs in Same Subnet Extended Layer 2 Network
One button Failover – No DNS changeSecondary assumes all Previous configurationsRe-mount & access NAS sharesSame CIFS server accountOne button failover
Id Preserve = True
Clustered Data ONTAP®
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Log1 Log2
DB1 DB2
Site A
Site B
Sec SVM Retains all configurations
Identity Preserve True
SVM
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SVMs in Different Subnets Across Different Network Subnets
Configure LIFs for destination & SRC subnets– Disable LIFs belonging to destination subnet
LIFs for SRC or destination subnets only reachable in their respective subnetsOn Failover LIFs in destination subnet enabled
ID Preserve = True
LIF disabled
LIF enabled
Clustered Data ONTAP®
(SVM)Finance
Tax
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Clustered Data ONTAP®
(SVM)DP-
Finance
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Docs
Audit
Site A
Site B
Sec SVM Retains all configurations
Identity Preserve True
Configure LIFs in source Subnet
Configure LIFs in destination Subnet
LIFs in source subnet not reachable
SVMs accessed through LIFs in destination subnetSVM
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Activation Destination for Read Access Cross Site/GEO DR
ID Preserve = False
Read access for NFS & SAN Both SVMs use different N/W Services
DNS, NIS, ADAll replicated configurations can’t be modified in mirrored stateSetup access for different set of hostsDifferent CIFS server accountDetails of config replicated
Clustered Data ONTAP®
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(SVM)HR
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(SVM)DP-
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Log1 Log2
DB1 DB2
Site A
Site B
Sec SVM Retains partial configurations
Identity Preserve False
SVM
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Recovery to a Secondary Site Extended Layer 2 Network
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Recovery to a Secondary Site Extended Layer 2 Network (Continued)
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Unsupported Use Cases for SnapMirror SVM
Automated LUN mapping for SAN
NFS failover without remount
Fan-out and cascading mirrors
Partial namespace replication
Failover of a subset of protected volumes
Multiple recovery point objectives (RPOs within an SVM)
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Additional Enhancements to 8.3.1
Audit Log Forwarding
Cluster peering in non-default IPspaces
All flash FAS enhancements
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All FAS Flash Enhancements
In-line compression enabled on all volumes
Up to a two-to-one space savings from compression
alone; additional savings from cloning and snapshots
Reduced latency for read workloads
All flash FAS clusters
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Cluster Peering with Non-Default IPspace
Typical use case: backup and DR as a service
Peer from any user-created IPspaces
Use one inter-cluster LIF per node, per IPspace
Create discrete peering networks by tenant
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Audit Log Forwarding
Enhanced security and compliance
Up to 10 remote syslog destinations
Command: cluster log-forwarding
Contents of command-history.log
What command?
When?
Who?
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Summary
MetroCluster Two-node clusters
Foreign LUN import enhancements
SVM DR
Additional 8.3.1 enhancements
All flash FAS
Cluster peering non-default IPspaces
Audit log forwarding
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Related Courses Clustered Data ONTAP
CIFS Administration NFS Administration Data ONTAP Cluster Administration SAN Scaling and Architecting
(CIFS)(NFS)(DCADM)(SANSA)
2 days1 day5 days2 days
GAJAH ANNUAL REPORT 2015 | 24
THANK YOU