© 2014 VMware Inc. All rights reserved.

Software-Defined Storage with VMware Virtual SAN 5.5

Mike ArmstrongSenior Site Reliability EngineerOneCloudVMware

July, 2014

Agenda

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• Introduction to VSAN

• VSAN Architecture

• Configuring VSAN – Demo (Off-Line Demo)

• Additional Resources

• Q & A

• What’s in your vSphere environment?

The Hypervisor Opens Up New Opportunities

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SAN / NASx86 Servers Cloud Storage

vSphere

The virtualization platform:

• Knows the needs of all

apps in real time

• Sits directly in the I/O path

• Global view of underlying

infrastructure

• Software Defined Storage

• Hardware agnostic- Check

the HCL:

http://www.vmware.com/res

ources/compatibility/search.

php?deviceCategory=vsan

VSAN Is Not an Appliance

VSAN Architecture

• SSD used for Read Cache & Write

Buffer Cache

• HDD stores VMDK, VM namespace

directory, vswap, Delta disks

created for snapshots

• VSAN IP Network used for Storage

Replication & Connectivity

• A vmk Configured on Each Host

• Supports Virtual Distributed Switch

Network I/O Control

• L2 Multicast required on VSAN

Network, recommend Jumbo

Frames and 10GB

VSAN Architecture Contd.

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• Full integration with HA, DRS, Horizon View (including Linked Clones), and SRM

• Storage Policies assigned at the VM (Storage Policy Based Management)

• vCenter and ESXi hosts running 5.5 U1

• Managed with vSphere Web Client

• Minimum of 3 hosts with minimum 1 SSD and 1 HDD

• If more than 3 hosts are in the cluster then not all hosts need to contribute storage

• Maximum of 32 hosts per cluster, 32,00 VM’s, 5 disk groups per host, each disk group

has maximum of 7 HDD and 1 SSD

• Object-based storage with VMFS-L file system

• Single VSAN datastore per cluster and thin-provisioning is enforced by default

• Does Not Support Storage I/O Control, Datastore Clusters

• VSAN Uses Includes: Management Cluster, DMZ, Remote Office, VDI, DR, Tier 2/3, Test

& Dev

Two Ways to Build a Virtual SAN Node

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Completely Hardware Independent

1. Virtual SAN Ready Node

…with multiple options available at GA + 30

Preconfigured server ready to use Virtual SAN…

2. Build Your Own

…using the Virtual SAN Compatibility Guide*

Choose individual components …

SSD or PCIe

SAS/NL-SAS/ SATA HDDs

Any Server on vSphere

Hardware Compatibility List

HBA/RAID Controller

VSAN Ready Nodes

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http://partnerweb.vmware.com/programs/vsan/Virtual%20SAN%20Ready%20Nodes.pdf

VSAN Ready Node Contd.

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vSphere + Virtual SAN

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Simple to set up via policy

Delivered on per VM basis

Zero data loss in case of disk, network or host failures

Ensures zero downtime from disk or network failures

Interoperable with vSphere HA and Maintenance Mode

Virtual SAN Is Highly Resilient Against Any Hardware FailureVirtual SAN is Designed to Ensure Data is Never Lost in Case of Failures

Virtual Machine Storage Policies

• Storage Capabilities

assigned to Storage

Policies

• VASA (Storage API’s

Storage Awareness)

used to show Vendor

Storage Capabilities

• Storage Policies

assigned to the VM’s

• Storage Policy can be

changed while the VM is

running

Scale UPAdd more Disks

IOPSCapacity

40 TB

400 TB

4.4 PB

Scale OUT

Add more

nodes

ElasticGrow or shrink on demand

GranularAdd single nodes or disks

Non-disruptive No app downtime

VSAN Enables Elastic Linear Scalingof Performance and CapacityAbility to Expand Storage by Adding Hosts & Disks

“Virtual SAN enables us to scale our

storage infrastructure and while

providing the necessary redundancy.

This allows us to be more agile and

bring our solutions to market faster.”

— Frans Van Rooyen

Cloud Architect, Adobe

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Flexibly Configure For Performance And Capacity

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Performance

2xCPU – 8-core

128GB Memory

2xCPU – 8-core

128GB Memory

2xCPU – 8-core

128GB Memory

1x

400GB MLC SSD(~15% of usable capacity)

1x

400GB MLC SSD(~10% of usable capacity)

2x

400GB MLC SSD(~4% of usable capacity)

5x

1.2TB 10K SAS

7x

2TB 7.2K NL-SAS

10x

4TB 7.2K NL-SAS

IOPS1

Raw Capacity

~20-15K

6TB

~15-10K

14TB

~10-5K

40TB

Capacity

VSAN POC Checklist

http://www.vmware.com/files/pdf/products/vsan/VMware_Virtual_SAN_POC_Guide.pdf

Additional Resources

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Product Pagehttp://www.vmware.com/products/virtual-san/

VSAN Communityhttps://communities.vmware.com/community/vmtn/vsan

VMware Compatibility Guidehttp://www.vmware.com/resources/compatibility/search.php?deviceCategory=vsan

Hands-On-Lab

http://vmware.com/go/vsanlab

Virtual SAN 60-day Free Evaluation

http://www.vmware.com/go/try-vsan-en

Cormac Hogan

http://cormachogan.com/vsan

Questions?