Optimizing VDI TCO and Performance with UCS Storage Accelerator - Session from Wednesday - 6

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Optimizing VDI TCO and Performance with UCS Storage Accelerator

Ashok Rajagopalan

Product Manager, Desktop Virtualization


VDI: Impact of Infrastructure

Source: 2011 Morgan Stanley Desktop Survey

Server, Storage and Networking on average comprise 50% of solution TCO per desktop

$160

$125

$40

$150

$125

$50

Storage

Server

Networking

Endpoint

Broker

Licensing

Average Cost per Virtual Desktop ($)


VDI Software Broker Desktop Entitlement• Non-Persistent or Pooled

‒ Generic virtual desktop assigned to users on a per session first come first server basis and then returned to the pool (possibly with profile removed) or destroyed

• Personalized

‒ Thin Provisioned Desktops with Persistence/Personalization

• Persistent or Assigned

‒ Permanently assigned to a user statically or by first to connect

Users and Groups Desktops Pool of Virtual MachinesEntitle Group to Desktop

Assign Pool

Entitle User to Desktop Assign Individual

Personalized Pooled Desktop


VDI Shared Storage Challenges

• Cost of IOPS

• SAN and Storage Manageability

• Lumpiness for Scale (stair-step cost incr.)

• Predictability

Benefits of Server Flash for VDI

• Lower Cost of IOPS

• Improved Performance: IOPS & Latency

• Server based manageability

• Smaller bricks for scale

• Predictable performance at scale

• Power consumption and floor space


Economics of IOPS

• For 2000 desktop solution, UCS Fusion IO Flash solution can reduce storage costs by 50% compared to standard enterprise shared storage

• A single UCS Fusion IO 785GB card can provide up to 500,000 writes (512KB) roughly 10x more write IOPS compared to typical shared storage for 2000 desktops

• A single UCS Fusion IO 785GB card can provide up to 100,000 reads (512KB) roughly 3x more write IOPS compared to typical shared storage for 2000 desktops

SAN with Enterprise Storage* UCS Storage Accelerators: UCS Fusion IO 785GB**$0

$50,000

$100,000

$150,000

$200,000

$250,000

$300,000

$350,000

294063.6

147000

½ the cost

* Includes Industry Standard Enterprise Storage to support up to 2000 desktops with 1 year support ($286,000), 4 x Ports of Nexus 5000, 4 x Storage Port licenses for UCS Fabric Interconnect, all at ASP** Includes UCS Fusion IO 785GB cards at ASP

Storage Costs for 2000 virtual desktops


Traditional Architecture vs. Server Tier-0• Read/Writes serviced by the storage array• For IOP intensive workloads, backlogs/serialization occur at access fabric, storage controller, & storage media• Best Read/Write performance would be Read from/Write commit on storage controller write cache• Queue depths on the controller serialize IOPS

Virtual DesktopsPlatform + OS/Hypervisor Network

Server Storage

ControllerStorage Media

Write latency = ~ 600μs - 15 ms

Read latency = ~ 600μs - 10 ms


Traditional Architecture vs. Server Tier-0• Read/Writes serviced by the storage array• For IOP intensive workloads, backlogs/serialization occur at access fabric, storage controller, & storage media• Best Read/Write performance would be Read from/Write commit on storage controller write cache• Queue depths on the controller serialize IOPS

Virtual DesktopsPlatform + OS/Hypervisor Network

Server Storage

ControllerStorage Media

Write latency = ~ 600μs - 15 ms

Read latency = ~ 600μs - 10 ms

• Read/Writes serviced by the UCS Storage Accelerator (PCIe Flash)• 10x more IOPS compared to 20 x SSDs behind a RAID controller• Consistent performance of random read / write• Queue depths don’t matter

Write latency = ~ 30μs – 2ms

Read latency = ~ 70μs - 2ms

• UCS Storage Accelerator based solution can reduce average read latency by 5x compared to enterprise shared storage

• UCS Storage Accelerator based solution can reduce average write latency by 7.5x compared to enterprise shared storage


Power Consumption & Floor Space

UCS Storage Accelerator: UCS Fusion IO 785GB**

Industry Standard Shared Storage*

0.00 0.50 1.00 1.50 2.00 2.50 3.00

0.153846153846154

2.4

Watts Per Virtual Desktop

• UCS Storage Accelerator is 16x more energy efficient on per virtual desktop compared to typical enterprise storage

• UCS Storage Accelerator consumes no incremental floor space for the solution

* Typical 15K RPM SAS drive on Industry Standard Enterprise Storage consumes 8W, and assuming 20% additional overheads for controller, shelves, and management nodes ** UCS Fusion IO 785 GB card typical is 20W, and on average support 130 virtual desktops on the B 200 M3 blade server

Power consumption on per Virtual Desktop


Template

Automate provisioning from template

On-demand provisioning

Multiple types of desktops

Persistent, Non-persistent, Individual

Apply group policies

VMware View Example: Provision desktops

View Manager

vCenter

Provision Desktops


Standard VDI Templates vs. vClones

10GB x 15 +500MB x 15 =157.5GB

10GB +500MB + 500MB x 15 = 25GB

+

VMware View helps reduce storage costs by up to 70%


VMware View Solution based on UCS Storage Accelerator

Replica

V1

Base Image + Snapshot

OS Data Disk User Data Disk

Virtual Infrastructure

Linked Clones

Profiles

Linked Clones placed on UCS Storage Accelerator


Benefits of UCS Storage Accelerator for VDI

SUMMARY

• Lower Cost of IOPS

• Improved Performance: IOPS & Latency

• Server based manageability

• Smaller bricks for scale

• Predictable performance at scale

• Power consumption and floor space

$0$50,000

$100,000$150,000$200,000$250,000$300,000$350,000

294063.6

147000

Write latency = ~ 30μs – 2ms

Read latency = ~ 70μs - 2ms

UCS Storage Accelerator: UCS Fusion IO 785GB**

Industry Standard Shared Storage*

0.00 0.50 1.00 1.50 2.00 2.50 3.00

0.153846153846154

2.4

Watts Per Virtual Desktop

Optimizing VDI TCO and Performance with UCS Storage Accelerator - Session from Wednesday - 6

Technology

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