1 © 2008 DataCore Software Corp. — All rights reserved © 2008 DataCore Software Corp Virtual Disks in a Mechanical World Made fast, reliable, flexible

1© 2008 DataCore Software Corp. — All rights reserved © 2008 DataCore Software Corp

Virtual Disks in a Mechanical WorldVirtual Disks in a Mechanical World

Made fast, reliable, flexible & cost-effective by softwareMade fast, reliable, flexible & cost-effective by software

2© 2008 DataCore Software Corp. — All rights reserved 2

Are Your Disks Hurting?

Age quickly Fail catastrophically Never fast enough Constantly out of space Painful to restore Costly to upgrade Agonizing to migrate


Work-Arounds

Excess capacity RAID sets Front-end controllers Caches Online diagnostics Frequent backups Off-site copies

―Narrow Scope―Manufacturer, Model# and O.S. Dependent

Expensive, Time Consuming &Much Throw-away


LoadBalancing

CentralizedManagement

High-speedCaching

RemoteReplication

ThinProvisioning

Virtual DiskPooling

RAIDStriping

Manufacturer-Independent SAN-wide Features

Synch Mirroring(High-Availability)

OnlineSnapshots

Virtual DiskMigration

ContinuousData Protection

& Recovery


Not-so-perfect disk drives behave “Ideally”

Fast Reliable Shareable Easy to back up,

maintain & upgrade Never grow old

“Virtual” Disks


Two Software Products to Choose From

Pools up to 32 TBs Runs on single server or

highly-available server pair Can run in a Virtual MachineSANmelody™

SANsymphony™

For a typical iSCSI or Fibre Channel SAN:

For Larger SANs: Scales indefinitely across multiple

tiers of devices, including high-end storage systems

N+1 redundant Superset of advanced services


Windows, Unix, Linux, NetWare, MacOs,Virtual Machines & Hypervisors

IDE,SCSI, SATA,SAS,FC, iSCSI, etc.

Hardware Flexibility & Future-proofingSoftware Adapts to Change! Perpetually Yields Better Performance &

Value

SAN

Windows servers inspecialized role

iSCSI/Ethernetor Fibre Channel


Sampling of Customers


Case In Point

Customer Challenge:$200,000 budgeted for virtual infrastructure. Surprised to learn that SAN alone cost over $190K

Solution: Business Continuity within budget using DataCore

300 Users SQL Server, Exchange 40 App Servers Windows VMs 10TB

Police Station

Co-location

10 Miles


Desktop, App, Server & Storage Virtualization

Storage virtualization creates manufacturer-independent virtual disk pools

Disk & SAN Hardware

Cache, Mirror, Fail-overVirtual DisksVirtual DisksVirtual Disks

Replicate

Disk & SAN Hardware


Before Server Virtualization: Physical Isolation

~30 Users

~35 Users

~20 Users

~30 Users

~15 Users

Few people depend on each physical resource

Hardware changes more confined


5X MoreUsers

After: Concentrated Workloads

Physical Server

Virtual

Machines


5X MoreWorkload

Result: Pronounced Dependency on Storage

Magnifies impact of: I/O Bottlenecks Interruptions

Physical Server

Virtual

Machines

Shared Resources


Take Advantage of Newly Freed Resources

VirtualServer Pool

VirtualSAN

Main Computer Site DisasterRecovery

Site

VirtualDisk Pool


High Availability & Disaster RecoveryMade Practical

Known-good copy

VirtualServer Pool

VirtualSAN

Main Computer Site

DisasterRecovery

Site

VirtualDisk Pool

AutoFailover &Failback

AutoReplicate


Fully Redundant & Remotely Replicated

Profile• 1000+ Users• 130+ App Servers• SQL, Oracle, Office• ESX, Linux• Microsoft Cluster• 125TB Pool• 4 EMC CX Arrays• 2 EMC DMX Arrays

Customer ChallengeBusiness Continuity for regulatory compliance & data retention


Clusters Spread Across Two Campuses

Profile • 1000+ Users• 100+ App Servers• Oracle, SQL,

PACS, Office• ESX, Linux• Microsoft Cluster• 138TB Pool• IBM FasT Arrays

Customer ChallengeEliminate storage-related interruptions despite 100% annual capacity growth


Get the Most From Your Storage

Fullest Utilization

Highest Availability


Call on Us When …Virtualizing Servers & Desktops• Can’t tolerate shared storage

failures• Poor performance from I/O

bottlenecksUpgrading Storage• Running out of disk space• Must migrate to new equipment &

SANs

Shaping Business Continuity Plan• Concerned about downtime &

disasters• Anxious to protect online assets


Questions ?????


Thank You …

www.datacore.com


Virtual Disk Pooling

Create virtual disks of desired sizes

Expand capacity without downtime

Add different types of disks even from different vendors

Use what you paid forSANsymphonySANmelody

Consolidate like or unlike disk resources

≤32 TB >> Petabytes


High-Speed Caching

Accelerates disk I/O response from existing storage

Uses CPUs and memory from general purpose servers as powerful, inexpensive cache

Anticipates next blocksto be read & groups writes to avoid waiting on disks

SANsymphonySANmelody

Speeds up performance


Load Balancing

Overcome typical storage-related bottlenecks

Spread load on physical devices using different channels for different virtual disks

Automatically bypassesfailed or offline channels


Improve response and throughput


Thin Provisioning

Appears to computers as very large drives (e.g. 2 TB disks)

Takes up only space actually being written to

Dynamically allocates more real space when required

Reduces need to resize LUNsSANsymphony

Just enough space, just-in-time

SANmelody


RAID Striping

Circumvents drive failures

Spreads I/O across multiple spindles

Offloads RAID 0 & 1

Supports popular RAID devices in pool


Better protection & performance


Synchronous Mirroring

SANsymphony

Real-time I/O replication for High-Availability

Eliminates SAN or storage as a single point of failure when combined with multipath I/O drivers

Enhances survivability using physically separate nodes

Updates two independent copies simultaneously

SANmelody

N+1Redundancy


Virtual Disk Migration

SANsymphony

Transparently move contents from one disk to another

Allows non-disruptive hardware disk upgrades for mirrored volumes

Clears & reclaims space occupied by original

SANmelody


Online Snapshots

Recover quickly atdisk speeds to known good state

Eliminate back-up window

Provide “live” environment for analysis, development& testing


Capture Point-in-time Images


Continuous Data Protection & Recovery

Dial back to restore an arbitrary point in time

Logs and timestampsall I/Os

No need to quiesce or interrupt applications SANsymphonySANmelody

Return to any point-in-time withouttaking explicit backups


Remote Replication

Perfect for disaster recovery or business continuity

Only needs a basic IP connection to secondary site

Bi-directionalSANsymphonySANmelody

Keep distant copies without impacting local performance

1-to-ManyMany-to-1


SAN-wide Centralized Management

Automates laborious, repetitive tasks

Intuitive to operate

Universal tools work across like or unlike devices


Control and monitor all SAN resources from one console

2 Nodes SAN-wide


Analysis & Reporting

Reveals SAN resource consumption & performance trends

Assists with capacity planning, utilization & quality of service decisions

Export results to 3rd party tools for further analysis,charge-back & billing

SANsymphony

Tracks & charts long-term SAN behavior

SANmelody

Documents

1 © 2008 DataCore Software Corp. — All rights reserved © 2008 DataCore Software Corp Virtual Disks in a Mechanical World Made fast, reliable, flexible