Virtual Disks in a Mechanical World

Transcript Virtual Disks in a Mechanical World

Virtual Disks in a Mechanical World

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

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

Expensive, Time Consuming & Much Throw-away

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

Manufacturer-Independent SAN-wide Features

Centralized Management Virtual Disk Pooling Synch Mirroring (High-Availability) High-speed Caching Load Balancing Thin Provisioning RAID Striping Virtual Disk Migration Online Snapshots Continuous Data Protection & Recovery Remote Replication © 2008 DataCore Software Corp. — All rights reserved

    

Not-so-perfect disk drives behave “Ideally”

Fast Reliable Shareable Easy to back up, maintain & upgrade Never grow old

Two Software Products to Choose From

For a typical iSCSI or Fibre Channel SAN:

 Pools up to 32 TBs SANmelody ™   Runs on single server or highly-available server pair Can run in a Virtual Machine SANsymphony ™

For Larger SANs:

 Scales indefinitely across multiple tiers of devices, including high-end storage systems  N+1 redundant  Superset of advanced services

Hardware Flexibility & Future-proofing

Software Adapts to Change! Perpetually Yields Better Performance & Value Windows, Unix, Linux, NetWare, MacOs, Virtual Machines & Hypervisors iSCSI/Ethernet or Fibre Channel Windows servers in specialized role

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

Sampling of Customers

Case In Point

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

Customer Challenge:

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

Solution:

Business Continuity within budget using DataCore

Police Station

10 Miles Co-location

Desktop, App, Server & Storage Virtualization

Desktops Replicate Desktops Provision, Isolate, Update Desktops Desktop virtualization centrally pools and delivers personalized desktops PCs, Workstations, Terminals Guest OS Duplicate Guest OS

WS 2003

PCs, Workstations, Terminals Duplicate, Relocate, Fail-over Guest OS Server virtualization makes you independent of server hardware Server Hardware Virtual Disks Replicate Virtual Disks Server Hardware Cache, Mirror, Fail-over Virtual Disks Storage virtualization creates manufacturer-independent virtual disk pools Disk & SAN Hardware Disk & SAN Hardware

Before Server Virtualization: Physical Isolation ~30 Users ~15 Users ~30 Users ~35 Users ~20 Users   Few people depend on each physical resource Hardware changes more confined

After: Concentrated Workloads

Result: Pronounced Dependency on Storage

5X More Workload

Magnifies impact of:   I/O Bottlenecks Interruptions

Take Advantage of Newly Freed Resources

High Availability & Disaster Recovery Made Practical

Disaster Recovery Site Main Computer Site

Virtual Server Pool Virtual SAN

Auto Failover & Failback Auto Replicate

Known-good copy

Fully Redundant & Remotely Replicated

Customer Challenge

Business Continuity for regulatory compliance & data retention • • • • • • • •

Profile

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

Clusters Spread Across Two Campuses

Customer Challenge

Eliminate storage-related interruptions despite 100% annual capacity growth • • • • • • •

Profile

1000+ Users 100+ App Servers Oracle, SQL, PACS, Office ESX, Linux Microsoft Cluster 138TB Pool IBM FasT Arrays

Get the Most From Your Storage

Fullest Utilization Highest Availability Fastest Performance

Call on Us When …

Virtualizing Servers & Desktops • Can’t tolerate shared storage failures • Poor performance from I/O bottlenecks Upgrading 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

Consolidate like or unlike disk resources  Create virtual disks of desired sizes  Expand capacity without downtime  Add different types of disks even from different vendors  Use what you paid for SANmelody ≤32 TB SANsymphony >> Petabytes

High-Speed Caching

Speeds up performance  Accelerates disk I/O response from existing storage  Uses CPUs and memory from general purpose servers as powerful, inexpensive cache  Anticipates next blocks to be read & groups writes to avoid waiting on disks

SANmelody SANsymphony

Load Balancing

Improve response and throughput  Overcome typical storage related bottlenecks  Spread load on physical devices using different channels for different virtual disks  Automatically bypasses failed or offline channels

SANmelody SANsymphony

Thin Provisioning

Just enough space, just-in-time  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 LUNs

SANmelody SANsymphony

RAID Striping

Better protection & performance  Circumvents drive failures  Spreads I/O across multiple spindles  Offloads RAID 0 & 1  Supports popular RAID devices in pool

SANmelody SANsymphony

Synchronous Mirroring

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 SANsymphony N+1 Redundancy

Virtual Disk Migration

Transparently move contents from one disk to another  Allows non-disruptive hardware disk upgrades for mirrored volumes  Clears & reclaims space occupied by original SANmelody SANsymphony

Online Snapshots

Capture Point-in-time Images  Recover quickly at disk speeds to known good state  Eliminate back-up window  Provide “live” environment for analysis, development & testing

SANmelody SANsymphony

Continuous Data Protection & Recovery

Return to any point-in-time without taking explicit backups  Dial back to restore an arbitrary point in time  Logs and timestamps all I/Os  No need to quiesce or interrupt applications SANmelody SANsymphony

Remote Replication

Keep distant copies without impacting local performance  Perfect for disaster recovery or business continuity  Only needs a basic IP connection to secondary site  Bi-directional

SANmelody SANsymphony 1-to-Many Many-to-1

SAN-wide Centralized Management

Control and monitor all SAN resources from one console  Automates laborious, repetitive tasks  Intuitive to operate  Universal tools work across like or unlike devices SANmelody 2 Nodes SANsymphony SAN-wide

Analysis & Reporting

Tracks & charts long-term SAN behavior  Reveals SAN resource consumption & performance trends  Assists with capacity planning, utilization & quality of service decisions  Export results to 3 rd tools for further analysis, charge-back & billing party

SANmelody SANsymphony

Virtual Disks in a Mechanical World

Transcript Virtual Disks in a Mechanical World

Virtual Disks in a Mechanical World

Are Your Disks Hurting?

Work-Arounds

Manufacturer-Independent SAN-wide Features

Not-so-perfect disk drives behave “Ideally”

Two Software Products to Choose From

Hardware Flexibility & Future-proofing

Sampling of Customers

Case In Point

Desktop, App, Server & Storage Virtualization

After: Concentrated Workloads

Take Advantage of Newly Freed Resources

High Availability & Disaster Recovery Made Practical

Fully Redundant & Remotely Replicated

Clusters Spread Across Two Campuses

Get the Most From Your Storage

Call on Us When …

Questions ?????

Virtual Disk Pooling

High-Speed Caching

Load Balancing

Thin Provisioning

RAID Striping

Synchronous Mirroring

Virtual Disk Migration

Online Snapshots

Continuous Data Protection & Recovery

Remote Replication

SAN-wide Centralized Management

Analysis & Reporting

Directory