Disaster Recovery 備援 Virtual Tape Library 虛擬磁帶機

Continuous Data Protection 連續數據保護 陳文賢 (eric.chen@falconstor.com)

GM, APACChairman, Storage Networking Industry Collaboration (SNIC)

校園及企業資訊服務、安全、維運

At-A-Glance Headquartered in Melville, New York. Large RD/Support center in Taiwan

Providing Network Storage Software to Optimize the Availability (Recovery) of Business-Critical Data

Innovative Technology OEMed by Major Industry Players EMC, HP, IBM, Intel, McData/Broacade, Sun/StorageTek, Huawei-3Com, KEL, Acer, NEC

Public Company (NASDAQ:FALC)

Our idea is to use the Storage Networking Technology to provide Business Continuity Solutions: Storage Consolidation, Virtualization, Replication, Snapshot, Virtual Tape Library, etc.

IB

FalconStor’s Unified Storage Architecture

FCiSCSICIFS NFS

“Protocol-Independent” Host Connectivity LayerComprehensive Storage ServicesSnapshotMirroringTimeMarkReplicationZero-Impact-Backup

“Hardware-Agnostic” Storage (Disk, Tape) Abstraction LayerI/O Load Balancing, Controller/Path Fail-Over/Fail-Back

NotesSAPExchangeSQLserver Oracle

100% modular

WORMDisk

NASDisk

SANDisk

DLTDLT LTOLTO

iSCSIDisk

FCDisk 100% modular

100% modular

SnapshotAgent

SnapshotAgent

SnapshotAgent

SnapshotAgent

SnapshotAgent

IPStor for your Data Center & DR Site

Traditional Disaster Recovery SchemesOffsite tape storage

Costly and difficult to manage

Labor intensive

Time to recovery is very slow

Tape restore not very reliable

Host-to-host replication

SD

Select Unload

HEWLET TPACKARD SureStore DLT70

SD

Sele ct Un load

HEWLETTPACKARD SureStore DLT70

SD

Select Unload

HEWLETTPACKARD SureStore DLT70

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

Multiple individual points of management

Specific software needed for every operating system

Affects host processing

Lack of database support

Example: Veritas, DoubleTake

Disk array-to-disk array replication Cannot replicate across vendor barriers: supplier

lock in

Costly channel extenders

May have limited OS support

Lack of database support

Example: EMC

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

SD

SPARCserver 2000Sun

S D

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

SD

SPARCserver 2000Sun

IP WANApplicationservers

Site A Site B

Applicationservers

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

Vendor A Storage Same Storage,Vendor A

IP WAN

IPStor Disaster Recovery: Asymmetric and Many-to-One

Centralized services, easy to manage Cost effective, low TCO Works across all vendor storage devices Rapid recovery of applications

Supports all open operating systems from a single console

Reliable recovery from disk

Database integration

No impact to host processing

IPStor appliancesSD

SD

SD

COMPAQPROLIANT 1500

SD

COMPAQPROLIANT 1500

SD

SPARCserver 2000Sun

SD

SilkWorm 2400

0 2 4 6

1 3 5 7

SD

Sun

SPARCstorage Library

SD

COMPAQPROLIANT 1500

SD

SPARCserver 2000Sun

SD

COMPAQPROLIANT 1500

SD

SilkWorm 2400

0 2 4 6

1 3 5 7

Standby Servers

Application Servers

IPStor applicance

Target Storage (different fromsource storage)

Consolidatedtape backup

Site A

Site B

Source Storage

IP WAN

Site C

Key Benefits

VTL (Virtual Library) and CDP (Continuous Data Protection)

Data Loss & Recovery Method

Source: ProgressSmart, Storageworld Conference, June 2005

Site Disaster3% Software

Malfunction14%

Virus7%

Human Error32%

HardwareMalfunction

44%

Restore from Tape or DISK

Restore from Tape or DISK

Restore from Tape or DISKRestore from

Tape or DISK

Recover from Tape or DISK

Source: Enterprise Strategy GroupSource: Enterprise Strategy Group

Backup/Restore Challenges

"What are the most common causes of a backup failure?" -- Percent of All Users

(multiple responses accepted), N = 222

3%

3%

32%

40%

47%

53%

59%

0% 10% 20% 30% 40% 50% 60% 70%

Don't Know

Other

Network Failure

Software Failure

Human Error

Hardware Failure

Media Failure

Causes of Backup & Recovery FailuresCauses of Backup & Recovery Failures

"What are the most common causes of a recovery failure?" -- Percent of All Users

(multiple responses accepted), N = 135

5%

3%

18%

27%

28%

50%

61%

0% 10% 20% 30% 40% 50% 60% 70%

Don't Know

Other

Network Failure

Hardware Failure

Software Failure

Human Error

Media Failure

Source: Enterprise Source: Enterprise Strategy GroupStrategy Group

Paradigm Shift

Backup OffsiteArchive

ImmediateBusiness

Continuance

Backup OffsiteArchive

ImmediateBusiness

Continuance

Tape

Tape

Disk Mirror / SnapShot

Tape

Disk Mirror / SnapShot

Tape & Disk

Tape Library At a Glance

Tape Drive

Tape Drive

Tape Drive

RoboticArm

Barcode Reader

Tape Drive

Mail Slot

I/O Interface

I/O Interface

What is FalconStor VTL?

FalconStor VTL

Emulates a tape library

Fibre Channel or iSCSI FC-attached RAID

Storage (FC and/or ATA)

Backup Media Server

VirtualTape LibraryBackup Server

IPStor VTL Appliance

Storage Farm

FC, SCSI, SATA Storage

SolarisHP/UX Linux Windows

iSCSI iSCSI

FC SAN

NDMP

NAS Appliance

IP SAN

i-Series(AS-400)

Replicate to remote IPStor/VTL over IP

Virtual Tape Shelf (Vault)

VTL: Virtualizes Entire Data Center

Virtual Library3

Virtual Library2

Virtual Library1

VirtualTape Drive1Virtual

Tape Drive1VirtualTape Drive1

Virtual“Tape Person”

VirtualTape Truck(Replication

or Export withEncryption)

IPStor VTL Appliance

SIR (available in end of Q4,2006) Integrating VTL and RDE within FalconStor SIR Transparent and non-disruptive to existing environments Decoupling the data services layer from existing data path Out-of-Band processing Rapid Client-based recovery Platform, storage, and backup software agnostic Falconstor Single Instance Repository =

Redundant Data Elimination with rapid recovery

Continuous Disk Backup

FC Target FC Initiator

vTape vTape vTape

vTape vTape vTape

Administrators using 3rd party tape backup software to protect/recover data.

Continuous Disk Backup

Administrators using continuous disk backup for rapid recovery.

PrimaryDisk

PrimaryDisk

BackupDisk

BackupDisk

DiskSafeContinuous

Mirroring

A0’-2 Update2A0’-1

E0’-3E1’-3E2’-3

E0’-2E1’-2E2’-2

E0’-1E1’-1E2’-1

S1’-3 S0’-3S1’-2 S0’-2S1’-1 S0’-1

SQLAD DC Exchange

System+SQL

SQL DB+Log

System+AD DB

System+Exchange

DB+mail root

EX Log

SQLDBA

DiskSafe

S0

S1

On-Line Delta Replication

S0’S1’Real-timeReplicaSnapshot 10:00Snapshot 11:00Snapshot 12:00

Take SnapshotEvery 1 hours

ExchangeAdministrator

E0’E1’E2’

DiskSafe

Replica every two hours and take snapshot

E0

E1

E2

10:0012:0014:00

2hrsReplica

A0

A0’

DomainAdmin DiskSafe

Replica Manually and take snapshot before Windows Update

LastReplicaUpdate1

CDP Protect your Data and “System”via Continuous/Schedule/Manual modes

FalconStorCDP appliance

Booting from RCD

E0’-3E0’-3E1’-3E1’-3E2’-3E2’-3E0’-2E0’-2E1’-2E1’-2E2’-2E2’-2E0’-1E0’-1E1’-1E1’-1E2’-1E2’-1

ExchangeExchange

System+System+ExchangeExchange

DB+DB+mail rootmail root

EX LogEX Log

ExchangeExchangeAdministratorAdministrator

E0’E0’E1’E1’E2’E2’

DiskSafe

Replica every Replica every two hours and two hours and take snapshottake snapshot

E0E0

E1E1

E2E2

10:0010:0012:0012:0014:0014:00

ReplicaReplica

PPE2’-3E2’-3

MountMountSnapshot DiskSnapshot Disk

PPE1’-3E1’-3

PPE0’-3E0’-3

Booting fromBooting fromiSCSI HBAiSCSI HBA

Fast Recovery from H/W or S/W errors

FalconStorCDP appliance

-service restart within 5 minutes after disk crash- recover the crashed disk in the background w/o downtime

Cluster & HA MSCS , HACMP Veritas ClusterLiferkeeper , CA HAPolyserve

FalconStor CDP Solution

Backup s/w System backupBackup to Tape LSR Backup to Disk GhostSAN Lan Free Backup

CDP

1. Expensive hw & sw2. Do not protect sw errors3. Need skillful engineer4: Complexity of fail back process5. 1 to 1

1.Continuous backup, RPO<1 min2.Service restart within 5 Min3.Multiple snapshot copies for fast recovery/rehearsal4.Background restore w/o downtime5.Many to 1

1. Long downtime during restore2. RPO> 12 hr 3. High backup failure rate4. Difficult to do rehearsal5. Complexity of recovery process

Recovery PointRecovery Point

Recovery TimeRecovery Time

30-90 sec 01-05 min 01-24~hr

Case Studies

CDP case study

東海計中導入前之架構及遭遇的問題

各伺服器儲存空間獨立，無單一或集中化的管理機制。 資料存放不均，以致不足或過剩浪費資源，而無法有效率的管理。 儲存設備距離限制短，不易分享。 資料量持續且快速成長造成空間不足或預估不夠時，擴增程序繁雜不便。

Internet Services AccessFast Ethernet

THU Computer Center Data Center

Fast Ethernet

FirewallRouter

Fibre ChannelSCSI

師生資訊系統、校務行政系統、單一登入系統等（HW：SUN Fire 6800、SUN Blade1000/2500、SUN E450 等）

SUN StorEdge T3External HDRAID Subsystem

Internal HD

校園網路服務系統（東海首頁、電子郵件、個人網站等）（HW：x86 Server、PC Server 等）

各 server 皆為 DAS（Direct Attached Storage）

東海計中導入 Storage Consolidation 後之架構

Heterogeneous RAIDs

Internet Services Access

StorageDataAccess

Gigabit Ethernet

THU Computer Center Data Center

Gigabit Ethernet

FirewallRouter

Server Farm

Storage Service System

—— Public IP Address Network—— Fibre Channel

FC Switch

FC SwitchFC-SAN

• 導入項目：– 光纖通道儲域網路（ FC-SAN ）：包括 FC Switch 、 HBA 、 Fibre cable 。– Storage Services System ： IPStor Server

東海計中導入 DR 後之架構

Heterogeneous RAIDs

Internet Services Access

BackupRestoreAccess Storage

DataAccess

Gigabit Ethernet

Gigabit Ethernet

THU Computer Center Data Center

Virtual Tape Library

Other Building

Router

Server Farm(Backup Clients)

Storage Service SystemPrimary Server

—— Public IP Address Network—— Private IP Address Network—— Fibre Channel

FC Switch

Storage Service System within RAID card & Storage devices

Replication Server

FC Switch

Tape Library

FC-SAN

Backup Server running HyperTrac

SCSI

Gigabit Ethernet

(Singlemode Fibre + LongWave SFP)

Vault

東海計中導入後之效益 搭配儲存空間整合架構，易集中規劃管理。 訂定資料備份政策可依資料性質而訂定不同方式與規則，更能配合階段性任務機動調整資料備份或同步的時間間隔。 以磁碟為基礎的備份機制，備份窗口短，資料復原速度快。 達成異地備援、磁帶異地存放的目的。 降低長期整體擁有成本（ TCO）

How to contact us:FalconStor Software, Inc.

infoasia@falconstor.comsupportasia@falconstor.comhttp://www.falconstor.com.tw