Disaster Recovery Beyond Backup - PowerPoint PPT Presentation

1 / 21
About This Presentation
Title:

Disaster Recovery Beyond Backup

Description:

Backup Last Line of Defence. Enhancing Backup with Replication ... Shave hours off a tape restore strategy. No need to re-catalog tapes ... – PowerPoint PPT presentation

Number of Views:46
Avg rating:3.0/5.0
Slides: 22
Provided by: EDob9
Category:

less

Transcript and Presenter's Notes

Title: Disaster Recovery Beyond Backup


1
Disaster Recovery Beyond Backup
  • Jason Phippen Director Product and Solutions
    Marketing, EMEA

2
Agenda
  • Disaster Recovery Concepts
  • Backup Last Line of Defence
  • Enhancing Backup with Replication
  • Remote Site Replication and Mirroring
  • Clustering for Disaster Recovery
  • Questions

3
Disaster Recovery Concepts
  • Recovery Point Objective (RPO)
  • Point in time to which applications data must be
    recovered to resume business transactions
  • Recovery Time Objective (RTO)
  • Maximum elapsed time allowed before lack of
    business function severely impacts an
    organization

4
Recovery Point Objective (RPO)
Replication
Tape Backup w/ Offsite Vaulting
  • How much data loss can you endure?

5
Recovery Time Objective (RTO)
Geographic Clustering
Recovery from Tape
  • How much downtime can you endure?

6
Choosing a Recovery Site
  • Far Enough away
  • How far away from the main site?
  • What resources should it have?
  • Site Strategies (Hot, Warm, Cold)
  • Considerations
  • Fault zones
  • Flood plains
  • Power grids
  • Climate zones
  • Locality relative to other sites (e.g., airport)
  • Remote customers and employees

7
Backup Your last line of Defense
  • Redundant systems replicate user errors, viruses
    and data corruption
  • System or component redundancy (RAID, mirroring)
    cannot replace backup
  • Backup tapes may represent the last valid copy of
    data
  • Backups are your last line of defense against
    total data loss

8
Enhancing Backup with Replication
9
Replication-enhanced Backup
  • Replicating the Backup Catalog server
  • Shave hours off a tape restore strategy
  • No need to re-catalog tapes
  • No need to rebuild the backup/restore server
  • Tape restores can begin immediately

Site A
Site B
Replicate Backup Catalogs
Backup Master/Media Server
Backup Tape Copies Sent to Offsite
Backup Clients
10
Remote Site Replication and Mirroring
11
Replication and Mirroring
Asynchronous
Synchronous
  • Key Requirements
  • Must be far enough away
  • No windows of data corruption at secondary

12
Synchronous Replication
Primary Site
Secondary Site
  • Strengths
  • Maximum data currency (RPO)
  • Data available immediately at secondary (RTO)
  • Weaknesses
  • Potential to impact application performance
  • Data writes lag by network latency
  • Write commit latency across nodes

13
Asynchronous Replication
Primary Site
Secondary Site
  • Strengths
  • Maximum performance
  • May have less application impact
  • Data available immediately at secondary (RTO)
  • Weaknesses
  • Secondary may lag primary (RPO)
  • Potential for data corruption (not a weakness
    for VERITAS)

14
Logical Volume ManagementRemote Mirroring
Primary Site
  • Lower hardware costs
  • Groups physical disks into logical volumes
  • Hardware Independence,
  • Greater IT productivity
  • Simplified administration of heterogeneous
    environments
  • Proactive management of applications
  • Increased application ROI

Application
Volume Manager
  • Can mirror over SAN distances

15
Clustering for Disaster Recovery
16
Clustering for Disaster Recovery
Campus / MAN Disaster Recovery
WAN Disaster Recovery
MAN
OR
Clustering , Replication
Clustering, Remote Mirroring
Clustering, Replication, Global Clustering
17
Campus / MAN Disaster Recovery St-r-e-t-c-h
Cluster Over A SAN
Distance may vary depending upon infrastructure
18
Global Clustering
  • Geographically dispersed sites linked by public
    carrier wide area network
  • Each site aware of the configuration and state of
    all of the sites
  • Direct site level migration in event of
    catastrophe
  • Global Availability Management
  • Single point of monitoring and administration

19
Wide Area Availability
20
VERITAS Uniquely Qualified (HA and DR)
Local
Multi-site
Availability Requirements
VERITAS Cluster Server
VERITAS Global Cluster Manager
Volume Manager/ Foundation Suite
VERITAS Volume Replicator
NetBackup/ Backup Exec
- NetBackup Vault - BMR / IDR
21
Questions
Write a Comment
User Comments (0)
About PowerShow.com