2. 2 Industry Waves Backup and recovery evolution Version 1.0 Majority of companies use tape Tape one size fits all Backup once per day Tape recoveries slow & unreliable Administrators do all recoveries Today Disk based backup becoming cost effective Archive and Backup diverge Recovery in minutes or seconds Continuous backup End user recovery Self healing backups Future

3. 3 Rapid and Reliable Recovery Recovery is unreliable and painful Too slow and expensive to recover files typical recovery takes hours or days (slow, expensive) Recoveries and unreliable 42% of companies had failed recovery in past year 50% of customers wish for online backup verification Data protection is labor intensive All recoveries go through the server admin Solution with DPM Designed for fast recovery Enables a whole new recovery scenario–end users: files, Admins: servers Snapshots enable multiple recovery points Recoveries are assured through verification Customer Data Protection Pain Points Customer Needs: Faster Recovery

4. 4 Continuous and efficient protection Backup is too complex, slow, and inefficient Shrinking backup window Growth in data makes it too difficult and time consuming to back up Backups too slow/lots of manual scheduling Mandated disaster recovery plans 24 hours of data loss assumed with tape Tape as one size fits all (file and server recovery, offsite protection and long term archive) Tape inconvenience and unreliability of is # 1 challenge Solution with DPM Faster and More Efficient Backup Never do a full backup from a production server again Avoid the shrinking backup window Customer Needs: Eliminating Backup Window Customer Data Protection Pain Points

5. 5 Current backup products are too complex, costly Companies spend too much time and money on backup Labor is the majority of backup cost Branch office data protection is cumbersome Massive data growth increases costs Too many tapes Most disk-based backup solution are cost prohibitive Operational Simplicity Solution with DPM Designed to reduce TCO via continuous, disk-based backup Automatic protection schedules = reduce operational costs, increase efficiency Allows end users to easily recover their own files Usability and easier management Integration into existing environment Industry standard hardware and software Customer Needs: Simpler Solution, Lower costs Customer Data Protection Pain Points

6. Microsoft – NDA Only 6 What does DPM do? Near continuous (hourly) protection of files DPM agent on file servers Byte-level changes transmitted to DPM server Multiple scheduled snapshots per day Easy IT or End-User restore – fast from disk

7. 7 DPM Server DPM “Under The Hood” Agent components: File System Filter: runs in kernel mode File Agent service runs in user mode Requires reboot of file server Each protected volume has synchronization log Synchronization log 10% of volume size Agent overhead 3-5% Synchronization “Pull” model, synchronizations instigated by DPM Asynchronous replication Two communication channels Control commands - DCOM Data movement - DPM proprietary protocol Replication unit of operation is protected volume Check points: 2 min/10 MBs Byte level replication Consistency Check Unexpected events create need to resync replica Consistency Check does two things Checks file by file for more recent modified times If changed, all blocks associated with file are check summed and appropriate blocks are replicated to DPM server All open files are check summed irregardless DPM Engine.NET application (managed code) Application state and configuration data stored in SQL Protected data stores: Replica Area is a mounted volume that is made up of replica of protected volume and the diff area Transfer Area is an unmounted volume that contains the spill log Non-blocking, distributed architecture

8. 8.NET application (managed code) All application state and configuration data stored in full SQL Server database Protected data stored in the following places Replica Area is a mounted volume that is made up of replica of protected volume and the diff area Transfer Area is an unmounted volume that contains the spill log. Spill log holds data transferred from protected server but yet to be applied to replica. Non-blocking, distributed architecture. All operations are autonomous of each other thus allowing system to scale to limits of hardware DPM – Technology Overview DPM Engine DPM Server File Servers Active DirectoryClients

9. 9 Agent components: File System Filter: runs in kernal mode, implemented as mini-filter per W2K3 SP1 File Agent service runs in user mode Requires reboot of file server before operating due to legacy (non-mini filters) to assure correct ordering Each volume with protected object has synchronization log in hidden Volume System Information directory Synchronization log is by default 10% of volume size but can be adjusted Agent puts overhead of 3-5% on processor protected server DPM – Technology Overview Agent File Servers Active DirectoryClients DPM Server

10. 10 “Pull” model, all synchronizations instigated by DPM server Asynchronous replication Two separate channels for communication Control commands sent over DCOM Data movement sent over TCP/IP using DPM proprietary protocol Replication unit of operation is the protected volume Check points the lesser of 2 min or 10 MBs for resumption of incomplete operations All file operations are replicated (rename, delete, copy) along with all changed blocks, this is most similar to “byte level replication” DPM – Technology Overview Synchronization File Servers Active DirectoryClients DPM Server

11. 11 Various unexpected events create need to resync replica with source data (hard reboot of protected server, synchronization log overflow) Sync with Consistency Check does two things Checks file by file for more recent modified times then on replica If changed, all blocks associated with file are check summed and appropriate blocks are replicated to DPM server All open files are check summed irregardless Rolling process that traverses the entire directory tree, not a snapshot that freezes volume at point in time DPM– Technology Overview Synchronization with Consistency Check File Servers Active DirectoryClients DPM Server

12. 12 Monitor   Monitor the health and status of your DPM server easily   Set up automatic alerts via email

13. 13 Report   Comprehensive reports show all data protection activity on the network

14. 14 DPM/MOM Integration   Control and monitor multiple DPM Servers   All alerts and events uploaded to MOM

15. 15 Top 10 Reasons To Deploy DPM Recover files in minutes instead of hours Eliminate the backup window of your production servers Shrink potential data loss down to 1 hour No more failed recoveries Get easy instant backup verification Enable end users to perform their own recoveries Setup and protect your file servers in minutes Advanced functionality at low cost Remove tapes from branch offices and centralize backups at datacenter Rich out-of-box reporting and monitoring functionality

16. 16 DPM Demo Task : Configure Protection

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36. 36 DPM Walkthru Task : End-User Restore from Windows Explorer

37. 37 Original Files

38. 38 Overwritten

39. 39 Right-click on any file or directory

40. 40 PVC Previous Versions Client is an applet that extends Windows Explorer and Office applications with this simple new tab. Available since Windows Server 2003 and VSS. Usually installed silently via Group Policy

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43. 43 Open document

44. 44 Keep the new one AND Restore the old one

45. 45 Restore the old one

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48. 48 Software Industry Partners Hardware

49. 49 © 2003-2004 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.