1. 1 Bill Hayden Director, Data Services Edward Jones

2. 2 Data Virtualization Define data virtualization Data virtualization History The future of data

3. 3 Definition Data exists at disparate sites Updates accepted at each site Capable of running independently Synchronized by replication technology

4. 4 Data Replication History Backups taken daily Sent off site via PTAM Stored or sent to second site 24-hour replication latency Really only good for disaster recovery

5. 5 Replication Today Mix of technologies  Database replication  File system replication  Disk based replication  Clustering Publisher/Subscriber model Remote copies read only or inaccessible Consistent points of time

6. 6 The Vision Update anywhere on ALL data Sites can be geographically disbursed Data is synchronized in seconds Status is reported up the stack

7. 7 Issues Distance Conflicts Race Conditions Split brain Database of record

8. 8 Industry Status Databases—Almost there! File services—NFS and CIFS  Best hope is file sharing appliances  They own the file system and the disk File systems Disk replication  Needs to become logical  Read-only at the target site

9. 9 Thank You

10. 10 Questions