LEARNING ORACLE BECOMES EASY
Data Guard Vs SAN to SAN Replication |
||
Oracle Data Guard |
SAN-to-SAN |
|
Implementation Cost |
Low | High |
Database Aware |
Yes | No |
Granularity of Replication |
Transaction level | Disk Block Level |
Distance Limitations |
No Limitations | Limitations Exist |
Recovery from human error or corruption |
Easy to detect and can be recovered by replaying logs | Replicates block as it is and possible that corrupt blocks gets replicated. |
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