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Data Guard Vs SAN To SAN Replication

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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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