Flashback on a Physical Standby Database
First topic is about using flashback feature on a physical standby database.
Metalink note "How To Open Physical Standby For Read Write Testing and Flashback" (805438.1) is one of the helpful sources. Another useful doc is "Oracle® Data Guard Concepts and Administration 10g Release 2 (10.2)" with the section "Using a Physical Standby Database for Read/Write Testing and Reporting" . And the last one comes from Alejandro Vargas : "Using a 10g R2 Oracle Physical Standby Database For Read/Write Testing and Reporting"
What they said :
"it's basically the manual process of doing what oracle's "snapshot standby" feature does in 11g."
"Just be sure to drop the restore point when you're done, or Oracle will fill up your FRA with flashback logs."
Discussion in Oracle-l group (freelists.org).
SAN Level Replication vs. Dataguard?
Discussion in Oracle-l group (freelists.org) with "Replicating Live Oracle DataFiles/LUNs to remote site via SAN tool?" topic, has a nice discussion about comparison of SAN replication and Dataguard.