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Forum Home >> Database Server Administration >> loss of data using a SAN    loss of data using a SAN juliet clark Fri Jul 30, 2010 Hi, we are testing failovers for two Windows 2008 servers using an Oracle 11g R2 database on a SAN. The SAN is disabled/enabled between these 2 servers. In the documentation it says: Loss of data if the SAN drive is being written to when the HBA card is disabled. You must ensure that all interfaces are shutdown before implementing the failover process. Question: How can you lose data on the SAN? Surely the SAN is just a set of disks and Oracle can recover using the redo logs once you enabled the SAN onto the secondary server? Thank you. William Hill Fri Jul 30, 2010 and what if the write didn't happen to the disks, what then Displaying 1 to 2 (of 2 Replies)