Short for 'Storage Area Network', a SAN is a network for block level storage. One or more controllers present logical drives (called LUNs) to one or more hosts through a switched fabric.

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Replicated databases across locations; delay in application

I have a replicated instance of database on different locations different SANs which is utilized for running a vendor supported application. However, I notice that there is a significant delay between ...
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Did another application use an Oracle block?

One of our production Oracle databases got hit with a corrupt block. Looking at the hex dump, the first part of the block seems to contain Microsoft Windows Event Log and Windows Registry information. ...
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VM SQL Data and Log drives have one Block Size, SAN another. Issues?

Setting up a new SQL VM. What happens if VM data and log drives have 64K (recommended) block size but SAN (IBM DS3500 Express) was configured with a different block size? I want to avoid IO issues ...