Exadata General (MOSC)

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How work the Exadata storage software

edited Jun 4, 2014 12:00PM in Exadata General (MOSC) 3 commentsAnswered

Hello, all !

Let's take the non-Exadata environment.

As we know, the multiblock disk reads can be split into some reads if buffer cache contain some block(s) readed.

For example, let see the multiblock read of 128 blocks, the block numbers 1-128.

If the block say 51 is in the buffer cache, then Oracle DB will break one big read into two: blocks 1-50 and 52-128.

Is the cell storage software working the same way during the smart scan ?

For example, if the one block reside in flash cache, then cell storage software break its multiblock read into some smaller ?

Thanks,

Yury.

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