Re: SAME and separating disk and index tablespaces

• Original Message -----

> the striped array. However, this does not improve access time. If you
> have your tables and indexes on the same striped array, necessarily the
> two I/O's have to be done sequentially, incurring two times access time
> at a minimum. However, if you separate the two into different arrays,
> then you can access them in parallel, starting to get data from each
> disk array in 1* access time.

YOU can do that. But Oracle doesn't. Strictly: first indexes, then data pointed to by those indexes. So, no point from the performance perspective in separating. From other perspectives, heaps of reasons. But NOT from the performance perspective.

Cheers
Nuno Souto
nsouto_at_optusnet.com.au

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Author: Nuno Souto
  INET: nsouto_at_optusnet.com.au

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