Using the drive with MSSQL and Oracle partitioning

Hi all

Although this isn't a likely configuration I would recommend/meeting, this issue has been driving me crazy because I can't find the answer and I don't know how to test it on my own (lack of material and knowledge).

I met a paper on SQL Server 2012 and 2008R2, which States:
When SQL Server performs sorting data IO operations, it first sorts data by partition. SQL Server accesses one disc at a time, and this can reduce performance. To improve the performance of data sorting, divide your partitions on disks data files by putting in place a RAID. In this way, although always SQL Server sorts data by partition, it can access all drives of each partition at the same time.
http://msdn.microsoft.com/en-us/library/ms190787.aspx
>

I'm curious whether Oracle has the same "limitation." I see in the 10.2 docs they say:
Although you are not required to keep each table or index partition (or subpartition) in a space separated, it is to your advantage to do so. Partitions in separate tablespaces storage allows you to:
* reduce the risk of data corruption on several partitions

* Save and retrieve each partition independently

Controls the mapping of the partitions of hard disks (important for I/O load balancing)

* Improve the manageability, availability and performance

http://docs.Oracle.com/CD/B19306_01/server.102/b14231/partiti.htm
>

But it's not precisely say it can access more than one disc at a time. I can't tell if this applies to Oracle or not. Sorry for the reference to an earlier version, but I searched this statement in 11.2 documentation but could not find.

Anyone can shed some light on this? It is eating at me :)

Thank you
Rich

My PC at home came with two hard drives of 1 t. Default HP would deliver them together towards the top in a setting stripped for performance (even if I had the drive put in place like a mirror). For Windows, there is only a C"" drive. Yet, most of the documentation you have read still refer to the disk drives as your disc consists of physical disks to which you have access to. In a world record is often a block box, that is another question and discussion.

HTH - Mark D Powell.

Tags: Database

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