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1. No. The stripe size always equals 128 KB in any configuration. ASM uses fine or coarse-grained striping depending on ASM templates. Files like the controlfile are fine-graind, meaning the stripe size is always 128 KB. Other files use coarse striping where the stripe size is equal to the effective AU size. (http://docs.oracle.com/cd/E11882_01/server.112/e18951/asmcon.htm#BABCGDBF)
2. No. Its a number assigned to the disk within its disk group.
Edited by: Dude on Dec 24, 2012 11:26 AM
That is not a true statement. Please read the document, the stripe size depends upon what method of striping we using (fine-grained or coarse-grained)
1. No. The stripe size always equals 128 KB in any configuration. (http://docs.oracle.com/cd/E11882_01/server.112/e18951/asmcon.htm#BABCGDBF)
--from the same oracle document:
To stripe data, Oracle ASM separates files into stripes and spreads data evenly across all of the disks in a disk group. The fine-grained stripe size always equals 128 KB in any configuration; this provides lower I/O latency for small I/O operations. The coarse-grained stripe size is always equal to the AU size (not the data extent size).
--are we using fine grained or coarse-grained ? and how to change the striping method (using TEMPLATES)
also see following: