Consider the following sequence of CELLCLI commands and SQL statements:
All CELLCLI commands and SQL statements are executed successfully without warnings.
Which statement is true about the I/O performance of the DATA01 ASM diskgroups?
A.
The DATA01 diskgroups has better performance because the DATA01 griddisks were created
first.
B.
The DATA02 ASM diskgroup has better performance because the DATA02 diskgroups was
created first.
C.
The DATA01 diskgroup has better performance because the DATA01 griddisks are created on
interleaved cell disks.
D.
The performance of both diskgroups is balanced because they are created on interleaved
griddisks.
Explanation:
Griddisks are the fourth layer of abstraction, and they will be the Candidate Disks to
build your ASM diskgroups from. By default (interleaving=none on the Celldisk layer), the first
Griddisk that is created upon a Celldisk is placed on the outer sectors of the underlying Harddisk.
It will have the best performance therefore
Incorrect:
Not D: non-interleaved is the default.
A