You want reorganize the DATA diskgroup while continuing database operations. The DATA diskgroup was created using normal redundancy having one disk per failure group. The two disks used are /dev/sda1 and /dev/sda2.
You plan to drop the existing disks and add the /dev/sdb1 and /dev/sdb2 disks to failure group FG_C and the /dev/sdc1 and /dev/sdc2 disks to failure group FG_D.
Which procedure would you use to minimize the effect of the I/Os of this reorganization on ongoing database operations?
A. Set rebalance power to 0 for diskgroup DATA.
Add failure group FG_C with all the /dev/sdb disks.
Add failure group FG_D with all the /dev/sdc disks.
Drop disks/dev/sda1 and /dev/sda2.
Set rebalance power to 1 for diskgroup DATA.
B. Set rebalance power to 0 for diskgroup DATA.
Add failure group FG_C with all the /dev/sdb disks.
Add failure group FG_D with all the /dev/sdc disks.
Drop disks/dev/sda1 and /dev/sda2.
Set rebalance power to 9 for diskgroup DATA.
C. Set rebalance power to 9 for diskgroup DATA.
Add failure group FG_C with all the /dev/sdb disks.
Add failure group FG_D with all the /dev/sdc disks.
Drop disks /dev/sda1 and /dev/sda2.
Set rebalance power to 0 for diskgroup DATA.
D. Set rebalance power to 0 for diskgroup DATA.
Drop disks /dev/sda1 and/dev/sda2.
Add failure group FG_C with all the /dev/sdb disks.
Add failure group FG_D with all the /dev/sdc disks.
Set rebalance power to 1 for diskgroup DATA.
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