What would you do to ensure better I/O performance?

You have a Linux machine with the following features: 1) No RAID configuration 2) Operating system without asynchronous I/O
The Oracle database instance is running on the machine. You executed the iostat -d -x 2 2 command and observed the following: 1) High wait time for I/O requests 2) Small request queue size
What would you do to ensure better I/O performance?

You have a Linux machine with the following features: 1) No RAID configuration 2) Operating system without asynchronous I/O

The Oracle database instance is running on the machine. You executed the iostat -d -x 2 2 command and observed the following: 1) High wait time for I/O requests 2) Small request queue size

What would you do to ensure better I/O performance?

A.
Add more swap space to the system.

B.
Enable the database instance to use I/O slaves.

C.
Add additional Host Bus Adapters (HBAs) in the system.

D.
Increase the communication area for I/O buffers by increasing the size of the large pool.



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