To improve server system performance, which of the following strategies has the advantage of spreading read and write operations over multiple controllers?
A.
Use SCSI controller cards that support asynchronous I/O.
B.
Upgrade from IDE and SCSI to UltraDMA or Wide Ultra SCSI.
C.
Install separate drives on individual controller cards.
D.
None of the above.
Explanation:
Installing separate drives on individual controller cards has the advantage of spreading read and write operations over multiple controllers.
Incorrect
Answers:
A: When you opt to use SCSI controller cards that support asynchronous I/O, you enable multiple drives to operate in parallel. This improves the performance of stripe sets.
B: While upgrading from IDE and SCSI to the faster UltraDMA or Wide Ultra SCSI technologies is always recommended, you must install separate drives on individual controller cards if you want to spread read and write operations over multiple controllers.
D: C is the correct option.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 386-387.