ABC.com, whohas a Windows 2003 database environment, notices that the performance of their
CLARiiON LUNs is lower than expected. Even though the workload has not increased in the last
six months, the performance has declined steadily. For a full working day, you collect Analyzer
data that proves ABC.com’s observations. Which combination of problems is probably the reason
for this poor performance?

A.
CLARiiON watermarks set incorrectly and prefetch set to constant mode

B.
Soft media errors causing data re-reads andCLARiiON read cache prefetching

C.
Stripe crossings caused by small database I/Os and long seek times due to write caching

D.
Disk crossings due to misaligned data and long seek times due to fragmentedfilesystems