Hello,

For this month, we are featuring I/O articles.  Slow I/O can be tricky to troubleshoot.  So we have listed articles that may help in first identifying if you have slow I/O, waits that can surface due to slow I/O, and how to troubleshoot slow I/O:

How to Tell if the I/O of the Database is Slow [Article ID 1275596.1]

Document 223117.1 Troubleshooting I/O-related waits

Document 1476092.1 Troubleshooting IO Performance Problems Impacting Scattered Reads

Resolving Issues Where 'read by other session' Waits When I/O is Slow [Article ID 1477229.1]

Resolving Issues Where 'read by other session' Waits Occur When I/O is NOT Slow and Cause is Unknown [Article ID