December 2017
Intermediate to advanced
434 pages
10h 14m
English
The PAGEIOLATCH wait type is used when the thread is waiting for a page to be read into the buffer pool from the disk. This wait type comes with two main forms:
You may quickly assume that the storage has to be the problem, but that may not be the case. Like any other wait, they need to be considered in correlation with other wait types and other counters available to correctly find the root cause of the slow SQL Server operations. The page may be read into the buffer pool, because it was previously removed due to memory pressure and is needed again. So, you may also investigate the following:
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