Description

This wait type accumulates while SQL Server is waiting for a page to be retrieved from disk and loaded into memory. The page will be retrieved in update mode (for modify and versioning operations). If this value is high it is likely that disk or memory are not keeping up with the workload

Resolved by

DBAs

Suggested solutions

1. Add additional memory
2. Investigate disk latency
3. Increase the maximum memory allocation
4. Indexing, look for high disk I/O queries
5. Data page compression if CPU usage is not suffering

Additional research

Red Gate: PAGEIOLATCH_UP
SQL Authority: PAGEIOLATCH Waits

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