A systems administrator notices that two servers running similar workloads behave differently in the face of high activity and low memory conditions. While the first server performs slowly under…

Swap space (paging file or virtual memory) allows a server to extend effective memory capacity by moving inactive pages to disk when physical RAM is exhausted. Server 1 is likely configured with adequate swap, causing it to slow down due to disk I/O paging but remain stable and continue running. Server 2 has insufficient or no swap configured, so when it exhausts physical RAM it has no fallback mechanism and the OS or workloads crash due to out-of-memory conditions. Swap disk space is the first and fastest configuration difference to investigate to explain this specific behavior pattern.

Disk latency affects overall I/O throughput and response times but does not explain why one server crashes while the other merely slows down when physical memory is depleted.

I/O tuning optimizes storage throughput and queue depths but has no direct relationship to the specific failure mode of a server crashing versus degrading gracefully under low memory pressure.

RAID configuration governs storage redundancy and read/write performance characteristics but does not influence how a server behaves when it runs out of available memory.