Memory Management Between ZFS and Applications in Oracle Solaris 11.x (Doc ID 1663862.1)

Last updated on APRIL 07, 2024

Applies to:

Solaris Operating System - Version 11.1 and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

This document contains information regarding new tunable parameters limiting how much memory can be used by the ZFS ARC cache.

user_reserve_hint_pct in Solaris 11.2 and Solaris 11.1 SRU 20.5 or newer that provides a hint for how much memory to reserve for application use
zfs_arc_max_percent in Solaris 11.4 SRU 27 or newer that provides the limit of ZFS ARC

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