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Maximum size of ZFS ARC is incorrectly initialized (Doc ID 1908088.1)

Last updated on JANUARY 15, 2024

Applies to:

Solaris Operating System - Version 11.1 and later
Solaris x64/x86 Operating System - Version 11.1 and later
Information in this document applies to any platform.
*** Reviewed for currency 06-January-2018 ***


 When zfs_arc_max is not set in /etc/system, the maximum size of the ZFS ARC is set as follows by default.


However, it can be initialized to around 50% of physical memory minus 1GB with the following releases.

In the following example with 16GB physical memory, the max arc size is less than 7GB although it should be around 15GB.



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