Change Details

Always require prefetch: our lower RAM server is 4G, reporting 4073M, and so disabling prefetch (as 4096M are required). For low RAM servers, limit ZFS ARC to 2G: that allows InnoDB to use RAM too. That allows 1G InnoDB, 2G I/O and to keep 1G for other applications. References: - https://www.freebsd.org/doc/handbook/zfs-term.html - https://www.freebsd.org/doc/handbook/zfs-advanced.html

Always require prefetch: our lower RAM server is 4G, reporting 4073M, and so disabling prefetch (as 4096M are required). For low RAM servers, limit ZFS ARC to 2G: that allows InnoDB to use RAM too. That allows 1G InnoDB, 2G I/O and to keep 1G for other applications. References: - https://www.freebsd.org/doc/handbook/zfs-term.html - https://www.freebsd.org/doc/handbook/zfs-advanced.html Ref T1268

Always require prefetch: our lower RAM server is 4G, reporting 4073M, and so disabling prefetch (as 4096M are required). For low RAM servers, limit ZFS ARC to 2G: that allows InnoDB to use RAM too. That allows 1G InnoDB, 2G I/O and to keep 1G for other applications. References: - https://www.freebsd.org/doc/handbook/zfs-term.html - https://www.freebsd.org/doc/handbook/zfs-advanced.html Ref T1268