What's New in Oracle Solaris System Tuning?

This section describes new or changed parameters in the Oracle Solaris 11.1 release.

• Oracle Solaris 11.1: Oracle Solaris ZFS tunable information is provided in Chapter 3, Oracle Solaris ZFS Tunable Parameters.

• Oracle Solaris 11.1: The maxusers, max_nprocs, ngroups_max, pidmax, and segkpsize parameters have been revised. For more information, see Chapter 2, Oracle Solaris Kernel Tunable Parameters.

• Oracle Solaris 11.1: The dnlc_dircache_percent parameter is new . For more information, see dnlc_dircache_percent.

• Oracle Solaris 11: The rstchown parameter that was previously set in the /etc/system file is obsolete. If you set this parameter in the /etc/system file, the following error message is displayed:

  sorry, variable 'rstchown' is not defined in the 'kernel'

  This parameter has been replaced by the ZFS rstchown file system property and a general file system mount option. For more information, see Oracle Solaris 11.1 Administration: ZFS File Systems and mount(1M).

• Oracle Solaris 11: The following system configuration parameters that were previously configured by editing files in the /etc/default directory have changed to SMF services:

  • autofs

  • init

  • kbd

  • nfs

  For information about changing SMF service properties, see Chapter 6, System Facility Parameters.

• Oracle Solaris 11: The ipadm command replaces the ndd command for setting network properties. TCP, IP, UDP, and SCTP properties are set as follows:

  ipadm set-prop -p parameter ip|ipv4|ipv6|tcp|udp|sctp

  In addition, most of the network tunable names have changed slightly to correlate better with the ipadm format.

  For more information, see Overview of Tuning IP Suite Parameters.

• Oracle Solaris 11: This release includes the disp_rechoose_interval parameter. For more information, see disp_rechoose_interval.

• Oracle Solaris 11: This release includes the ngroups_max parameter description. For more information, see ngroups_max.

• Oracle Solaris 11: This release includes the zfs_arc_min and zfs_arc_max parameter descriptions. For more information, see zfs_arc_min and zfs_arc_max.

• Oracle Solaris 11: This release includes several igb and ixgbe network driver parameters. For more information, see igb Parameters and ixgbe Parameters.

• Oracle Solaris 11: This release includes the ddi_msix_alloc_limit parameter that can be used to increase the number of MSI-X interrupts that a device instance can allocate. For more information, see ddi_msix_alloc_limit.

• Oracle Solaris 11: This release includes the kmem_stackinfo parameter, which can be enabled to monitor kernel thread stack usage. For more information, see kmem_stackinfo.

• Oracle Solaris 11: Memory locality group parameters are provided in this release. For more information about these parameters, see Locality Group Parameters.