1. Oracle Solaris 11.4 Tunable Parameters Reference Manual
  2. Oracle Solaris Kernel Tunable Parameters
  3. General Driver Parameters
  4. SPARC: dax_stats_flags Flag

SPARC: dax_stats_flags Flag

Description

This parameter controls what dax kstats are collected by the dax driver. This parameter can be set through the /etc/system.d directory. See /etc/system.d/ Directory Files for more information. Alternatively, you can also use the mdb --kernel -w --unsafe-write-access command. To read the parameter's current value, use the mdb --kernel --unsafe-io-access dax_stats_flags/D. For information about the mdb --kernel -w --unsafe-write-access and mdb --kernel --unsafe-io-access commands, see kmdb Debugger Entry in Oracle Solaris Modular Debugger Guide and the mdb(1) man page. Note that you should use the ‐-kernel option instead of the obsolescent ‐k option.

Data Type

Unsigned Integer

Default

1

Range

Possible Values

  • 1 – dax unit statistics collection only, excluding queue and CPU statistics.

  • 2 – dax queue and dax CPU statistics collection. This setting is not recommended because collecting queue and CPU statistics can have an impact on performance.

  • 3 – dax unit, queue and CPU statistics collection

Dynamice?

No

Validation

None

When to Change

When dax queue and or dax cpu statistics are needed.

Commitment Level

Unstable