sys_attrs_lsm - lsm subsystem attributes
This reference page lists and describes attributes for the
Logical Storage Manager (lsm) kernel subsystem. Refer to
sys_attrs(5) for an introduction to the topic of kernel
A value that enables (1) or disables (0) statistics
gathering by LSM software.
Default: 1 (enabled)
Disabling LSM statistics gathering is not recommended.
It provides a marginal performance improvement
that is useful only for certain types of
A value that sets (1) or unsets (0, the default)
reduced locking on multiple-CPU systems (such as a
GS1280) by reducing the need for certain spin locks
in the kernel. This results in less LSM kernel I/O
spinlock contention. Using this spin lock performance
feature reduces some of the debugging statistics
that are normally maintained.
When this attribute is set to 1, you cannot reduce
the number of daemons (with the voliod command) to
0, even with the force option. See voliod(8).
A value set by the subsystem software to indicate
whether the root (/) file system is on an LSM volume.
The following values are set by the subsystem:
If the root file is not on an LSM volume. If the
root file is on an LSM volume.
Do not modify the value for this attribute unless
instructed to do so by support personnel or by
patch kit instructions.
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