Viewing: lctl-conf_param.8
.TH LCTL-CONF_PARAM 8 2026-02-26 Lustre "Lustre Configuration Utilities"
.SH NAME
lctl-conf_param \- Lustre filesystem conf_param compatibility notes
.SH SYNOPSIS
.SY "lctl conf_param"
.RB [ -d ]
.IR TARGET . PARAMETER = VALUE
.YS
.SH DESCRIPTION
.B lctl conf_param
is deprecated in favor of
.B lctl set_param -P
for persistent configuration. However, there are still specific cases where
.B conf_param
is required or remains the only reliable mechanism.
.SH WHEN conf_param IS STILL NEEDED
.TP
.B sptlrpc flavor rules
Persistent sptlrpc rules are still handled through the conf_param path, and
.B set_param -P
does not reliably propagate these rules to clients. Use
.B conf_param
for sptlrpc flavor configuration, for example:
.RS
.EX
# lctl conf_param testfs.srpc.flavor.tcp1=ska
# lctl conf_param testfs.srpc.flavor.o2ib0=ska
# lctl conf_param testfs.srpc.flavor.default=skpi
.EE
.RE
.SH AVAILABILITY
.B lctl conf_param
command was added in Lustre 1.4.0 and was deprecated in 2.5.0.
.SH SEE ALSO
.BR lustre (7),
.BR lctl (8),
.BR lctl-set_param (8)
