diff options
Diffstat (limited to 'man/man5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 2f87f114c..d23e8022a 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -137,6 +137,18 @@ Default value: \fB8,388,608\fR. .sp .ne 2 .na +\fBmetaslab_bias_enabled\fR (int) +.ad +.RS 12n +Enable metaslab group biasing based on its vdev's over- or under-utilization +relative to the pool. +.sp +Use \fB1\fR for yes (default) and \fB0\fR for no. +.RE + +.sp +.ne 2 +.na \fBmetaslab_debug_load\fR (int) .ad .RS 12n @@ -159,6 +171,41 @@ Use \fB1\fR for yes and \fB0\fR for no (default). .sp .ne 2 .na +\fBmetaslab_fragmentation_factor_enabled\fR (int) +.ad +.RS 12n +Enable use of the fragmentation metric in computing metaslab weights. +.sp +Use \fB1\fR for yes (default) and \fB0\fR for no. +.RE + +.sp +.ne 2 +.na +\fBmetaslab_preload_enabled\fR (int) +.ad +.RS 12n +Enable metaslab group preloading. +.sp +Use \fB1\fR for yes (default) and \fB0\fR for no. +.RE + +.sp +.ne 2 +.na +\fBmetaslab_lba_weighting_enabled\fR (int) +.ad +.RS 12n +Give more weight to metaslabs with lower LBAs, assuming they have +greater bandwidth as is typically the case on a modern constant +angular velocity disk drive. +.sp +Use \fB1\fR for yes (default) and \fB0\fR for no. +.RE + +.sp +.ne 2 +.na \fBspa_config_path\fR (charp) .ad .RS 12n @@ -769,6 +816,35 @@ Use \fB1\fR for yes and \fB0\fR for no (default). .sp .ne 2 .na +\fBzfs_metaslab_fragmentation_threshold\fR (int) +.ad +.RS 12n +Allow metaslabs to keep their active state as long as their fragmentation +percentage is less than or equal to this value. An active metaslab that +exceeds this threshold will no longer keep its active status allowing +better metaslabs to be selected. +.sp +Default value: \fB70\fR. +.RE + +.sp +.ne 2 +.na +\fBzfs_mg_fragmentation_threshold\fR (int) +.ad +.RS 12n +Metaslab groups are considered eligible for allocations if their +fragmenation metric (measured as a percentage) is less than or equal to +this value. If a metaslab group exceeds this threshold then it will be +skipped unless all metaslab groups within the metaslab class have also +crossed this threshold. +.sp +Default value: \fB85\fR. +.RE + +.sp +.ne 2 +.na \fBzfs_mg_noalloc_threshold\fR (int) .ad .RS 12n |