Make zfs_special_class_metadata_reserve_pct into a parameter

[mirror_zfs.git] / man / man5 / zfs-module-parameters.5

diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5
index 5c49670f155a23dab73f1b98a02cb1054079b959..5bca12e06ea2bc26118e2701de3f9fe0f7fd21e7 100644 (file)
--- a/man/man5/zfs-module-parameters.5
+++ b/man/man5/zfs-module-parameters.5
@@ -2399,6 +2399,20 @@ vdev while discarding the checkpoint.
 Default value: \fB16,777,216\fR.
 .RE
 
+.sp
+.ne 2
+.na
+\fBzfs_special_class_metadata_reserve_pct\fR (int)
+.ad
+.RS 12n
+Only allow small data blocks to be allocated on the special and dedup vdev
+types when the available free space percentage on these vdevs exceeds this
+value. This ensures reserved space is available for pool meta data as the
+special vdevs approach capacity.
+.sp
+Default value: \fB25\fR.
+.RE
+
 .sp
 .ne 2
 .na