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Diffstat (limited to 'man/man5/zfs-module-parameters.5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 4bbfbf512..359e9f72f 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -948,6 +948,24 @@ Default value: \fB32,768\fR. .sp .ne 2 .na +\fBzfs_max_recordsize\fR (int) +.ad +.RS 12n +We currently support block sizes from 512 bytes to 16MB. The benefits of +larger blocks, and thus larger IO, need to be weighed against the cost of +COWing a giant block to modify one byte. Additionally, very large blocks +can have an impact on i/o latency, and also potentially on the memory +allocator. Therefore, we do not allow the recordsize to be set larger than +zfs_max_recordsize (default 1MB). Larger blocks can be created by changing +this tunable, and pools with larger blocks can always be imported and used, +regardless of this setting. +.sp +Default value: \fB1,048,576\fR. +.RE + +.sp +.ne 2 +.na \fBzfs_mdcomp_disable\fR (int) .ad .RS 12n |