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Document sysctls variables used by GEOM_STRIPE class.

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Submitted by:	simon
This commit is contained in:
Pawel Jakub Dawidek 2004-07-13 11:28:40 +00:00
parent 71df072547
commit 11eeab06ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=132096
1 changed files with 37 additions and 0 deletions
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37
sbin/geom/class/stripe/gstripe.8
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@ -141,6 +141,41 @@ Specifies size of stripe block.
.It Fl v
Be more verbose.
.El
.Sh SYSCTL VARIABLES
The following
.Xr sysctl 8
variables can be used to control the behavior of
.Nm .
The default value is shown next to each variable.
.Bl -tag -width indent
.It Va kern.geom.stripe.debug : No 0
Debug level of the
.Nm .
This can be set to a number between 0 and 3, both included.
If set to 0 minimal debug information is printed, and if set to 3 the
maximum amount of debug information in printed.
.It Va kern.geom.stripe.fast : No 1
If set to a non-zero value enable
.Dq "fast mode"
instead of the normal
.Dq "economic mode" .
Compared to
.Dq "economic mode"
.Dq "fast mode"
uses more memory, but it is much faster for smaller stripe sizes.
If enough memory cannot be allocated
.Nm
will fall back to
.Dq "economic mode" .
.It Va kern.geom.stripe.maxmem : No 1310720
Maximum amount of memory that can be consumed by
.Dq "fast mode"
(in bytes).
This
.Xr sysctl 8
variable is read-only and can only be set as a tunable in
.Xr loader.conf 5 .
.El
.Sh EXAMPLES
The following example shows how to set up striped device from four disks
for automatic configuration, create a file system on it, and mount it:
@ -157,9 +192,11 @@ gstripe unload
Exit status is 0 on success, and 1 if the command fails.
.Sh SEE ALSO
.Xr geom 4 ,
.Xr loader.conf 5 ,
.Xr geom 8 ,
.Xr mount 8 ,
.Xr newfs 8 ,
.Xr sysctl 8 ,
.Xr umount 8 ,
.Xr vinum 8
.Sh HISTORY