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Diffstat (limited to 'man/man5/zfs-module-parameters.5')
| -rw-r--r-- | man/man5/zfs-module-parameters.5 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/man/man5/zfs-module-parameters.5 b/man/man5/zfs-module-parameters.5 index 6d4a8c304..015ab0186 100644 --- a/man/man5/zfs-module-parameters.5 +++ b/man/man5/zfs-module-parameters.5 @@ -1631,6 +1631,21 @@ Max number of blocks to discard at once Default value: \fB16,384\fR. .RE +.sp +.ne 2 +.na +\fBzvol_prefetch_bytes\fR (uint) +.ad +.RS 12n +When adding a zvol to the system prefetch \fBzvol_prefetch_bytes\fR +from the start and end of the volume. Prefetching these regions +of the volume is desirable because they are likely to be accessed +immediately by \fBblkid(8)\fR or by the kernel scanning for a partition +table. +.sp +Default value: \fB131,072\fR. +.RE + .SH ZFS I/O SCHEDULER ZFS issues I/O operations to leaf vdevs to satisfy and complete I/Os. The I/O scheduler determines when and in what order those operations are |