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OpenZFS 9426 - metaslab size can exceed offset addressable by spacemap

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Authored by: Don Brady <don.brady@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matt Ahrens <matt@delphix.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Dan McDonald <danmcd@joyent.com>

OpenZFS-issue: https://www.illumos.org/issues/9426
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/f1c88afb1
Closes #7700
This commit is contained in:
Don Brady
2017-08-11 15:28:17 -06:00
committed by Brian Behlendorf
parent e902ddb0f8
commit e4e94ca315
2 changed files with 67 additions and 28 deletions
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man/man5/zfs-module-parameters.5
+12 -1
View File
@@ -296,7 +296,7 @@ Use \fB1\fR for yes (default) and \fB0\fR for no.
\fBvdev_max_ms_count\fR (int)
.ad
.RS 12n
When a vdev is added, it will be divided into approximately (but no more than) this number of metaslabs.
When a vdev is added target this number of metaslabs per top-level vdev.
.sp
Default value: \fB200\fR.
.RE
@@ -312,6 +312,17 @@ Minimum number of metaslabs to create in a top-level vdev.
Default value: \fB16\fR.
.RE
.sp
.ne 2
.na
\fBvdev_ms_count_limit\fR (int)
.ad
.RS 12n
Practical upper limit of total metaslabs per top-level vdev.
.sp
Default value: \fB131,072\fR.
.RE
.sp
.ne 2
.na