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author | pjd <pjd@FreeBSD.org> | 2008-11-17 20:49:29 +0000 |
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committer | pjd <pjd@FreeBSD.org> | 2008-11-17 20:49:29 +0000 |
commit | bbe899b96e388a8b82439f81ed3707e0d9c6070d (patch) | |
tree | 81b89fa4ac6467771d5aa291a97f4665981a6108 /cddl/contrib/opensolaris/cmd/zdb/zdb.8 | |
parent | d2f579595c362ce27b4d87e2c40e1c4e09b929e3 (diff) | |
download | FreeBSD-src-bbe899b96e388a8b82439f81ed3707e0d9c6070d.zip FreeBSD-src-bbe899b96e388a8b82439f81ed3707e0d9c6070d.tar.gz |
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
Diffstat (limited to 'cddl/contrib/opensolaris/cmd/zdb/zdb.8')
-rw-r--r-- | cddl/contrib/opensolaris/cmd/zdb/zdb.8 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/cmd/zdb/zdb.8 b/cddl/contrib/opensolaris/cmd/zdb/zdb.8 index 87913f6..c9d5aed 100644 --- a/cddl/contrib/opensolaris/cmd/zdb/zdb.8 +++ b/cddl/contrib/opensolaris/cmd/zdb/zdb.8 @@ -28,13 +28,17 @@ zdb \- ZFS debugger .fi .SH DESCRIPTION +.sp .LP The \fBzdb\fR command is used by support engineers to diagnose failures and gather statistics. Since the \fBZFS\fR file system is always consistent on disk and is self-repairing, \fBzdb\fR should only be run under the direction by a support engineer. +.sp .LP If no arguments are specified, \fBzdb\fR, performs basic consistency checks on the pool and associated datasets, and report any problems detected. +.sp .LP Any options supported by this command are internal to Sun and subject to change at any time. .SH EXIT STATUS +.sp .LP The following exit values are returned: .sp @@ -71,6 +75,7 @@ Invalid command line options were specified. .RE .SH ATTRIBUTES +.sp .LP See \fBattributes\fR(5) for descriptions of the following attributes: .sp @@ -89,5 +94,6 @@ Interface StabilityUnstable .TE .SH SEE ALSO +.sp .LP \fBzfs\fR(1M), \fBzpool\fR(1M), \fBattributes\fR(5) |