Commit Graph

20 Commits

Author SHA1 Message Date
uqs
392b002279 Initialize variables before usage.
Found by:	clang static analyzer
Found by:	Coverity Prevent[tm] (CID 7736, 7760)
2010-06-11 17:02:57 +00:00
lulf
7afe3d9288 - Make function of finding an available drive name a macro.
- Move check of /dev/ prefix and copy into a function to save code duplication.
  This also fixes a bug where the /dev/ prefix could not be used when creating
  volumes on the command line.

Tested by:	Niclas Zeising <niclas.zeising - at - gmail.com>
2010-03-03 21:27:54 +00:00
ru
763b9ae1f8 Switch the default WARNS level for sbin/ to 6.
Submitted by:	Ulrich Spörlein
2009-10-19 16:00:24 +00:00
trhodes
bd2f895f38 Bump doc date for previous changes. 2009-04-11 08:49:15 +00:00
lulf
235bd13b0c - Better wording in comment.
Suggested by:	Christoph Mallon <christoph.mallon - at - gmx.de>
2009-04-10 11:15:34 +00:00
lulf
cd9a5afff5 - Implement the grow command to make it easier for users to extend plexes
without having to understand all gvinum internals.
- Document the grow command in the manpage and update examples to use the
  command where possible.
2009-04-10 10:12:09 +00:00
lulf
e13cab7798 - Move logic for finding a unique drive name into its own routine for future
code reuse.
2009-04-10 09:13:58 +00:00
lulf
62687638df - Move out allocation part of different gvinum objects into its own routine and
make use of it in the gvinum userland code.
2009-04-10 08:50:14 +00:00
lulf
14e3eb7296 Import the gvinum work that have been done during and after Summer of Code 2007.
The work have been under testing and fixing since then, and it is mature enough
to be put into HEAD for further testing.

A lot have changed in this time, and here are the most important:
- Gvinum now uses one single workerthread instead of one thread for each
  volume and each plex. The reason for this is that the previous scheme was
  very complex, and was the cause of many of the bugs discovered in gvinum.
  Instead, gvinum now uses one worker thread with an event queue, quite
  similar to what used in gmirror.
- The rebuild/grow/initialize/parity check routines no longer runs in
  separate threads, but are run as regular I/O requests with special flags.
  This made it easier to support mounted growing and parity rebuild.
- Support for growing striped and raid5-plexes, meaning that one can extend the
  volumes for these plex types in addition to the concat type. Also works while
  the volume is mounted.
- Implementation of many of the missing commands from the old vinum:
  attach/detach, start (was partially implemented), stop (was partially
  implemented), concat, mirror, stripe, raid5 (shortcuts for creating volumes
  with one plex of these organizations).
- The parity check and rebuild no longer goes between userland/kernel, meaning
  that the gvinum command will not stay and wait forever for the rebuild to
  finish. You can instead watch the status with the list command.
- Many problems with gvinum have been reported since 5.x, and some has been hard
  to fix due to the complicated architecture. Hopefully, it should be more
  stable and better handle edge cases that previously made gvinum crash.
- Failed drives no longer disappears entirely, but now leave behind a dummy
  drive that makes sure the original state is not forgotten in case the system
  is rebooted between drive failures/swaps.
- Update manpage to reflect new commands and extend it with some examples.

Sponsored by:   Google Summer of Code 2007
Mentored by:    le
Tested by:      Rick C. Petty <rick-freebsd2008 -at- kiwi-computer.com>
2009-03-28 17:20:08 +00:00
ru
4d2cef92f3 Revise markup. 2006-09-30 11:02:17 +00:00
le
80efd8a6c8 Implement the 'resetconfig' command.
PR:            kern/94835
Submitted by:  Ulf Lilleengen <lulf@stud.ntnu.no>
2006-03-23 19:58:43 +00:00
le
4da7d685ab Fix whitespace issues.
Pointed out by:    joel@
2005-11-20 10:35:46 +00:00
le
dccc51c176 Finally bring in what was produced during Google SoC 2005:
Add functions to rename objects and to move a subdisk from one drive
to another.

Add manual page (finally).

Bring up-to-date the online help.

Obtained from:  Chris Jones <chris.jones@ualberta.ca>
Sponsored by:   Google Summer of Code 2005
MFC in:         1 week
2005-11-19 20:26:52 +00:00
le
6675921351 Clean up.
Remove unused functions.

Reduce indentation level by reverting the logic of the enclosing
conditional statement.
2005-09-12 14:31:49 +00:00
ru
cec60429bb Start the dreaded NOFOO -> NO_FOO conversion.
OK'ed by:	core
2004-12-21 08:47:35 +00:00
le
c2bd948f68 Implement 'setstate' to allow setting the state of drives and subdisks
for debugging and emergency purposes.
2004-11-26 12:31:36 +00:00
le
e257308b07 Implement checkparity/rebuildparity. 2004-11-26 12:01:00 +00:00
ru
5db2b9d5b3 For variables that are only checked with defined(), don't provide
any fake value.
2004-10-24 15:33:08 +00:00
le
072b47a345 Allow 'create <filename>'. 2004-08-04 00:23:00 +00:00
le
74769ce0e6 Add gvinum, the geom_vinum userland tool. 2004-06-12 21:22:47 +00:00