K 10
svn:author
V 5
gibbs
K 8
svn:date
V 27
2011-08-16T23:47:53.421205Z
K 7
svn:log
V 2285
Add ZFSD, a ZFS fault management daemon.  This daemon has the following
features:

 o When a vdev for an active pool is inserted into the system, it will
   re-integrate it with the pool.
 o When an unlabeled or inactive disk is inserted into the same physical
   location as a missing member of a pool with the "autoreplace" attribute
   set, the inserted disk will be used to replace the missing disk.
 o When the cumulative soft-error count for a vdev exceeds 50 errors, the
   vdev will be marked degraded, alerting users to a potential problem.
   The error counts are persisted across reboots.

The daemon is written to be easily extended for more advanced fault
management policies and to handle new features such as spare pool
management.

cddl/sbin/zfsd/zpool_list.cc:
cddl/sbin/zfsd/zpool_list.h:
	ZpoolList is a standard container allowing filtering and
	iteration of imported ZFS pool information.

cddl/sbin/zfsd/callout.cc:
cddl/sbin/zfsd/callout.h:
	Timer services built on top of the POSIX interval timer API.

cddl/sbin/zfsd/vdev.cc:
cddl/sbin/zfsd/vdev.h:
	Wrapper class used to provide easy access to Vdev nvlist data.

cddl/sbin/zfsd/zfsd.cc:
cddl/sbin/zfsd/zfsd.h:
	Daemon main, devctl socket handling, and global application state
	exported through the ZfsDaemon singleton.

cddl/sbin/zfsd/case_file.cc:
cddl/sbin/zfsd/case_file.h:
	CaseFile objects aggregate vdev faults that may require ZFSD action
	in order to maintain the health of a ZFS pool.  They also handle
	serialization/deserialization of fault data to persistent
	storage.

cddl/sbin/zfsd/vdev_iterator.cc:
cddl/sbin/zfsd/vdev_iterator.h:
	Helper class for traversing and finding vdev objects within a
	pool configuration.

cddl/sbin/zfsd/dev_ctl_event.cc:
cddl/sbin/zfsd/dev_ctl_event.h:
	Class hierarchy used to express events received via the devctl API.

cddl/sbin/zfsd/zfsd_exception.cc:
cddl/sbin/zfsd/zfsd_exception.h:
	Definition of exceptions explicitly thrown by ZFSD.

cddl/sbin/zfsd/Makefile:
cddl/sbin/Makefile:
	Add zfsd to the build.

etc/rc.d/zfsd:
	Rc script for ZFSD.

etc/defaults/rc.conf:
	ZFSD defaults, just like ZFS, to being disabled.

etc/mtree/BSD.root.dist:
	Create the etc/zfs/cases directory used to store persistent
	fault data.

Sponsored by:	Spectra Logic Corporation

END