zfsd(8), the ZFS fault management daemon
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
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/*-
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* Copyright (c) 2011, 2012, 2013 Spectra Logic Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* Authors: Justin T. Gibbs (Spectra Logic Corporation)
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*
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* $FreeBSD$
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*/
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/**
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* \file vdev_iterator.cc
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*
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* Implementation of the VdevIterator class.
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*/
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#include <sys/cdefs.h>
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#include <sys/fs/zfs.h>
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#include <stdint.h>
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#include <syslog.h>
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#include <libzfs.h>
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#include <list>
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#include <string>
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#include <devdctl/exception.h>
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#include <devdctl/guid.h>
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#include "vdev.h"
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#include "vdev_iterator.h"
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#include "zfsd_exception.h"
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/*============================ Namespace Control =============================*/
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using DevdCtl::Guid;
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/*=========================== Class Implementations ==========================*/
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/*------------------------------- VdevIterator -------------------------------*/
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VdevIterator::VdevIterator(zpool_handle_t *pool)
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: m_poolConfig(zpool_get_config(pool, NULL))
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{
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Reset();
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}
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VdevIterator::VdevIterator(nvlist_t *poolConfig)
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: m_poolConfig(poolConfig)
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{
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Reset();
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}
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void
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VdevIterator::Reset()
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{
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nvlist_t *rootVdev;
|
2017-10-26 15:28:18 +00:00
|
|
|
nvlist **cache_child;
|
zfsd(8), the ZFS fault management daemon
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
|
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|
int result;
|
2017-10-26 15:28:18 +00:00
|
|
|
uint_t cache_children;
|
zfsd(8), the ZFS fault management daemon
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
|
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result = nvlist_lookup_nvlist(m_poolConfig,
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ZPOOL_CONFIG_VDEV_TREE,
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&rootVdev);
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if (result != 0)
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throw ZfsdException(m_poolConfig, "Unable to extract "
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"ZPOOL_CONFIG_VDEV_TREE from pool.");
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m_vdevQueue.assign(1, rootVdev);
|
2017-10-26 15:28:18 +00:00
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result = nvlist_lookup_nvlist_array(rootVdev,
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ZPOOL_CONFIG_L2CACHE,
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&cache_child,
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|
|
&cache_children);
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if (result == 0)
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for (uint_t c = 0; c < cache_children; c++)
|
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|
|
m_vdevQueue.push_back(cache_child[c]);
|
zfsd(8), the ZFS fault management daemon
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
nvlist_t *
|
|
|
|
VdevIterator::Next()
|
|
|
|
{
|
|
|
|
nvlist_t *vdevConfig;
|
|
|
|
|
|
|
|
if (m_vdevQueue.empty())
|
|
|
|
return (NULL);
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
nvlist_t **vdevChildren;
|
|
|
|
int result;
|
|
|
|
u_int numChildren;
|
|
|
|
|
|
|
|
vdevConfig = m_vdevQueue.front();
|
|
|
|
m_vdevQueue.pop_front();
|
|
|
|
|
|
|
|
/* Expand non-leaf vdevs. */
|
|
|
|
result = nvlist_lookup_nvlist_array(vdevConfig,
|
|
|
|
ZPOOL_CONFIG_CHILDREN,
|
|
|
|
&vdevChildren, &numChildren);
|
|
|
|
if (result != 0) {
|
|
|
|
/* leaf vdev */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Insert children at the head of the queue to effect a
|
|
|
|
* depth first traversal of the tree.
|
|
|
|
*/
|
|
|
|
m_vdevQueue.insert(m_vdevQueue.begin(), vdevChildren,
|
|
|
|
vdevChildren + numChildren);
|
2016-05-31 21:23:57 +00:00
|
|
|
}
|
zfsd(8), the ZFS fault management daemon
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
2016-05-28 17:43:40 +00:00
|
|
|
|
|
|
|
return (vdevConfig);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
VdevIterator::Each(VdevCallback_t *callBack, void *callBackArg)
|
|
|
|
{
|
|
|
|
nvlist_t *vdevConfig;
|
|
|
|
|
|
|
|
Reset();
|
|
|
|
while ((vdevConfig = Next()) != NULL) {
|
|
|
|
Vdev vdev(m_poolConfig, vdevConfig);
|
|
|
|
|
|
|
|
if (callBack(vdev, callBackArg))
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
nvlist_t *
|
|
|
|
VdevIterator::Find(Guid vdevGUID)
|
|
|
|
{
|
|
|
|
nvlist_t *vdevConfig;
|
|
|
|
|
|
|
|
Reset();
|
|
|
|
while ((vdevConfig = Next()) != NULL) {
|
|
|
|
Vdev vdev(m_poolConfig, vdevConfig);
|
|
|
|
|
|
|
|
if (vdev.GUID() == vdevGUID)
|
|
|
|
return (vdevConfig);
|
|
|
|
}
|
|
|
|
return (NULL);
|
|
|
|
}
|