7a0c41d5d7
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
135 lines
3.5 KiB
C++
135 lines
3.5 KiB
C++
/*-
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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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/**
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* \file zfsd_exception
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*
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* Implementation of the ZfsdException 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 <syslog.h>
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#include <string>
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#include <list>
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#include <sstream>
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#include <devdctl/exception.h>
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#include <devdctl/guid.h>
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#include <libzfs.h>
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#include "vdev.h"
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#include "zfsd_exception.h"
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__FBSDID("$FreeBSD$");
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/*============================ Namespace Control =============================*/
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using std::endl;
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using std::string;
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using std::stringstream;
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/*=========================== Class Implementations ==========================*/
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/*------------------------------- ZfsdException ------------------------------*/
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ZfsdException::ZfsdException(const char *fmt, ...)
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: DevdCtl::Exception(),
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m_poolConfig(NULL),
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m_vdevConfig(NULL)
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{
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va_list ap;
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va_start(ap, fmt);
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FormatLog(fmt, ap);
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va_end(ap);
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}
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ZfsdException::ZfsdException(zpool_handle_t *pool, const char *fmt, ...)
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: DevdCtl::Exception(),
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m_poolConfig(zpool_get_config(pool, NULL)),
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m_vdevConfig(NULL)
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{
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va_list ap;
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va_start(ap, fmt);
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FormatLog(fmt, ap);
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va_end(ap);
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}
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ZfsdException::ZfsdException(nvlist_t *poolConfig, const char *fmt, ...)
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: DevdCtl::Exception(),
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m_poolConfig(poolConfig),
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m_vdevConfig(NULL)
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{
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va_list ap;
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va_start(ap, fmt);
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FormatLog(fmt, ap);
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va_end(ap);
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}
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void
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ZfsdException::Log() const
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{
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stringstream output;
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if (m_poolConfig != NULL) {
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output << "Pool ";
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char *poolName;
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if (nvlist_lookup_string(m_poolConfig, ZPOOL_CONFIG_POOL_NAME,
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&poolName) == 0)
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output << poolName;
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else
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output << "Unknown";
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output << ": ";
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}
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if (m_vdevConfig != NULL) {
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if (m_poolConfig != NULL) {
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Vdev vdev(m_poolConfig, m_vdevConfig);
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output << "Vdev " << vdev.GUID() << ": ";
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} else {
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Vdev vdev(m_vdevConfig);
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output << "Pool " << vdev.PoolGUID() << ": ";
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output << "Vdev " << vdev.GUID() << ": ";
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}
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}
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output << m_log << endl;
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syslog(LOG_ERR, "%s", output.str().c_str());
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}
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