diff options
Diffstat (limited to 'contrib/opensolaris/lib/libzfs/common/libzfs_status.c')
| -rw-r--r-- | contrib/opensolaris/lib/libzfs/common/libzfs_status.c | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/contrib/opensolaris/lib/libzfs/common/libzfs_status.c b/contrib/opensolaris/lib/libzfs/common/libzfs_status.c deleted file mode 100644 index 3eba97a..0000000 --- a/contrib/opensolaris/lib/libzfs/common/libzfs_status.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -/* - * This file contains the functions which analyze the status of a pool. This - * include both the status of an active pool, as well as the status exported - * pools. Returns one of the ZPOOL_STATUS_* defines describing the status of - * the pool. This status is independent (to a certain degree) from the state of - * the pool. A pool's state descsribes only whether or not it is capable of - * providing the necessary fault tolerance for data. The status describes the - * overall status of devices. A pool that is online can still have a device - * that is experiencing errors. - * - * Only a subset of the possible faults can be detected using 'zpool status', - * and not all possible errors correspond to a FMA message ID. The explanation - * is left up to the caller, depending on whether it is a live pool or an - * import. - */ - -#include <libzfs.h> -#include <string.h> -#include <unistd.h> -#include "libzfs_impl.h" - -/* - * Message ID table. This must be kep in sync with the ZPOOL_STATUS_* defines - * in libzfs.h. Note that there are some status results which go past the end - * of this table, and hence have no associated message ID. - */ -static char *zfs_msgid_table[] = { - "ZFS-8000-14", - "ZFS-8000-2Q", - "ZFS-8000-3C", - "ZFS-8000-4J", - "ZFS-8000-5E", - "ZFS-8000-6X", - "ZFS-8000-72", - "ZFS-8000-8A", - "ZFS-8000-9P", - "ZFS-8000-A5", - "ZFS-8000-EY" -}; - -/* - * If the pool is active, a certain class of static errors is overridden by the - * faults as analayzed by FMA. These faults have separate knowledge articles, - * and the article referred to by 'zpool status' must match that indicated by - * the syslog error message. We override missing data as well as corrupt pool. - */ -static char *zfs_msgid_table_active[] = { - "ZFS-8000-14", - "ZFS-8000-D3", /* overridden */ - "ZFS-8000-D3", /* overridden */ - "ZFS-8000-4J", - "ZFS-8000-5E", - "ZFS-8000-6X", - "ZFS-8000-CS", /* overridden */ - "ZFS-8000-8A", - "ZFS-8000-9P", - "ZFS-8000-CS", /* overridden */ -}; - -#define NMSGID (sizeof (zfs_msgid_table) / sizeof (zfs_msgid_table[0])) - -/* ARGSUSED */ -static int -vdev_missing(uint64_t state, uint64_t aux, uint64_t errs) -{ - return (state == VDEV_STATE_CANT_OPEN && - aux == VDEV_AUX_OPEN_FAILED); -} - -/* ARGSUSED */ -static int -vdev_errors(uint64_t state, uint64_t aux, uint64_t errs) -{ - return (errs != 0); -} - -/* ARGSUSED */ -static int -vdev_broken(uint64_t state, uint64_t aux, uint64_t errs) -{ - return (state == VDEV_STATE_CANT_OPEN); -} - -/* ARGSUSED */ -static int -vdev_offlined(uint64_t state, uint64_t aux, uint64_t errs) -{ - return (state == VDEV_STATE_OFFLINE); -} - -/* - * Detect if any leaf devices that have seen errors or could not be opened. - */ -static boolean_t -find_vdev_problem(nvlist_t *vdev, int (*func)(uint64_t, uint64_t, uint64_t)) -{ - nvlist_t **child; - vdev_stat_t *vs; - uint_t c, children; - char *type; - - /* - * Ignore problems within a 'replacing' vdev, since we're presumably in - * the process of repairing any such errors, and don't want to call them - * out again. We'll pick up the fact that a resilver is happening - * later. - */ - verify(nvlist_lookup_string(vdev, ZPOOL_CONFIG_TYPE, &type) == 0); - if (strcmp(type, VDEV_TYPE_REPLACING) == 0) - return (B_FALSE); - - if (nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, &child, - &children) == 0) { - for (c = 0; c < children; c++) - if (find_vdev_problem(child[c], func)) - return (B_TRUE); - } else { - verify(nvlist_lookup_uint64_array(vdev, ZPOOL_CONFIG_STATS, - (uint64_t **)&vs, &c) == 0); - - if (func(vs->vs_state, vs->vs_aux, - vs->vs_read_errors + - vs->vs_write_errors + - vs->vs_checksum_errors)) - return (B_TRUE); - } - - return (B_FALSE); -} - -/* - * Active pool health status. - * - * To determine the status for a pool, we make several passes over the config, - * picking the most egregious error we find. In order of importance, we do the - * following: - * - * - Check for a complete and valid configuration - * - Look for any missing devices in a non-replicated config - * - Check for any data errors - * - Check for any missing devices in a replicated config - * - Look for any devices showing errors - * - Check for any resilvering devices - * - * There can obviously be multiple errors within a single pool, so this routine - * only picks the most damaging of all the current errors to report. - */ -static zpool_status_t -check_status(nvlist_t *config, boolean_t isimport) -{ - nvlist_t *nvroot; - vdev_stat_t *vs; - uint_t vsc; - uint64_t nerr; - uint64_t version; - uint64_t stateval; - uint64_t hostid = 0; - - verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, - &version) == 0); - verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, - &nvroot) == 0); - verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_STATS, - (uint64_t **)&vs, &vsc) == 0); - verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, - &stateval) == 0); - (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid); - - /* - * Pool last accessed by another system. - */ - if (hostid != 0 && (unsigned long)hostid != gethostid() && - stateval == POOL_STATE_ACTIVE) - return (ZPOOL_STATUS_HOSTID_MISMATCH); - - /* - * Newer on-disk version. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_VERSION_NEWER) - return (ZPOOL_STATUS_VERSION_NEWER); - - /* - * Check that the config is complete. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_BAD_GUID_SUM) - return (ZPOOL_STATUS_BAD_GUID_SUM); - - /* - * Missing devices in non-replicated config. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - find_vdev_problem(nvroot, vdev_missing)) - return (ZPOOL_STATUS_MISSING_DEV_NR); - - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - find_vdev_problem(nvroot, vdev_broken)) - return (ZPOOL_STATUS_CORRUPT_LABEL_NR); - - /* - * Corrupted pool metadata - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_CORRUPT_DATA) - return (ZPOOL_STATUS_CORRUPT_POOL); - - /* - * Persistent data errors. - */ - if (!isimport) { - if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT, - &nerr) == 0 && nerr != 0) - return (ZPOOL_STATUS_CORRUPT_DATA); - } - - /* - * Missing devices in a replicated config. - */ - if (find_vdev_problem(nvroot, vdev_missing)) - return (ZPOOL_STATUS_MISSING_DEV_R); - if (find_vdev_problem(nvroot, vdev_broken)) - return (ZPOOL_STATUS_CORRUPT_LABEL_R); - - /* - * Devices with errors - */ - if (!isimport && find_vdev_problem(nvroot, vdev_errors)) - return (ZPOOL_STATUS_FAILING_DEV); - - /* - * Offlined devices - */ - if (find_vdev_problem(nvroot, vdev_offlined)) - return (ZPOOL_STATUS_OFFLINE_DEV); - - /* - * Currently resilvering - */ - if (!vs->vs_scrub_complete && vs->vs_scrub_type == POOL_SCRUB_RESILVER) - return (ZPOOL_STATUS_RESILVERING); - - /* - * Outdated, but usable, version - */ - if (version < ZFS_VERSION) - return (ZPOOL_STATUS_VERSION_OLDER); - - return (ZPOOL_STATUS_OK); -} - -zpool_status_t -zpool_get_status(zpool_handle_t *zhp, char **msgid) -{ - zpool_status_t ret = check_status(zhp->zpool_config, B_FALSE); - - if (ret >= NMSGID) - *msgid = NULL; - else - *msgid = zfs_msgid_table_active[ret]; - - return (ret); -} - -zpool_status_t -zpool_import_status(nvlist_t *config, char **msgid) -{ - zpool_status_t ret = check_status(config, B_TRUE); - - if (ret >= NMSGID) - *msgid = NULL; - else - *msgid = zfs_msgid_table[ret]; - - return (ret); -} |
