diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c')
| -rw-r--r-- | cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c | 511 |
1 files changed, 0 insertions, 511 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c deleted file mode 100644 index d32662022cf54..0000000000000 --- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_status.c +++ /dev/null @@ -1,511 +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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2012 by Delphix. All rights reserved. - * Copyright (c) 2013 Steven Hartland. All rights reserved. - */ - -/* - * 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 describes 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" -#include "zfeature_common.h" - -/* - * Message ID table. This must be kept 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", /* ZPOOL_STATUS_CORRUPT_CACHE */ - "ZFS-8000-2Q", /* ZPOOL_STATUS_MISSING_DEV_R */ - "ZFS-8000-3C", /* ZPOOL_STATUS_MISSING_DEV_NR */ - "ZFS-8000-4J", /* ZPOOL_STATUS_CORRUPT_LABEL_R */ - "ZFS-8000-5E", /* ZPOOL_STATUS_CORRUPT_LABEL_NR */ - "ZFS-8000-6X", /* ZPOOL_STATUS_BAD_GUID_SUM */ - "ZFS-8000-72", /* ZPOOL_STATUS_CORRUPT_POOL */ - "ZFS-8000-8A", /* ZPOOL_STATUS_CORRUPT_DATA */ - "ZFS-8000-9P", /* ZPOOL_STATUS_FAILING_DEV */ - "ZFS-8000-A5", /* ZPOOL_STATUS_VERSION_NEWER */ - "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_MISMATCH */ - "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_ACTIVE */ - "ZFS-8000-EY", /* ZPOOL_STATUS_HOSTID_REQUIRED */ - "ZFS-8000-HC", /* ZPOOL_STATUS_IO_FAILURE_WAIT */ - "ZFS-8000-JQ", /* ZPOOL_STATUS_IO_FAILURE_CONTINUE */ - "ZFS-8000-MM", /* ZPOOL_STATUS_IO_FAILURE_MMP */ - "ZFS-8000-K4", /* ZPOOL_STATUS_BAD_LOG */ - /* - * The following results have no message ID. - * ZPOOL_STATUS_UNSUP_FEAT_READ - * ZPOOL_STATUS_UNSUP_FEAT_WRITE - * ZPOOL_STATUS_FAULTED_DEV_R - * ZPOOL_STATUS_FAULTED_DEV_NR - * ZPOOL_STATUS_VERSION_OLDER - * ZPOOL_STATUS_FEAT_DISABLED - * ZPOOL_STATUS_RESILVERING - * ZPOOL_STATUS_OFFLINE_DEV - * ZPOOL_STATUS_REMOVED_DEV - * ZPOOL_STATUS_OK - */ -}; - -#define NMSGID (sizeof (zfs_msgid_table) / sizeof (zfs_msgid_table[0])) - -/* ARGSUSED */ -static int -vdev_missing(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_OPEN_FAILED); -} - -/* ARGSUSED */ -static int -vdev_faulted(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_FAULTED); -} - -/* ARGSUSED */ -static int -vdev_errors(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_DEGRADED || - vs->vs_read_errors != 0 || vs->vs_write_errors != 0 || - vs->vs_checksum_errors != 0); -} - -/* ARGSUSED */ -static int -vdev_broken(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_CANT_OPEN); -} - -/* ARGSUSED */ -static int -vdev_offlined(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_OFFLINE); -} - -/* ARGSUSED */ -static int -vdev_removed(vdev_stat_t *vs, uint_t vsc) -{ - return (vs->vs_state == VDEV_STATE_REMOVED); -} - -static int -vdev_non_native_ashift(vdev_stat_t *vs, uint_t vsc) -{ - return (VDEV_STAT_VALID(vs_physical_ashift, vsc) && - vs->vs_configured_ashift < vs->vs_physical_ashift); -} - -/* - * 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)(vdev_stat_t *, uint_t), - boolean_t ignore_replacing) -{ - nvlist_t **child; - vdev_stat_t *vs; - uint_t c, vsc, children; - - /* - * 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. - */ - if (ignore_replacing == B_TRUE) { - char *type; - - 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, ignore_replacing)) - return (B_TRUE); - } else { - verify(nvlist_lookup_uint64_array(vdev, ZPOOL_CONFIG_VDEV_STATS, - (uint64_t **)&vs, &vsc) == 0); - - if (func(vs, vsc) != 0) - return (B_TRUE); - } - - /* - * Check any L2 cache devs - */ - if (nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_L2CACHE, &child, - &children) == 0) { - for (c = 0; c < children; c++) - if (find_vdev_problem(child[c], func, ignore_replacing)) - 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 faulted or missing devices in a non-replicated config - * - Check for any data errors - * - Check for any faulted or 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; - pool_scan_stat_t *ps = NULL; - uint_t vsc, psc; - uint64_t nerr; - uint64_t version; - uint64_t stateval; - uint64_t suspended; - uint64_t hostid = 0; - unsigned long system_hostid = get_system_hostid(); - - 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_VDEV_STATS, - (uint64_t **)&vs, &vsc) == 0); - verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, - &stateval) == 0); - - /* - * Currently resilvering a vdev - */ - (void) nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_SCAN_STATS, - (uint64_t **)&ps, &psc); - if (ps != NULL && ps->pss_func == POOL_SCAN_RESILVER && - ps->pss_state == DSS_SCANNING) - return (ZPOOL_STATUS_RESILVERING); - - /* - * The multihost property is set and the pool may be active. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_ACTIVE) { - mmp_state_t mmp_state; - nvlist_t *nvinfo; - - nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO); - mmp_state = fnvlist_lookup_uint64(nvinfo, - ZPOOL_CONFIG_MMP_STATE); - - if (mmp_state == MMP_STATE_ACTIVE) - return (ZPOOL_STATUS_HOSTID_ACTIVE); - else if (mmp_state == MMP_STATE_NO_HOSTID) - return (ZPOOL_STATUS_HOSTID_REQUIRED); - else - return (ZPOOL_STATUS_HOSTID_MISMATCH); - } - - /* - * Pool last accessed by another system. - */ - (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid); - if (hostid != 0 && (unsigned long)hostid != system_hostid && - 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); - - /* - * Unsupported feature(s). - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_UNSUP_FEAT) { - nvlist_t *nvinfo; - - verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, - &nvinfo) == 0); - if (nvlist_exists(nvinfo, ZPOOL_CONFIG_CAN_RDONLY)) - return (ZPOOL_STATUS_UNSUP_FEAT_WRITE); - return (ZPOOL_STATUS_UNSUP_FEAT_READ); - } - - /* - * 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); - - /* - * Check whether the pool has suspended. - */ - if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_SUSPENDED, - &suspended) == 0) { - uint64_t reason; - - if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_SUSPENDED_REASON, - &reason) == 0 && reason == ZIO_SUSPEND_MMP) - return (ZPOOL_STATUS_IO_FAILURE_MMP); - - if (suspended == ZIO_FAILURE_MODE_CONTINUE) - return (ZPOOL_STATUS_IO_FAILURE_CONTINUE); - return (ZPOOL_STATUS_IO_FAILURE_WAIT); - } - - /* - * Could not read a log. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - vs->vs_aux == VDEV_AUX_BAD_LOG) { - return (ZPOOL_STATUS_BAD_LOG); - } - - /* - * Bad devices in non-replicated config. - */ - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - find_vdev_problem(nvroot, vdev_faulted, B_TRUE)) - return (ZPOOL_STATUS_FAULTED_DEV_NR); - - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - find_vdev_problem(nvroot, vdev_missing, B_TRUE)) - return (ZPOOL_STATUS_MISSING_DEV_NR); - - if (vs->vs_state == VDEV_STATE_CANT_OPEN && - find_vdev_problem(nvroot, vdev_broken, B_TRUE)) - 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_faulted, B_TRUE)) - return (ZPOOL_STATUS_FAULTED_DEV_R); - if (find_vdev_problem(nvroot, vdev_missing, B_TRUE)) - return (ZPOOL_STATUS_MISSING_DEV_R); - if (find_vdev_problem(nvroot, vdev_broken, B_TRUE)) - return (ZPOOL_STATUS_CORRUPT_LABEL_R); - - /* - * Devices with errors - */ - if (!isimport && find_vdev_problem(nvroot, vdev_errors, B_TRUE)) - return (ZPOOL_STATUS_FAILING_DEV); - - /* - * Offlined devices - */ - if (find_vdev_problem(nvroot, vdev_offlined, B_TRUE)) - return (ZPOOL_STATUS_OFFLINE_DEV); - - /* - * Removed device - */ - if (find_vdev_problem(nvroot, vdev_removed, B_TRUE)) - return (ZPOOL_STATUS_REMOVED_DEV); - - /* - * Suboptimal, but usable, ashift configuration. - */ - if (find_vdev_problem(nvroot, vdev_non_native_ashift, B_FALSE)) - return (ZPOOL_STATUS_NON_NATIVE_ASHIFT); - - /* - * Outdated, but usable, version - */ - if (SPA_VERSION_IS_SUPPORTED(version) && version != SPA_VERSION) - return (ZPOOL_STATUS_VERSION_OLDER); - - /* - * Usable pool with disabled features - */ - if (version >= SPA_VERSION_FEATURES) { - int i; - nvlist_t *feat; - - if (isimport) { - feat = fnvlist_lookup_nvlist(config, - ZPOOL_CONFIG_LOAD_INFO); - if (nvlist_exists(feat, ZPOOL_CONFIG_ENABLED_FEAT)) - feat = fnvlist_lookup_nvlist(feat, - ZPOOL_CONFIG_ENABLED_FEAT); - } else { - feat = fnvlist_lookup_nvlist(config, - ZPOOL_CONFIG_FEATURE_STATS); - } - - for (i = 0; i < SPA_FEATURES; i++) { - zfeature_info_t *fi = &spa_feature_table[i]; - if (!nvlist_exists(feat, fi->fi_guid)) - return (ZPOOL_STATUS_FEAT_DISABLED); - } - } - - 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[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); -} - -static void -dump_ddt_stat(const ddt_stat_t *dds, int h) -{ - char refcnt[6]; - char blocks[6], lsize[6], psize[6], dsize[6]; - char ref_blocks[6], ref_lsize[6], ref_psize[6], ref_dsize[6]; - - if (dds == NULL || dds->dds_blocks == 0) - return; - - if (h == -1) - (void) strcpy(refcnt, "Total"); - else - zfs_nicenum(1ULL << h, refcnt, sizeof (refcnt)); - - zfs_nicenum(dds->dds_blocks, blocks, sizeof (blocks)); - zfs_nicenum(dds->dds_lsize, lsize, sizeof (lsize)); - zfs_nicenum(dds->dds_psize, psize, sizeof (psize)); - zfs_nicenum(dds->dds_dsize, dsize, sizeof (dsize)); - zfs_nicenum(dds->dds_ref_blocks, ref_blocks, sizeof (ref_blocks)); - zfs_nicenum(dds->dds_ref_lsize, ref_lsize, sizeof (ref_lsize)); - zfs_nicenum(dds->dds_ref_psize, ref_psize, sizeof (ref_psize)); - zfs_nicenum(dds->dds_ref_dsize, ref_dsize, sizeof (ref_dsize)); - - (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", - refcnt, - blocks, lsize, psize, dsize, - ref_blocks, ref_lsize, ref_psize, ref_dsize); -} - -/* - * Print the DDT histogram and the column totals. - */ -void -zpool_dump_ddt(const ddt_stat_t *dds_total, const ddt_histogram_t *ddh) -{ - int h; - - (void) printf("\n"); - - (void) printf("bucket " - " allocated " - " referenced \n"); - (void) printf("______ " - "______________________________ " - "______________________________\n"); - - (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", - "refcnt", - "blocks", "LSIZE", "PSIZE", "DSIZE", - "blocks", "LSIZE", "PSIZE", "DSIZE"); - - (void) printf("%6s %6s %5s %5s %5s %6s %5s %5s %5s\n", - "------", - "------", "-----", "-----", "-----", - "------", "-----", "-----", "-----"); - - for (h = 0; h < 64; h++) - dump_ddt_stat(&ddh->ddh_stat[h], h); - - dump_ddt_stat(dds_total, -1); - - (void) printf("\n"); -} |