1 /* 2 * GRUB -- GRand Unified Bootloader 3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 */ 19 20 /* 21 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 22 * Copyright (c) 2012 by Delphix. All rights reserved. 23 */ 24 25 #ifndef _SYS_FS_ZFS_H 26 #define _SYS_FS_ZFS_H 27 28 /* 29 * On-disk version number. 30 */ 31 #define SPA_VERSION_INITIAL 1ULL 32 #define SPA_VERSION_BEFORE_FEATURES 28ULL 33 #define SPA_VERSION 5000ULL 34 #define SPA_VERSION_FEATURES 5000ULL 35 36 #define SPA_VERSION_IS_SUPPORTED(v) \ 37 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \ 38 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION)) 39 40 /* 41 * The following are configuration names used in the nvlist describing a pool's 42 * configuration. 43 */ 44 #define ZPOOL_CONFIG_VERSION "version" 45 #define ZPOOL_CONFIG_POOL_NAME "name" 46 #define ZPOOL_CONFIG_POOL_STATE "state" 47 #define ZPOOL_CONFIG_POOL_TXG "txg" 48 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 49 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 50 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 51 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 52 #define ZPOOL_CONFIG_TYPE "type" 53 #define ZPOOL_CONFIG_CHILDREN "children" 54 #define ZPOOL_CONFIG_ID "id" 55 #define ZPOOL_CONFIG_GUID "guid" 56 #define ZPOOL_CONFIG_PATH "path" 57 #define ZPOOL_CONFIG_DEVID "devid" 58 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 59 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 60 #define ZPOOL_CONFIG_ASHIFT "ashift" 61 #define ZPOOL_CONFIG_ASIZE "asize" 62 #define ZPOOL_CONFIG_DTL "DTL" 63 #define ZPOOL_CONFIG_STATS "stats" 64 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 65 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 66 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 67 #define ZPOOL_CONFIG_SPARES "spares" 68 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 69 #define ZPOOL_CONFIG_NPARITY "nparity" 70 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 71 #define ZPOOL_CONFIG_L2CACHE "l2cache" 72 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 73 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 74 #define ZPOOL_CONFIG_IS_HOLE "is_hole" 75 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 76 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 77 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 78 #define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read" 79 /* 80 * The persistent vdev state is stored as separate values rather than a single 81 * 'vdev_state' entry. This is because a device can be in multiple states, such 82 * as offline and degraded. 83 */ 84 #define ZPOOL_CONFIG_OFFLINE "offline" 85 #define ZPOOL_CONFIG_FAULTED "faulted" 86 #define ZPOOL_CONFIG_DEGRADED "degraded" 87 #define ZPOOL_CONFIG_REMOVED "removed" 88 89 #define VDEV_TYPE_ROOT "root" 90 #define VDEV_TYPE_MIRROR "mirror" 91 #define VDEV_TYPE_REPLACING "replacing" 92 #define VDEV_TYPE_RAIDZ "raidz" 93 #define VDEV_TYPE_DISK "disk" 94 #define VDEV_TYPE_FILE "file" 95 #define VDEV_TYPE_MISSING "missing" 96 #define VDEV_TYPE_HOLE "hole" 97 #define VDEV_TYPE_SPARE "spare" 98 #define VDEV_TYPE_L2CACHE "l2cache" 99 100 /* 101 * pool state. The following states are written to disk as part of the normal 102 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 103 * states are software abstractions used at various levels to communicate pool 104 * state. 105 */ 106 typedef enum pool_state { 107 POOL_STATE_ACTIVE = 0, /* In active use */ 108 POOL_STATE_EXPORTED, /* Explicitly exported */ 109 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 110 POOL_STATE_SPARE, /* Reserved for hot spare use */ 111 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 112 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 113 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 114 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 115 } pool_state_t; 116 117 #endif /* _SYS_FS_ZFS_H */ 118