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Commit | Line | Data |
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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
cd29a5c8 | 4 | * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au> |
64c4757e NB |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
22 | * Email: <neilb@cse.unsw.edu.au> | |
23 | * Paper: Neil Brown | |
24 | * School of Computer Science and Engineering | |
25 | * The University of New South Wales | |
26 | * Sydney, 2052 | |
27 | * Australia | |
28 | */ | |
29 | ||
9a9dab36 | 30 | #include "mdadm.h" |
64c4757e NB |
31 | #include "md_p.h" |
32 | #include "md_u.h" | |
33 | ||
cd29a5c8 | 34 | int Detail(char *dev, int brief) |
64c4757e NB |
35 | { |
36 | /* | |
37 | * Print out details for an md array by using | |
38 | * GET_ARRAY_INFO and GET_DISK_INFO ioctl calls | |
39 | */ | |
40 | ||
41 | int fd = open(dev, O_RDONLY, 0); | |
42 | int vers; | |
43 | mdu_array_info_t array; | |
44 | int d; | |
45 | time_t atime; | |
682c7051 | 46 | char *c; |
d013a55e | 47 | char *devices = NULL; |
64c4757e | 48 | |
82b27616 NB |
49 | mdp_super_t super; |
50 | int have_super = 0; | |
51 | ||
64c4757e | 52 | if (fd < 0) { |
682c7051 | 53 | fprintf(stderr, Name ": cannot open %s: %s\n", |
64c4757e NB |
54 | dev, strerror(errno)); |
55 | return 1; | |
56 | } | |
57 | vers = md_get_version(fd); | |
58 | if (vers < 0) { | |
682c7051 | 59 | fprintf(stderr, Name ": %s does not appear to be an md device\n", |
64c4757e NB |
60 | dev); |
61 | close(fd); | |
62 | return 1; | |
63 | } | |
682c7051 NB |
64 | if (vers < 9000) { |
65 | fprintf(stderr, Name ": cannot get detail for md device %s: driver version too old.\n", | |
64c4757e NB |
66 | dev); |
67 | close(fd); | |
68 | return 1; | |
69 | } | |
70 | if (ioctl(fd, GET_ARRAY_INFO, &array)<0) { | |
71 | if (errno == ENODEV) | |
682c7051 | 72 | fprintf(stderr, Name ": md device %s does not appear to be active.\n", |
64c4757e NB |
73 | dev); |
74 | else | |
682c7051 | 75 | fprintf(stderr, Name ": cannot get array detail for %s: %s\n", |
64c4757e NB |
76 | dev, strerror(errno)); |
77 | close(fd); | |
78 | return 1; | |
79 | } | |
80 | /* Ok, we have some info to print... */ | |
682c7051 | 81 | c = map_num(pers, array.level); |
cd29a5c8 | 82 | if (brief) |
b83d95f3 | 83 | printf("ARRAY %s level=%s num-devices=%d", dev, c?c:"-unknown-",array.raid_disks ); |
cd29a5c8 | 84 | else { |
e0d19036 NB |
85 | unsigned long array_size; |
86 | unsigned long long larray_size; | |
11a3e71d | 87 | #ifdef BLKGETSIZE64 |
56eb10c0 NB |
88 | if (ioctl(fd, BLKGETSIZE64, &larray_size)==0) |
89 | ; | |
11a3e71d NB |
90 | else |
91 | #endif | |
b83d95f3 NB |
92 | if (ioctl(fd, BLKGETSIZE, &array_size)==0) { |
93 | larray_size = array_size; | |
94 | larray_size <<= 9; | |
95 | } | |
96 | ||
56eb10c0 NB |
97 | else larray_size = 0; |
98 | ||
cd29a5c8 NB |
99 | printf("%s:\n", dev); |
100 | printf(" Version : %02d.%02d.%02d\n", | |
101 | array.major_version, array.minor_version, array.patch_version); | |
102 | atime = array.ctime; | |
103 | printf(" Creation Time : %.24s\n", ctime(&atime)); | |
104 | printf(" Raid Level : %s\n", c?c:"-unknown-"); | |
56eb10c0 | 105 | if (larray_size) |
5787fa49 | 106 | printf(" Array Size : %llu%s\n", (larray_size>>10), human_size(larray_size)); |
cd29a5c8 | 107 | if (array.level >= 1) |
56eb10c0 | 108 | printf(" Device Size : %d%s\n", array.size, human_size((long long)array.size<<10)); |
b83d95f3 NB |
109 | printf(" Raid Devices : %d\n", array.raid_disks); |
110 | printf(" Total Devices : %d\n", array.nr_disks); | |
cd29a5c8 | 111 | printf("Preferred Minor : %d\n", array.md_minor); |
b83d95f3 | 112 | printf(" Persistence : Superblock is %spersistent\n", |
cd29a5c8 NB |
113 | array.not_persistent?"not ":""); |
114 | printf("\n"); | |
115 | atime = array.utime; | |
116 | printf(" Update Time : %.24s\n", ctime(&atime)); | |
117 | printf(" State : %s, %serrors\n", | |
118 | (array.state&(1<<MD_SB_CLEAN))?"clean":"dirty", | |
119 | (array.state&(1<<MD_SB_ERRORS))?"":"no-"); | |
b83d95f3 NB |
120 | printf(" Active Devices : %d\n", array.active_disks); |
121 | printf("Working Devices : %d\n", array.working_disks); | |
122 | printf(" Failed Devices : %d\n", array.failed_disks); | |
123 | printf(" Spare Devices : %d\n", array.spare_disks); | |
cd29a5c8 NB |
124 | printf("\n"); |
125 | if (array.level == 5) { | |
126 | c = map_num(r5layout, array.layout); | |
127 | printf(" Layout : %s\n", c?c:"-unknown-"); | |
128 | } | |
129 | switch (array.level) { | |
130 | case 0: | |
131 | case 4: | |
132 | case 5: | |
133 | printf(" Chunk Size : %dK\n", array.chunk_size/1024); | |
134 | break; | |
135 | case -1: | |
136 | printf(" Rounding : %dK\n", array.chunk_size/1024); | |
137 | break; | |
138 | default: break; | |
139 | } | |
82b27616 | 140 | |
cd29a5c8 | 141 | printf("\n"); |
b83d95f3 | 142 | printf(" Number Major Minor RaidDevice State\n"); |
cd29a5c8 | 143 | } |
e0d19036 | 144 | for (d= 0; d<MD_SB_DISKS; d++) { |
64c4757e | 145 | mdu_disk_info_t disk; |
82b27616 | 146 | char *dv; |
64c4757e NB |
147 | disk.number = d; |
148 | if (ioctl(fd, GET_DISK_INFO, &disk) < 0) { | |
e0d19036 | 149 | if (d < array.raid_disks) |
b83d95f3 | 150 | fprintf(stderr, Name ": cannot get device detail for device %d: %s\n", |
e0d19036 | 151 | d, strerror(errno)); |
64c4757e NB |
152 | continue; |
153 | } | |
e0d19036 NB |
154 | if (d >= array.raid_disks && |
155 | disk.major == 0 && | |
156 | disk.minor == 0) | |
157 | continue; | |
cd29a5c8 NB |
158 | if (!brief) { |
159 | printf(" %5d %5d %5d %5d ", | |
160 | disk.number, disk.major, disk.minor, disk.raid_disk); | |
161 | if (disk.state & (1<<MD_DISK_FAULTY)) printf(" faulty"); | |
162 | if (disk.state & (1<<MD_DISK_ACTIVE)) printf(" active"); | |
163 | if (disk.state & (1<<MD_DISK_SYNC)) printf(" sync"); | |
164 | if (disk.state & (1<<MD_DISK_REMOVED)) printf(" removed"); | |
165 | } | |
82b27616 | 166 | if ((dv=map_dev(disk.major, disk.minor))) { |
d013a55e NB |
167 | if (brief) { |
168 | if (devices) { | |
169 | devices = realloc(devices, | |
170 | strlen(devices)+1+strlen(dv)+1); | |
171 | strcat(strcat(devices,","),dv); | |
172 | } else | |
173 | devices = strdup(dv); | |
174 | } else | |
175 | printf(" %s", dv); | |
5787fa49 | 176 | if (!have_super && (disk.state & (1<<MD_DISK_ACTIVE))) { |
cd29a5c8 NB |
177 | /* try to read the superblock from this device |
178 | * to get more info | |
179 | */ | |
180 | int fd = open(dv, O_RDONLY); | |
181 | if (fd >=0 && | |
182 | load_super(fd, &super) ==0 && | |
183 | super.ctime == array.ctime && | |
184 | super.level == array.level) | |
185 | have_super = 1; | |
186 | } | |
82b27616 | 187 | } |
cd29a5c8 | 188 | if (!brief) printf("\n"); |
64c4757e | 189 | } |
82b27616 | 190 | if (have_super) { |
cd29a5c8 NB |
191 | if (brief) printf(" UUID="); |
192 | else printf(" UUID : "); | |
82b27616 | 193 | if (super.minor_version >= 90) |
cd29a5c8 NB |
194 | printf("%08x:%08x:%08x:%08x", super.set_uuid0, super.set_uuid1, |
195 | super.set_uuid2, super.set_uuid3); | |
196 | else | |
197 | printf("%08x", super.set_uuid0); | |
5787fa49 NB |
198 | if (!brief) |
199 | printf("\n Events : %d.%d\n", super.events_hi, super.events_lo); | |
82b27616 | 200 | } |
d013a55e | 201 | if (brief && devices) printf("\n devices=%s", devices); |
cd29a5c8 | 202 | if (brief) printf("\n"); |
64c4757e NB |
203 | return 0; |
204 | } |