]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - Detail.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
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.
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.
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
22 * Email: <neilb@cse.unsw.edu.au>
24 * School of Computer Science and Engineering
25 * The University of New South Wales
34 int Detail(char *dev
, int brief
, int test
)
37 * Print out details for an md array by using
38 * GET_ARRAY_INFO and GET_DISK_INFO ioctl calls
41 int fd
= open(dev
, O_RDONLY
, 0);
43 mdu_array_info_t array
;
52 int rv
= test
? 4 : 1;
55 fprintf(stderr
, Name
": cannot open %s: %s\n",
56 dev
, strerror(errno
));
59 vers
= md_get_version(fd
);
61 fprintf(stderr
, Name
": %s does not appear to be an md device\n",
67 fprintf(stderr
, Name
": cannot get detail for md device %s: driver version too old.\n",
72 if (ioctl(fd
, GET_ARRAY_INFO
, &array
)<0) {
74 fprintf(stderr
, Name
": md device %s does not appear to be active.\n",
77 fprintf(stderr
, Name
": cannot get array detail for %s: %s\n",
78 dev
, strerror(errno
));
83 /* Ok, we have some info to print... */
84 c
= map_num(pers
, array
.level
);
86 printf("ARRAY %s level=%s num-devices=%d", dev
, c
?c
:"-unknown-",array
.raid_disks
);
88 unsigned long array_size
;
89 unsigned long long larray_size
;
91 if (ioctl(fd
, BLKGETSIZE64
, &larray_size
)==0)
95 if (ioctl(fd
, BLKGETSIZE
, &array_size
)==0) {
96 larray_size
= array_size
;
100 else larray_size
= 0;
102 printf("%s:\n", dev
);
103 printf(" Version : %02d.%02d.%02d\n",
104 array
.major_version
, array
.minor_version
, array
.patch_version
);
106 printf(" Creation Time : %.24s\n", ctime(&atime
));
107 printf(" Raid Level : %s\n", c
?c
:"-unknown-");
109 printf(" Array Size : %llu%s\n", (larray_size
>>10), human_size(larray_size
));
110 if (array
.level
>= 1)
111 printf(" Device Size : %d%s\n", array
.size
, human_size((long long)array
.size
<<10));
112 printf(" Raid Devices : %d\n", array
.raid_disks
);
113 printf(" Total Devices : %d\n", array
.nr_disks
);
114 printf("Preferred Minor : %d\n", array
.md_minor
);
115 printf(" Persistence : Superblock is %spersistent\n",
116 array
.not_persistent
?"not ":"");
119 printf(" Update Time : %.24s\n", ctime(&atime
));
120 printf(" State : %s, %serrors\n",
121 (array
.state
&(1<<MD_SB_CLEAN
))?"clean":"dirty",
122 (array
.state
&(1<<MD_SB_ERRORS
))?"":"no-");
123 printf(" Active Devices : %d\n", array
.active_disks
);
124 printf("Working Devices : %d\n", array
.working_disks
);
125 printf(" Failed Devices : %d\n", array
.failed_disks
);
126 printf(" Spare Devices : %d\n", array
.spare_disks
);
128 if (array
.level
== 5) {
129 c
= map_num(r5layout
, array
.layout
);
130 printf(" Layout : %s\n", c
?c
:"-unknown-");
132 switch (array
.level
) {
136 printf(" Chunk Size : %dK\n", array
.chunk_size
/1024);
139 printf(" Rounding : %dK\n", array
.chunk_size
/1024);
146 struct mdstat_ent
*ms
= mdstat_read();
147 struct mdstat_ent
*e
;
148 for (e
=ms
; e
; e
=e
->next
)
149 if (e
->devnum
== array
.md_minor
) {
151 printf(" Rebuild Status : %d%% complete\n\n", e
->percent
);
156 printf(" Number Major Minor RaidDevice State\n");
158 for (d
= 0; d
<MD_SB_DISKS
; d
++) {
159 mdu_disk_info_t disk
;
162 if (ioctl(fd
, GET_DISK_INFO
, &disk
) < 0) {
163 if (d
< array
.raid_disks
)
164 fprintf(stderr
, Name
": cannot get device detail for device %d: %s\n",
168 if (d
>= array
.raid_disks
&&
173 printf(" %5d %5d %5d %5d ",
174 disk
.number
, disk
.major
, disk
.minor
, disk
.raid_disk
);
175 if (disk
.state
& (1<<MD_DISK_FAULTY
)) printf(" faulty");
176 if (disk
.state
& (1<<MD_DISK_ACTIVE
)) printf(" active");
177 if (disk
.state
& (1<<MD_DISK_SYNC
)) printf(" sync");
178 if (disk
.state
& (1<<MD_DISK_REMOVED
)) printf(" removed");
179 if (disk
.state
== 0) { printf(" spare"); spares
++; }
181 if (test
&& d
< array
.raid_disks
&& disk
.state
& (1<<MD_DISK_FAULTY
)) {
182 if ((rv
& 1) && (array
.level
==4 || array
.level
== 5))
186 if ((dv
=map_dev(disk
.major
, disk
.minor
))) {
189 devices
= realloc(devices
,
190 strlen(devices
)+1+strlen(dv
)+1);
191 strcat(strcat(devices
,","),dv
);
193 devices
= strdup(dv
);
196 if (!have_super
&& (disk
.state
& (1<<MD_DISK_ACTIVE
))) {
197 /* try to read the superblock from this device
200 int fd
= open(dv
, O_RDONLY
);
202 load_super(fd
, &super
) ==0 &&
203 (unsigned long)super
.ctime
== (unsigned long)array
.ctime
&&
204 (unsigned int)super
.level
== (unsigned int)array
.level
)
208 if (!brief
) printf("\n");
210 if (spares
&& brief
) printf(" spares=%d", spares
);
212 if (brief
) printf(" UUID=");
213 else printf(" UUID : ");
214 if (super
.minor_version
>= 90)
215 printf("%08x:%08x:%08x:%08x", super
.set_uuid0
, super
.set_uuid1
,
216 super
.set_uuid2
, super
.set_uuid3
);
218 printf("%08x", super
.set_uuid0
);
220 printf("\n Events : %d.%d\n", super
.events_hi
, super
.events_lo
);
222 if (brief
&& devices
) printf("\n devices=%s", devices
);
223 if (brief
) printf("\n");
224 if (test
&& (rv
&2)) rv
&= ~1;