]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - Query.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2002-2009 Neil Brown <neilb@suse.de>
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@suse.de>
31 /* Give a brief description of the device,
32 * whether it is an md device and whether it has
35 int fd
= open(dev
, O_RDONLY
);
40 mdu_array_info_t array
;
41 struct supertype
*st
= NULL
;
43 unsigned long long larray_size
;
50 pr_err("cannot open %s: %s\n",
51 dev
, strerror(errno
));
55 vers
= md_get_version(fd
);
56 if (ioctl(fd
, GET_ARRAY_INFO
, &array
)<0)
62 if (vers
>=9000 && !ioctlerr
) {
63 if (!get_dev_size(fd
, NULL
, &larray_size
))
68 printf("%s: is not an md array\n", dev
);
70 printf("%s: is an md device, but kernel cannot provide details\n", dev
);
71 else if (ioctlerr
== ENODEV
)
72 printf("%s: is an md device which is not active\n", dev
);
74 printf("%s: is an md device, but gives \"%s\" when queried\n",
75 dev
, strerror(ioctlerr
));
77 printf("%s: %s %s %d devices, %d spare%s. Use mdadm --detail for more detail.\n",
79 human_size_brief(larray_size
,IEC
),
80 map_num(pers
, array
.level
),
82 array
.spare_disks
, array
.spare_disks
==1?"":"s");
85 if (st
&& st
->ss
->compare_super
!= NULL
)
86 superror
= st
->ss
->load_super(st
, fd
, dev
);
91 /* array might be active... */
93 struct map_ent
*me
, *map
= NULL
;
94 st
->ss
->getinfo_super(st
, &info
, NULL
);
95 st
->ss
->uuid_from_super(st
, uuid
);
96 me
= map_by_uuid(&map
, uuid
);
99 disc
.number
= info
.disk
.number
;
100 activity
= "undetected";
101 if (mddev
&& (fd
= open(mddev
, O_RDONLY
))>=0) {
102 if (md_get_version(fd
) >= 9000 &&
103 ioctl(fd
, GET_ARRAY_INFO
, &array
)>= 0) {
104 if (ioctl(fd
, GET_DISK_INFO
, &disc
) >= 0 &&
105 makedev((unsigned)disc
.major
,(unsigned)disc
.minor
) == stb
.st_rdev
)
108 activity
= "mismatch";
113 activity
= "inactive";
116 printf("%s: device %d in %d device %s %s %s. Use mdadm --examine for more detail.\n",
118 info
.disk
.number
, info
.array
.raid_disks
,
120 map_num(pers
, info
.array
.level
),
122 if (st
->ss
== &super0
)