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Commit | Line | Data |
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52826846 | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
52826846 | 3 | * |
cd29a5c8 | 4 | * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au> |
52826846 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" |
52826846 NB |
31 | #include "md_p.h" |
32 | #include "md_u.h" | |
e0d19036 | 33 | #include <sys/wait.h> |
52826846 | 34 | #include <sys/signal.h> |
98c6faba | 35 | #include <values.h> |
773135f5 | 36 | #include <syslog.h> |
52826846 | 37 | |
773135f5 NB |
38 | static void alert(char *event, char *dev, char *disc, char *mailaddr, char *cmd, |
39 | int dosyslog); | |
52826846 | 40 | |
e0d19036 NB |
41 | static char *percentalerts[] = { |
42 | "RebuildStarted", | |
43 | "Rebuild20", | |
44 | "Rebuild40", | |
45 | "Rebuild60", | |
46 | "Rebuild80", | |
47 | }; | |
48 | ||
e27d562b NB |
49 | /* The largest number of disks current arrays can manage is 384 |
50 | * This really should be dynamically, but that will have to wait | |
51 | * At least it isn't MD_SB_DISKS. | |
52 | */ | |
53 | #define MaxDisks 384 | |
cd29a5c8 | 54 | int Monitor(mddev_dev_t devlist, |
52826846 | 55 | char *mailaddr, char *alert_cmd, |
aa88f531 | 56 | int period, int daemonise, int scan, int oneshot, |
773135f5 | 57 | int dosyslog, char *config, int test, char* pidfile) |
52826846 NB |
58 | { |
59 | /* | |
60 | * Every few seconds, scan every md device looking for changes | |
61 | * When a change is found, log it, possibly run the alert command, | |
62 | * and possibly send Email | |
63 | * | |
64 | * For each array, we record: | |
65 | * Update time | |
66 | * active/working/failed/spare drives | |
67 | * State of each device. | |
e0d19036 | 68 | * %rebuilt if rebuilding |
52826846 NB |
69 | * |
70 | * If the update time changes, check out all the data again | |
71 | * It is possible that we cannot get the state of each device | |
72 | * due to bugs in the md kernel module. | |
e0d19036 NB |
73 | * We also read /proc/mdstat to get rebuild percent, |
74 | * and to get state on all active devices incase of kernel bug. | |
52826846 | 75 | * |
e0d19036 NB |
76 | * Events are: |
77 | * Fail | |
78 | * An active device had Faulty set or Active/Sync removed | |
79 | * FailSpare | |
80 | * A spare device had Faulty set | |
81 | * SpareActive | |
82 | * An active device had a reverse transition | |
83 | * RebuildStarted | |
84 | * percent went from -1 to +ve | |
85 | * Rebuild20 Rebuild40 Rebuild60 Rebuild80 | |
86 | * percent went from below to not-below that number | |
87 | * DeviceDisappeared | |
88 | * Couldn't access a device which was previously visible | |
52826846 NB |
89 | * |
90 | * if we detect an array with active<raid and spare==0 | |
91 | * we look at other arrays that have same spare-group | |
92 | * If we find one with active==raid and spare>0, | |
93 | * and if we can get_disk_info and find a name | |
94 | * Then we hot-remove and hot-add to the other array | |
95 | * | |
e0d19036 NB |
96 | * If devlist is NULL, then we can monitor everything because --scan |
97 | * was given. We get an initial list from config file and add anything | |
98 | * that appears in /proc/mdstat | |
52826846 NB |
99 | */ |
100 | ||
101 | struct state { | |
102 | char *devname; | |
e0d19036 | 103 | int devnum; /* to sync with mdstat info */ |
52826846 NB |
104 | long utime; |
105 | int err; | |
e0d19036 NB |
106 | char *spare_group; |
107 | int active, working, failed, spare, raid; | |
feb716e9 | 108 | int expected_spares; |
e27d562b NB |
109 | int devstate[MaxDisks]; |
110 | int devid[MaxDisks]; | |
e0d19036 | 111 | int percent; |
52826846 NB |
112 | struct state *next; |
113 | } *statelist = NULL; | |
114 | int finished = 0; | |
e0d19036 NB |
115 | struct mdstat_ent *mdstat = NULL; |
116 | ||
d013a55e | 117 | if (!mailaddr) { |
e0d19036 | 118 | mailaddr = conf_get_mailaddr(config); |
d013a55e | 119 | if (mailaddr && ! scan) |
56eedc1a | 120 | fprintf(stderr, Name ": Monitor using email address \"%s\" from config file\n", |
d013a55e NB |
121 | mailaddr); |
122 | } | |
123 | if (!alert_cmd) { | |
e0d19036 | 124 | alert_cmd = conf_get_program(config); |
d013a55e | 125 | if (alert_cmd && ! scan) |
56eedc1a | 126 | fprintf(stderr, Name ": Monitor using program \"%s\" from config file\n", |
d013a55e NB |
127 | alert_cmd); |
128 | } | |
56eedc1a NB |
129 | if (scan && !mailaddr && !alert_cmd) { |
130 | fprintf(stderr, Name ": No mail address or alert command - not monitoring.\n"); | |
d013a55e | 131 | return 1; |
56eedc1a | 132 | } |
d013a55e NB |
133 | |
134 | if (daemonise) { | |
135 | int pid = fork(); | |
136 | if (pid > 0) { | |
b5e64645 NB |
137 | if (!pidfile) |
138 | printf("%d\n", pid); | |
139 | else { | |
140 | FILE *pid_file; | |
141 | pid_file=fopen(pidfile, "w"); | |
142 | if (!pid_file) | |
143 | perror("cannot create pid file"); | |
144 | else { | |
145 | fprintf(pid_file,"%d\n", pid); | |
146 | fclose(pid_file); | |
147 | } | |
148 | } | |
d013a55e NB |
149 | return 0; |
150 | } | |
151 | if (pid < 0) { | |
152 | perror("daemonise"); | |
153 | return 1; | |
154 | } | |
155 | close(0); | |
156 | open("/dev/null", 3); | |
157 | dup2(0,1); | |
158 | dup2(0,2); | |
159 | setsid(); | |
160 | } | |
e0d19036 NB |
161 | |
162 | if (devlist == NULL) { | |
163 | mddev_ident_t mdlist = conf_get_ident(config, NULL); | |
164 | for (; mdlist; mdlist=mdlist->next) { | |
165 | struct state *st = malloc(sizeof *st); | |
166 | if (st == NULL) | |
167 | continue; | |
168 | st->devname = strdup(mdlist->devname); | |
169 | st->utime = 0; | |
170 | st->next = statelist; | |
d013a55e | 171 | st->err = 0; |
98c6faba | 172 | st->devnum = MAXINT; |
e0d19036 | 173 | st->percent = -2; |
feb716e9 | 174 | st->expected_spares = mdlist->spare_disks; |
e0d19036 NB |
175 | if (mdlist->spare_group) |
176 | st->spare_group = strdup(mdlist->spare_group); | |
177 | else | |
178 | st->spare_group = NULL; | |
179 | statelist = st; | |
180 | } | |
181 | } else { | |
cd29a5c8 | 182 | mddev_dev_t dv; |
e0d19036 | 183 | for (dv=devlist ; dv; dv=dv->next) { |
e5329c37 | 184 | mddev_ident_t mdlist = conf_get_ident(config, dv->devname); |
e0d19036 NB |
185 | struct state *st = malloc(sizeof *st); |
186 | if (st == NULL) | |
187 | continue; | |
188 | st->devname = strdup(dv->devname); | |
189 | st->utime = 0; | |
190 | st->next = statelist; | |
d013a55e | 191 | st->err = 0; |
98c6faba | 192 | st->devnum = MAXINT; |
e0d19036 | 193 | st->percent = -2; |
feb716e9 | 194 | st->expected_spares = -1; |
e0d19036 | 195 | st->spare_group = NULL; |
e5329c37 NB |
196 | if (mdlist) { |
197 | st->expected_spares = mdlist->spare_disks; | |
198 | if (mdlist->spare_group) | |
199 | st->spare_group = strdup(mdlist->spare_group); | |
200 | } | |
e0d19036 NB |
201 | statelist = st; |
202 | } | |
203 | } | |
204 | ||
205 | ||
206 | while (! finished) { | |
aa88f531 | 207 | int new_found = 0; |
e0d19036 NB |
208 | struct state *st; |
209 | ||
210 | if (mdstat) | |
211 | free_mdstat(mdstat); | |
22a88995 | 212 | mdstat = mdstat_read(oneshot?0:1, 0); |
e0d19036 NB |
213 | |
214 | for (st=statelist; st; st=st->next) { | |
52826846 | 215 | mdu_array_info_t array; |
dd0781e5 | 216 | struct mdstat_ent *mse = NULL, *mse2; |
e0d19036 | 217 | char *dev = st->devname; |
52826846 | 218 | int fd; |
98c6faba | 219 | unsigned int i; |
e0d19036 | 220 | |
98c6faba | 221 | if (test) |
773135f5 | 222 | alert("TestMessage", dev, NULL, mailaddr, alert_cmd, dosyslog); |
52826846 NB |
223 | fd = open(dev, O_RDONLY); |
224 | if (fd < 0) { | |
225 | if (!st->err) | |
e0d19036 | 226 | alert("DeviceDisappeared", dev, NULL, |
773135f5 | 227 | mailaddr, alert_cmd, dosyslog); |
e0d19036 | 228 | /* fprintf(stderr, Name ": cannot open %s: %s\n", |
52826846 | 229 | dev, strerror(errno)); |
e0d19036 | 230 | */ st->err=1; |
52826846 NB |
231 | continue; |
232 | } | |
233 | if (ioctl(fd, GET_ARRAY_INFO, &array)<0) { | |
234 | if (!st->err) | |
e0d19036 | 235 | alert("DeviceDisappeared", dev, NULL, |
773135f5 | 236 | mailaddr, alert_cmd, dosyslog); |
e0d19036 | 237 | /* fprintf(stderr, Name ": cannot get array info for %s: %s\n", |
52826846 | 238 | dev, strerror(errno)); |
e0d19036 | 239 | */ st->err=1; |
52826846 NB |
240 | close(fd); |
241 | continue; | |
242 | } | |
e5329c37 NB |
243 | if (array.level != 1 && array.level != 5 && array.level != -4 && |
244 | array.level != 6 && array.level != 10) { | |
5787fa49 NB |
245 | if (!st->err) |
246 | alert("DeviceDisappeared", dev, "Wrong-Level", | |
773135f5 | 247 | mailaddr, alert_cmd, dosyslog); |
5787fa49 NB |
248 | st->err = 1; |
249 | close(fd); | |
250 | continue; | |
251 | } | |
98c6faba | 252 | if (st->devnum == MAXINT) { |
e0d19036 NB |
253 | struct stat stb; |
254 | if (fstat(fd, &stb) == 0 && | |
98c6faba | 255 | (S_IFMT&stb.st_mode)==S_IFBLK) { |
0df46c2a NB |
256 | if (major(stb.st_rdev) == MD_MAJOR) |
257 | st->devnum = minor(stb.st_rdev); | |
98c6faba | 258 | else |
0df46c2a | 259 | st->devnum = -1- (minor(stb.st_rdev)>>6); |
98c6faba | 260 | } |
e0d19036 NB |
261 | } |
262 | ||
dd0781e5 NB |
263 | for (mse2 = mdstat ; mse2 ; mse2=mse2->next) |
264 | if (mse2->devnum == st->devnum) { | |
265 | mse2->devnum = MAXINT; /* flag it as "used" */ | |
266 | mse = mse2; | |
267 | } | |
e0d19036 | 268 | |
52826846 | 269 | if (st->utime == array.utime && |
e0d19036 NB |
270 | st->failed == array.failed_disks && |
271 | st->working == array.working_disks && | |
272 | st->spare == array.spare_disks && | |
273 | (mse == NULL || ( | |
274 | mse->percent == st->percent | |
275 | ))) { | |
52826846 | 276 | close(fd); |
e0d19036 | 277 | st->err = 0; |
52826846 NB |
278 | continue; |
279 | } | |
aa88f531 NB |
280 | if (st->utime == 0 && /* new array */ |
281 | mse && /* is in /proc/mdstat */ | |
282 | mse->pattern && strchr(mse->pattern, '_') /* degraded */ | |
283 | ) | |
773135f5 | 284 | alert("DegradedArray", dev, NULL, mailaddr, alert_cmd, dosyslog); |
aa88f531 | 285 | |
feb716e9 NB |
286 | if (st->utime == 0 && /* new array */ |
287 | st->expected_spares > 0 && | |
288 | array.spare_disks < st->expected_spares) | |
773135f5 | 289 | alert("SparesMissing", dev, NULL, mailaddr, alert_cmd, dosyslog); |
e0d19036 NB |
290 | if (mse && |
291 | st->percent == -1 && | |
292 | mse->percent >= 0) | |
773135f5 | 293 | alert("RebuildStarted", dev, NULL, mailaddr, alert_cmd, dosyslog); |
e0d19036 NB |
294 | if (mse && |
295 | st->percent >= 0 && | |
296 | mse->percent >= 0 && | |
297 | (mse->percent / 20) > (st->percent / 20)) | |
298 | alert(percentalerts[mse->percent/20], | |
773135f5 | 299 | dev, NULL, mailaddr, alert_cmd, dosyslog); |
e0d19036 | 300 | |
98c6faba NB |
301 | if (mse && |
302 | mse->percent == -1 && | |
303 | st->percent >= 0) | |
773135f5 | 304 | alert("RebuildFinished", dev, NULL, mailaddr, alert_cmd, dosyslog); |
98c6faba | 305 | |
e0d19036 NB |
306 | if (mse) |
307 | st->percent = mse->percent; | |
e27d562b NB |
308 | |
309 | for (i=0; i<MaxDisks; i++) { | |
52826846 | 310 | mdu_disk_info_t disc; |
e0d19036 NB |
311 | int newstate=0; |
312 | int change; | |
313 | char *dv = NULL; | |
52826846 | 314 | disc.number = i; |
e27d562b NB |
315 | if (i > array.raid_disks + array.nr_disks) { |
316 | newstate = 0; | |
317 | disc.major = disc.minor = 0; | |
318 | } else if (ioctl(fd, GET_DISK_INFO, &disc)>= 0) { | |
e0d19036 | 319 | newstate = disc.state; |
16c6fa80 | 320 | dv = map_dev(disc.major, disc.minor, 1); |
e27d562b | 321 | } else if (mse && mse->pattern && i < strlen(mse->pattern)) { |
e0d19036 NB |
322 | switch(mse->pattern[i]) { |
323 | case 'U': newstate = 6 /* ACTIVE/SYNC */; break; | |
324 | case '_': newstate = 0; break; | |
52826846 | 325 | } |
e27d562b NB |
326 | disc.major = disc.minor = 0; |
327 | } | |
fe394e5e NB |
328 | if (dv == NULL && st->devid[i]) |
329 | dv = map_dev(major(st->devid[i]), | |
16c6fa80 | 330 | minor(st->devid[i]), 1); |
e0d19036 NB |
331 | change = newstate ^ st->devstate[i]; |
332 | if (st->utime && change && !st->err) { | |
98c6faba | 333 | if (i < (unsigned)array.raid_disks && |
e0d19036 NB |
334 | (((newstate&change)&(1<<MD_DISK_FAULTY)) || |
335 | ((st->devstate[i]&change)&(1<<MD_DISK_ACTIVE)) || | |
336 | ((st->devstate[i]&change)&(1<<MD_DISK_SYNC))) | |
337 | ) | |
773135f5 | 338 | alert("Fail", dev, dv, mailaddr, alert_cmd, dosyslog); |
98c6faba | 339 | else if (i >= (unsigned)array.raid_disks && |
e0d19036 | 340 | (disc.major || disc.minor) && |
0df46c2a | 341 | st->devid[i] == makedev(disc.major, disc.minor) && |
e0d19036 NB |
342 | ((newstate&change)&(1<<MD_DISK_FAULTY)) |
343 | ) | |
773135f5 | 344 | alert("FailSpare", dev, dv, mailaddr, alert_cmd, dosyslog); |
98c6faba | 345 | else if (i < (unsigned)array.raid_disks && |
e0d19036 NB |
346 | (((st->devstate[i]&change)&(1<<MD_DISK_FAULTY)) || |
347 | ((newstate&change)&(1<<MD_DISK_ACTIVE)) || | |
348 | ((newstate&change)&(1<<MD_DISK_SYNC))) | |
349 | ) | |
773135f5 | 350 | alert("SpareActive", dev, dv, mailaddr, alert_cmd, dosyslog); |
52826846 | 351 | } |
e0d19036 | 352 | st->devstate[i] = disc.state; |
0df46c2a | 353 | st->devid[i] = makedev(disc.major, disc.minor); |
52826846 NB |
354 | } |
355 | close(fd); | |
356 | st->active = array.active_disks; | |
357 | st->working = array.working_disks; | |
358 | st->spare = array.spare_disks; | |
359 | st->failed = array.failed_disks; | |
360 | st->utime = array.utime; | |
e0d19036 NB |
361 | st->raid = array.raid_disks; |
362 | st->err = 0; | |
52826846 | 363 | } |
e0d19036 NB |
364 | /* now check if there are any new devices found in mdstat */ |
365 | if (scan) { | |
366 | struct mdstat_ent *mse; | |
367 | for (mse=mdstat; mse; mse=mse->next) | |
98c6faba | 368 | if (mse->devnum != MAXINT && |
5787fa49 NB |
369 | (strcmp(mse->level, "raid1")==0 || |
370 | strcmp(mse->level, "raid5")==0 || | |
371 | strcmp(mse->level, "multipath")==0) | |
372 | ) { | |
e0d19036 | 373 | struct state *st = malloc(sizeof *st); |
98c6faba NB |
374 | mdu_array_info_t array; |
375 | int fd; | |
e0d19036 NB |
376 | if (st == NULL) |
377 | continue; | |
378 | st->devname = strdup(get_md_name(mse->devnum)); | |
98c6faba NB |
379 | if ((fd = open(st->devname, O_RDONLY)) < 0 || |
380 | ioctl(fd, GET_ARRAY_INFO, &array)< 0) { | |
381 | /* no such array */ | |
382 | if (fd >=0) close(fd); | |
383 | free(st->devname); | |
384 | free(st); | |
385 | continue; | |
386 | } | |
dd0781e5 | 387 | close(fd); |
e0d19036 NB |
388 | st->utime = 0; |
389 | st->next = statelist; | |
390 | st->err = 1; | |
391 | st->devnum = mse->devnum; | |
392 | st->percent = -2; | |
393 | st->spare_group = NULL; | |
98c6faba | 394 | st->expected_spares = -1; |
e0d19036 | 395 | statelist = st; |
773135f5 | 396 | alert("NewArray", st->devname, NULL, mailaddr, alert_cmd, dosyslog); |
aa88f531 | 397 | new_found = 1; |
e0d19036 NB |
398 | } |
399 | } | |
400 | /* If an array has active < raid && spare == 0 && spare_group != NULL | |
401 | * Look for another array with spare > 0 and active == raid and same spare_group | |
402 | * if found, choose a device and hotremove/hotadd | |
403 | */ | |
404 | for (st = statelist; st; st=st->next) | |
405 | if (st->active < st->raid && | |
406 | st->spare == 0 && | |
407 | st->spare_group != NULL) { | |
408 | struct state *st2; | |
409 | for (st2=statelist ; st2 ; st2=st2->next) | |
410 | if (st2 != st && | |
411 | st2->spare > 0 && | |
412 | st2->active == st2->raid && | |
413 | st2->spare_group != NULL && | |
414 | strcmp(st->spare_group, st2->spare_group) == 0) { | |
415 | /* try to remove and add */ | |
416 | int fd1 = open(st->devname, O_RDONLY); | |
417 | int fd2 = open(st2->devname, O_RDONLY); | |
418 | int dev = -1; | |
419 | int d; | |
420 | if (fd1 < 0 || fd2 < 0) { | |
421 | if (fd1>=0) close(fd1); | |
422 | if (fd2>=0) close(fd2); | |
423 | continue; | |
424 | } | |
e27d562b | 425 | for (d=st2->raid; d < MaxDisks; d++) { |
e0d19036 NB |
426 | if (st2->devid[d] > 0 && |
427 | st2->devstate[d] == 0) { | |
428 | dev = st2->devid[d]; | |
429 | break; | |
430 | } | |
431 | } | |
432 | if (dev > 0) { | |
433 | if (ioctl(fd2, HOT_REMOVE_DISK, | |
434 | (unsigned long)dev) == 0) { | |
435 | if (ioctl(fd1, HOT_ADD_DISK, | |
436 | (unsigned long)dev) == 0) { | |
773135f5 | 437 | alert("MoveSpare", st->devname, st2->devname, mailaddr, alert_cmd, dosyslog); |
e0d19036 NB |
438 | close(fd1); |
439 | close(fd2); | |
440 | break; | |
441 | } | |
442 | else ioctl(fd2, HOT_ADD_DISK, (unsigned long) dev); | |
443 | } | |
444 | } | |
445 | close(fd1); | |
446 | close(fd2); | |
447 | } | |
448 | } | |
aa88f531 NB |
449 | if (!new_found) { |
450 | if (oneshot) | |
451 | break; | |
452 | else | |
dd0781e5 | 453 | mdstat_wait(period); |
aa88f531 | 454 | } |
98c6faba | 455 | test = 0; |
52826846 | 456 | } |
b5e64645 NB |
457 | if (pidfile) |
458 | unlink(pidfile); | |
52826846 NB |
459 | return 0; |
460 | } | |
461 | ||
462 | ||
773135f5 NB |
463 | static void alert(char *event, char *dev, char *disc, char *mailaddr, char *cmd, |
464 | int dosyslog) | |
52826846 | 465 | { |
773135f5 NB |
466 | int priority; |
467 | ||
cd29a5c8 NB |
468 | if (!cmd && !mailaddr) { |
469 | time_t now = time(0); | |
470 | ||
e0d19036 | 471 | printf("%1.15s: %s on %s %s\n", ctime(&now)+4, event, dev, disc?disc:"unknown device"); |
cd29a5c8 | 472 | } |
52826846 NB |
473 | if (cmd) { |
474 | int pid = fork(); | |
475 | switch(pid) { | |
476 | default: | |
477 | waitpid(pid, NULL, 0); | |
478 | break; | |
479 | case -1: | |
480 | break; | |
481 | case 0: | |
482 | execl(cmd, cmd, event, dev, disc, NULL); | |
483 | exit(2); | |
484 | } | |
485 | } | |
aa88f531 NB |
486 | if (mailaddr && |
487 | (strncmp(event, "Fail", 4)==0 || | |
98c6faba | 488 | strncmp(event, "Test", 4)==0 || |
aa88f531 | 489 | strncmp(event, "Degrade", 7)==0)) { |
52826846 NB |
490 | FILE *mp = popen(Sendmail, "w"); |
491 | if (mp) { | |
492 | char hname[256]; | |
493 | gethostname(hname, sizeof(hname)); | |
494 | signal(SIGPIPE, SIG_IGN); | |
495 | fprintf(mp, "From: " Name " monitoring <root>\n"); | |
496 | fprintf(mp, "To: %s\n", mailaddr); | |
497 | fprintf(mp, "Subject: %s event on %s:%s\n\n", event, dev, hname); | |
498 | ||
499 | fprintf(mp, "This is an automatically generated mail message from " Name "\n"); | |
500 | fprintf(mp, "running on %s\n\n", hname); | |
501 | ||
502 | fprintf(mp, "A %s event had been detected on md device %s.\n\n", event, dev); | |
503 | ||
504 | if (disc) | |
56eedc1a | 505 | fprintf(mp, "It could be related to component device %s.\n\n", disc); |
52826846 NB |
506 | |
507 | fprintf(mp, "Faithfully yours, etc.\n"); | |
508 | fclose(mp); | |
509 | } | |
510 | ||
511 | } | |
773135f5 NB |
512 | |
513 | /* log the event to syslog maybe */ | |
514 | if (dosyslog) { | |
515 | /* Log at a different severity depending on the event. | |
516 | * | |
517 | * These are the critical events: */ | |
518 | if (strncmp(event, "Fail", 4)==0 || | |
519 | strncmp(event, "Degrade", 7)==0 || | |
520 | strncmp(event, "DeviceDisappeared", 17)==0) | |
521 | priority = LOG_CRIT; | |
522 | /* Good to know about, but are not failures: */ | |
523 | else if (strncmp(event, "Rebuild", 7)==0 || | |
524 | strncmp(event, "MoveSpare", 9)==0) | |
525 | priority = LOG_WARNING; | |
526 | /* Everything else: */ | |
527 | else | |
528 | priority = LOG_INFO; | |
529 | ||
530 | if (disc) | |
531 | syslog(priority, "%s event detected on md device %s, component device %s", event, dev, disc); | |
532 | else | |
533 | syslog(priority, "%s event detected on md device %s", event, dev); | |
534 | } | |
52826846 | 535 | } |