/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#include "mdadm.h"
#include "md_p.h"
#include "md_u.h"
#include <sys/wait.h>
-#include <sys/signal.h>
-#include <values.h>
+#include <signal.h>
+#include <limits.h>
#include <syslog.h>
static void alert(char *event, char *dev, char *disc, char *mailaddr, char *mailfrom,
char *cmd, int dosyslog);
-static char *percentalerts[] = {
+static char *percentalerts[] = {
"RebuildStarted",
"Rebuild20",
"Rebuild40",
int Monitor(mddev_dev_t devlist,
char *mailaddr, char *alert_cmd,
int period, int daemonise, int scan, int oneshot,
- int dosyslog, char *config, int test, char* pidfile)
+ int dosyslog, int test, char* pidfile)
{
/*
* Every few seconds, scan every md device looking for changes
char *mailfrom = NULL;
if (!mailaddr) {
- mailaddr = conf_get_mailaddr(config);
+ mailaddr = conf_get_mailaddr();
if (mailaddr && ! scan)
fprintf(stderr, Name ": Monitor using email address \"%s\" from config file\n",
mailaddr);
}
- mailfrom = conf_get_mailfrom(config);
+ mailfrom = conf_get_mailfrom();
if (!alert_cmd) {
- alert_cmd = conf_get_program(config);
+ alert_cmd = conf_get_program();
if (alert_cmd && ! scan)
fprintf(stderr, Name ": Monitor using program \"%s\" from config file\n",
alert_cmd);
return 1;
}
close(0);
- open("/dev/null", 3);
+ open("/dev/null", O_RDWR);
dup2(0,1);
dup2(0,2);
setsid();
}
if (devlist == NULL) {
- mddev_ident_t mdlist = conf_get_ident(config, NULL);
+ mddev_ident_t mdlist = conf_get_ident(NULL);
for (; mdlist; mdlist=mdlist->next) {
- struct state *st = malloc(sizeof *st);
+ struct state *st;
+ if (mdlist->devname == NULL)
+ continue;
+ if (strcasecmp(mdlist->devname, "<ignore>") == 0)
+ continue;
+ st = malloc(sizeof *st);
if (st == NULL)
continue;
- st->devname = strdup(mdlist->devname);
+ if (mdlist->devname[0] == '/')
+ st->devname = strdup(mdlist->devname);
+ else {
+ st->devname = malloc(8+strlen(mdlist->devname)+1);
+ strcpy(strcpy(st->devname, "/dev/md/"),
+ mdlist->devname);
+ }
st->utime = 0;
st->next = statelist;
st->err = 0;
- st->devnum = MAXINT;
+ st->devnum = INT_MAX;
st->percent = -2;
st->expected_spares = mdlist->spare_disks;
if (mdlist->spare_group)
} else {
mddev_dev_t dv;
for (dv=devlist ; dv; dv=dv->next) {
- mddev_ident_t mdlist = conf_get_ident(config, dv->devname);
+ mddev_ident_t mdlist = conf_get_ident(dv->devname);
struct state *st = malloc(sizeof *st);
if (st == NULL)
continue;
st->utime = 0;
st->next = statelist;
st->err = 0;
- st->devnum = MAXINT;
+ st->devnum = INT_MAX;
st->percent = -2;
st->expected_spares = -1;
st->spare_group = NULL;
mdstat = mdstat_read(oneshot?0:1, 0);
for (st=statelist; st; st=st->next) {
+ struct { int state, major, minor; } info[MaxDisks];
mdu_array_info_t array;
struct mdstat_ent *mse = NULL, *mse2;
char *dev = st->devname;
*/ st->err=1;
continue;
}
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
if (!st->err)
alert("DeviceDisappeared", dev, NULL,
close(fd);
continue;
}
- if (array.level != 1 && array.level != 5 && array.level != -4 &&
- array.level != 6 && array.level != 10) {
+ /* It's much easier to list what array levels can't
+ * have a device disappear than all of them that can
+ */
+ if (array.level == 0 || array.level == -1) {
if (!st->err)
alert("DeviceDisappeared", dev, "Wrong-Level",
mailaddr, mailfrom, alert_cmd, dosyslog);
close(fd);
continue;
}
- if (st->devnum == MAXINT) {
+ if (st->devnum == INT_MAX) {
struct stat stb;
if (fstat(fd, &stb) == 0 &&
(S_IFMT&stb.st_mode)==S_IFBLK) {
for (mse2 = mdstat ; mse2 ; mse2=mse2->next)
if (mse2->devnum == st->devnum) {
- mse2->devnum = MAXINT; /* flag it as "used" */
+ mse2->devnum = INT_MAX; /* flag it as "used" */
mse = mse2;
}
+ if (array.utime == 0)
+ /* external arrays don't update utime */
+ array.utime = time(0);
+
if (st->utime == array.utime &&
st->failed == array.failed_disks &&
st->working == array.working_disks &&
alert("DegradedArray", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
if (st->utime == 0 && /* new array */
- st->expected_spares > 0 &&
- array.spare_disks < st->expected_spares)
+ st->expected_spares > 0 &&
+ array.spare_disks < st->expected_spares)
alert("SparesMissing", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
if (mse &&
- st->percent == -1 &&
+ st->percent == -1 &&
mse->percent >= 0)
alert("RebuildStarted", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
if (mse &&
if (mse &&
mse->percent == -1 &&
- st->percent >= 0)
- alert("RebuildFinished", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
+ st->percent >= 0) {
+ /* Rebuild/sync/whatever just finished.
+ * If there is a number in /mismatch_cnt,
+ * we should report that.
+ */
+ struct mdinfo *sra =
+ sysfs_read(-1, st->devnum, GET_MISMATCH);
+ if (sra && sra->mismatch_cnt > 0) {
+ char cnt[40];
+ sprintf(cnt, " mismatches found: %d", sra->mismatch_cnt);
+ alert("RebuildFinished", dev, cnt, mailaddr, mailfrom, alert_cmd, dosyslog);
+ } else
+ alert("RebuildFinished", dev, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
+ if (sra)
+ free(sra);
+ }
if (mse)
st->percent = mse->percent;
- for (i=0; i<MaxDisks; i++) {
+
+ for (i=0; i<MaxDisks && i <= array.raid_disks + array.nr_disks;
+ i++) {
mdu_disk_info_t disc;
+ disc.number = i;
+ if (ioctl(fd, GET_DISK_INFO, &disc) >= 0) {
+ info[i].state = disc.state;
+ info[i].major = disc.major;
+ info[i].minor = disc.minor;
+ } else
+ info[i].major = info[i].minor = 0;
+ }
+ close(fd);
+
+ for (i=0; i<MaxDisks; i++) {
+ mdu_disk_info_t disc = {0};
int newstate=0;
int change;
char *dv = NULL;
if (i > array.raid_disks + array.nr_disks) {
newstate = 0;
disc.major = disc.minor = 0;
- } else if (ioctl(fd, GET_DISK_INFO, &disc)>= 0) {
- newstate = disc.state;
- dv = map_dev(disc.major, disc.minor, 1);
+ } else if (info[i].major || info[i].minor) {
+ newstate = info[i].state;
+ dv = map_dev(info[i].major, info[i].minor, 1);
+ disc.state = newstate;
+ disc.major = info[i].major;
+ disc.minor = info[i].minor;
} else if (mse && mse->pattern && i < strlen(mse->pattern)) {
switch(mse->pattern[i]) {
case 'U': newstate = 6 /* ACTIVE/SYNC */; break;
)
alert("SpareActive", dev, dv, mailaddr, mailfrom, alert_cmd, dosyslog);
}
- st->devstate[i] = disc.state;
+ st->devstate[i] = newstate;
st->devid[i] = makedev(disc.major, disc.minor);
}
- close(fd);
st->active = array.active_disks;
st->working = array.working_disks;
st->spare = array.spare_disks;
/* now check if there are any new devices found in mdstat */
if (scan) {
struct mdstat_ent *mse;
- for (mse=mdstat; mse; mse=mse->next)
- if (mse->devnum != MAXINT &&
- (strcmp(mse->level, "raid1")==0 ||
- strcmp(mse->level, "raid5")==0 ||
- strcmp(mse->level, "multipath")==0)
+ for (mse=mdstat; mse; mse=mse->next)
+ if (mse->devnum != INT_MAX &&
+ mse->level &&
+ (strcmp(mse->level, "raid0")!=0 &&
+ strcmp(mse->level, "linear")!=0)
) {
struct state *st = malloc(sizeof *st);
mdu_array_info_t array;
ioctl(fd, GET_ARRAY_INFO, &array)< 0) {
/* no such array */
if (fd >=0) close(fd);
+ put_md_name(st->devname);
free(st->devname);
free(st);
- put_md_name(st->devname);
continue;
}
close(fd);
st->spare_group = NULL;
st->expected_spares = -1;
statelist = st;
+ if (test)
+ alert("TestMessage", st->devname, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
alert("NewArray", st->devname, NULL, mailaddr, mailfrom, alert_cmd, dosyslog);
new_found = 1;
}
}
}
if (dev > 0) {
- if (ioctl(fd2, HOT_REMOVE_DISK,
- (unsigned long)dev) == 0) {
- if (ioctl(fd1, HOT_ADD_DISK,
- (unsigned long)dev) == 0) {
+ struct mddev_dev_s devlist;
+ char devname[20];
+ devlist.next = NULL;
+ devlist.used = 0;
+ devlist.re_add = 0;
+ devlist.writemostly = 0;
+ devlist.devname = devname;
+ sprintf(devname, "%d:%d", major(dev), minor(dev));
+
+ devlist.disposition = 'r';
+ if (Manage_subdevs(st2->devname, fd2, &devlist, -1) == 0) {
+ devlist.disposition = 'a';
+ if (Manage_subdevs(st->devname, fd1, &devlist, -1) == 0) {
alert("MoveSpare", st->devname, st2->devname, mailaddr, mailfrom, alert_cmd, dosyslog);
close(fd1);
close(fd2);
break;
}
- else ioctl(fd2, HOT_ADD_DISK, (unsigned long) dev);
+ else Manage_subdevs(st2->devname, fd2, &devlist, -1);
}
}
close(fd1);
if (!cmd && !mailaddr) {
time_t now = time(0);
-
+
printf("%1.15s: %s on %s %s\n", ctime(&now)+4, event, dev, disc?disc:"unknown device");
}
if (cmd) {
exit(2);
}
}
- if (mailaddr &&
- (strncmp(event, "Fail", 4)==0 ||
+ if (mailaddr &&
+ (strncmp(event, "Fail", 4)==0 ||
strncmp(event, "Test", 4)==0 ||
strncmp(event, "Spares", 6)==0 ||
strncmp(event, "Degrade", 7)==0)) {
fprintf(mp, "A %s event had been detected on md device %s.\n\n", event, dev);
- if (disc)
+ if (disc && disc[0] != ' ')
fprintf(mp, "It could be related to component device %s.\n\n", disc);
+ if (disc && disc[0] == ' ')
+ fprintf(mp, "Extra information:%s.\n\n", disc);
fprintf(mp, "Faithfully yours, etc.\n");
if (mdstat) {
char buf[8192];
int n;
- fprintf(mp, "\nP.S. The /proc/mdstat file current contains the following:\n\n");
+ fprintf(mp, "\nP.S. The /proc/mdstat file currently contains the following:\n\n");
while ( (n=fread(buf, 1, sizeof(buf), mdstat)) > 0)
- fwrite(buf, 1, n, mp);
+ n=fwrite(buf, 1, n, mp); /* yes, i don't care about the result */
fclose(mdstat);
}
fclose(mp);
syslog(priority, "%s event detected on md device %s", event, dev);
}
}
+
+/* Not really Monitor but ... */
+int Wait(char *dev)
+{
+ struct stat stb;
+ int devnum;
+ int rv = 1;
+
+ if (stat(dev, &stb) != 0) {
+ fprintf(stderr, Name ": Cannot find %s: %s\n", dev,
+ strerror(errno));
+ return 2;
+ }
+ devnum = stat2devnum(&stb);
+
+ while(1) {
+ struct mdstat_ent *ms = mdstat_read(1, 0);
+ struct mdstat_ent *e;
+
+ for (e=ms ; e; e=e->next)
+ if (e->devnum == devnum)
+ break;
+
+ if (!e || e->percent < 0) {
+ if (e && e->metadata_version &&
+ strncmp(e->metadata_version, "external:", 9) == 0) {
+ if (is_subarray(&e->metadata_version[9]))
+ ping_monitor(&e->metadata_version[9]);
+ else
+ ping_monitor(devnum2devname(devnum));
+ }
+ free_mdstat(ms);
+ return rv;
+ }
+ free_mdstat(ms);
+ rv = 0;
+ mdstat_wait(5);
+ }
+}
projects / thirdparty / mdadm.git / blobdiff