diff options
Diffstat (limited to 'collectors/proc.plugin/proc_mdstat.c')
| -rw-r--r-- | collectors/proc.plugin/proc_mdstat.c | 641 |
1 files changed, 641 insertions, 0 deletions
diff --git a/collectors/proc.plugin/proc_mdstat.c b/collectors/proc.plugin/proc_mdstat.c new file mode 100644 index 0000000..d0925ec --- /dev/null +++ b/collectors/proc.plugin/proc_mdstat.c @@ -0,0 +1,641 @@ +// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "plugin_proc.h"
+
+#define PLUGIN_PROC_MODULE_MDSTAT_NAME "/proc/mdstat"
+
+struct raid {
+ int redundant;
+ char *name;
+ uint32_t hash;
+
+ RRDDIM *rd_health;
+ unsigned long long failed_disks;
+
+ RRDSET *st_disks;
+ RRDDIM *rd_total;
+ RRDDIM *rd_inuse;
+ unsigned long long total_disks;
+ unsigned long long inuse_disks;
+
+ RRDSET *st_operation;
+ RRDDIM *rd_check;
+ RRDDIM *rd_resync;
+ RRDDIM *rd_recovery;
+ RRDDIM *rd_reshape;
+ unsigned long long check;
+ unsigned long long resync;
+ unsigned long long recovery;
+ unsigned long long reshape;
+
+ RRDSET *st_finish;
+ RRDDIM *rd_finish_in;
+ unsigned long long finish_in;
+
+ RRDSET *st_speed;
+ RRDDIM *rd_speed;
+ unsigned long long speed;
+
+ char *mismatch_cnt_filename;
+ RRDSET *st_mismatch_cnt;
+ RRDDIM *rd_mismatch_cnt;
+ unsigned long long mismatch_cnt;
+
+ RRDSET *st_nonredundant;
+ RRDDIM *rd_nonredundant;
+};
+
+struct old_raid {
+ int redundant;
+ char *name;
+ uint32_t hash;
+ int found;
+};
+
+static inline char *remove_trailing_chars(char *s, char c) {
+ while(*s) {
+ if(unlikely(*s == c)) {
+ *s = '\0';
+ }
+ s++;
+ }
+ return s;
+}
+
+static inline void make_chart_obsolete(char *name, const char *id_modifier) {
+ char id[50 + 1];
+ RRDSET *st = NULL;
+
+ if(likely(name && id_modifier)) {
+ snprintfz(id, 50, "mdstat.%s_%s", name, id_modifier);
+ st = rrdset_find_byname_localhost(id);
+ if(likely(st)) rrdset_is_obsolete(st);
+ }
+}
+
+int do_proc_mdstat(int update_every, usec_t dt) {
+ (void)dt;
+ static procfile *ff = NULL;
+ static int do_health = -1, do_nonredundant = -1, do_disks = -1, do_operations = -1, do_mismatch = -1, do_mismatch_config = -1;
+ static int make_charts_obsolete = -1;
+ static char *mdstat_filename = NULL, *mismatch_cnt_filename = NULL;
+ static struct raid *raids = NULL;
+ static size_t raids_allocated = 0;
+ size_t raids_num = 0, raid_idx = 0, redundant_num = 0;
+ static struct old_raid *old_raids = NULL;
+ static size_t old_raids_allocated = 0;
+ size_t old_raid_idx = 0;
+
+ if(unlikely(do_health == -1)){
+ do_health = config_get_boolean("plugin:proc:/proc/mdstat", "faulty devices", CONFIG_BOOLEAN_YES);
+ do_nonredundant = config_get_boolean("plugin:proc:/proc/mdstat", "nonredundant arrays availability", CONFIG_BOOLEAN_YES);
+ do_mismatch_config = config_get_boolean_ondemand("plugin:proc:/proc/mdstat", "mismatch count", CONFIG_BOOLEAN_AUTO);
+ do_disks = config_get_boolean("plugin:proc:/proc/mdstat", "disk stats", CONFIG_BOOLEAN_YES);
+ do_operations = config_get_boolean("plugin:proc:/proc/mdstat", "operation status", CONFIG_BOOLEAN_YES);
+
+ make_charts_obsolete = config_get_boolean("plugin:proc:/proc/mdstat", "make charts obsolete", CONFIG_BOOLEAN_YES);
+
+ char filename[FILENAME_MAX + 1];
+
+ snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/proc/mdstat");
+ mdstat_filename = config_get("plugin:proc:/proc/mdstat", "filename to monitor", filename);
+
+ snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/block/%s/md/mismatch_cnt");
+ mismatch_cnt_filename = config_get("plugin:proc:/proc/mdstat", "mismatch_cnt filename to monitor", filename);
+ }
+
+ if(unlikely(!ff)) {
+ ff = procfile_open(mdstat_filename, " \t:", PROCFILE_FLAG_DEFAULT);
+ if(unlikely(!ff)) return 1;
+ }
+
+ ff = procfile_readall(ff);
+ if(unlikely(!ff)) return 0; // we return 0, so that we will retry opening it next time
+
+ size_t lines = procfile_lines(ff);
+ size_t words = 0;
+
+ if(unlikely(lines < 2)) {
+ error("Cannot read /proc/mdstat. Expected 2 or more lines, read %zu.", lines);
+ return 1;
+ }
+
+ // find how many raids are there
+ size_t l;
+ raids_num = 0;
+ for(l = 1; l < lines - 2 ; l++) {
+ if(unlikely(procfile_lineword(ff, l, 1)[0] == 'a')) // check if the raid is active
+ raids_num++;
+ }
+
+ if(unlikely(!raids_num && !old_raids_allocated)) return 0; // we return 0, so that we will retry searching for raids next time
+
+ // allocate the memory we need;
+ if(unlikely(raids_num != raids_allocated)) {
+ for(raid_idx = 0; raid_idx < raids_allocated; raid_idx++) {
+ struct raid *raid = &raids[raid_idx];
+ freez(raid->name);
+ freez(raid->mismatch_cnt_filename);
+ }
+ if(raids_num) {
+ raids = (struct raid *)reallocz(raids, raids_num * sizeof(struct raid));
+ memset(raids, 0, raids_num * sizeof(struct raid));
+ }
+ else {
+ freez(raids);
+ raids = NULL;
+ }
+ raids_allocated = raids_num;
+ }
+
+ // loop through all lines except the first and the last ones
+ for(l = 1, raid_idx = 0; l < (lines - 2) && raid_idx < raids_num; l++) {
+ struct raid *raid = &raids[raid_idx];
+ raid->redundant = 0;
+
+ words = procfile_linewords(ff, l);
+ if(unlikely(words < 2)) continue;
+
+ if(unlikely(procfile_lineword(ff, l, 1)[0] != 'a')) continue;
+ if(unlikely(!raid->name)) {
+ raid->name = strdupz(procfile_lineword(ff, l, 0));
+ raid->hash = simple_hash(raid->name);
+ }
+ else if(unlikely(strcmp(raid->name, procfile_lineword(ff, l, 0)))) {
+ freez(raid->name);
+ freez(raid->mismatch_cnt_filename);
+ memset(raid, 0, sizeof(struct raid));
+ raid->name = strdupz(procfile_lineword(ff, l, 0));
+ raid->hash = simple_hash(raid->name);
+ }
+ if(unlikely(!raid->name || !raid->name[0])) continue;
+ raid_idx++;
+
+ // check if raid has disk status
+ l++;
+ words = procfile_linewords(ff, l);
+ if(words < 2 || procfile_lineword(ff, l, words - 1)[0] != '[') continue;
+
+ // split inuse and total number of disks
+ if(likely(do_health || do_disks)) {
+ char *s = NULL, *str_total = NULL, *str_inuse = NULL;
+
+ s = procfile_lineword(ff, l, words - 2);
+ if(unlikely(s[0] != '[')) {
+ error("Cannot read /proc/mdstat raid health status. Unexpected format: missing opening bracket.");
+ continue;
+ }
+ str_total = ++s;
+ while(*s) {
+ if(unlikely(*s == '/')) {
+ *s = '\0';
+ str_inuse = s + 1;
+ }
+ else if(unlikely(*s == ']')) {
+ *s = '\0';
+ break;
+ }
+ s++;
+ }
+ if(unlikely(str_total[0] == '\0' || str_inuse[0] == '\0')) {
+ error("Cannot read /proc/mdstat raid health status. Unexpected format.");
+ continue;
+ }
+
+ raid->inuse_disks = str2ull(str_inuse);
+ raid->total_disks = str2ull(str_total);
+ raid->failed_disks = raid->total_disks - raid->inuse_disks;
+ }
+
+ raid->redundant = 1;
+ redundant_num++;
+ l++;
+
+ // check if any operation is performed on the raid
+ if(likely(do_operations)) {
+ char *s = NULL;
+
+ raid->check = 0;
+ raid->resync = 0;
+ raid->recovery = 0;
+ raid->reshape = 0;
+ raid->finish_in = 0;
+ raid->speed = 0;
+
+ words = procfile_linewords(ff, l);
+ if(likely(words < 2)) continue;
+ if(unlikely(procfile_lineword(ff, l, 0)[0] != '[')) continue;
+ if(unlikely(words < 7)) {
+ error("Cannot read /proc/mdstat line. Expected 7 params, read %zu.", words);
+ continue;
+ }
+
+ char *word;
+ word = procfile_lineword(ff, l, 3);
+ remove_trailing_chars(word, '%');
+
+ unsigned long long percentage = (unsigned long long)(str2ld(word, NULL) * 100);
+ // possible operations: check, resync, recovery, reshape
+ // 4-th character is unique for each operation so it is checked
+ switch(procfile_lineword(ff, l, 1)[3]) {
+ case 'c': // check
+ raid->check = percentage;
+ break;
+ case 'y': // resync
+ raid->resync = percentage;
+ break;
+ case 'o': // recovery
+ raid->recovery = percentage;
+ break;
+ case 'h': // reshape
+ raid->reshape = percentage;
+ break;
+ }
+
+ word = procfile_lineword(ff, l, 5);
+ s = remove_trailing_chars(word, 'm'); // remove trailing "min"
+
+ word += 7; // skip leading "finish="
+
+ if(likely(s > word))
+ raid->finish_in = (unsigned long long)(str2ld(word, NULL) * 60);
+
+ word = procfile_lineword(ff, l, 6);
+ s = remove_trailing_chars(word, 'K'); // remove trailing "K/sec"
+
+ word += 6; // skip leading "speed="
+
+ if(likely(s > word))
+ raid->speed = str2ull(word);
+ }
+ }
+
+ // read mismatch_cnt files
+ if(do_mismatch == -1) {
+ if(do_mismatch_config == CONFIG_BOOLEAN_AUTO) {
+ if(raids_num > 50)
+ do_mismatch = CONFIG_BOOLEAN_NO;
+ else
+ do_mismatch = CONFIG_BOOLEAN_YES;
+ }
+ else
+ do_mismatch = do_mismatch_config;
+ }
+
+ if(likely(do_mismatch)) {
+ for(raid_idx = 0; raid_idx < raids_num ; raid_idx++) {
+ char filename[FILENAME_MAX + 1];
+ struct raid *raid = &raids[raid_idx];
+
+ if(likely(raid->redundant)) {
+ if(unlikely(!raid->mismatch_cnt_filename)) {
+ snprintfz(filename, FILENAME_MAX, mismatch_cnt_filename, raid->name);
+ raid->mismatch_cnt_filename = strdupz(filename);
+ }
+ if(unlikely(read_single_number_file(raid->mismatch_cnt_filename, &raid->mismatch_cnt))) {
+ error("Cannot read file '%s'", raid->mismatch_cnt_filename);
+ do_mismatch = CONFIG_BOOLEAN_NO;
+ error("Monitoring for mismatch count has been disabled");
+ break;
+ }
+ }
+ }
+ }
+
+ // check for disappeared raids
+ for(old_raid_idx = 0; old_raid_idx < old_raids_allocated; old_raid_idx++) {
+ struct old_raid *old_raid = &old_raids[old_raid_idx];
+ int found = 0;
+
+ for(raid_idx = 0; raid_idx < raids_num ; raid_idx++) {
+ struct raid *raid = &raids[raid_idx];
+
+ if(unlikely(raid->hash == old_raid->hash
+ && !strcmp(raid->name, old_raid->name)
+ && raid->redundant == old_raid->redundant)) found = 1;
+ }
+
+ old_raid->found = found;
+ }
+
+ int raid_disappeared = 0;
+ for(old_raid_idx = 0; old_raid_idx < old_raids_allocated; old_raid_idx++) {
+ struct old_raid *old_raid = &old_raids[old_raid_idx];
+
+ if(unlikely(!old_raid->found)) {
+ if(likely(make_charts_obsolete)) {
+ make_chart_obsolete(old_raid->name, "disks");
+ make_chart_obsolete(old_raid->name, "mismatch");
+ make_chart_obsolete(old_raid->name, "operation");
+ make_chart_obsolete(old_raid->name, "finish");
+ make_chart_obsolete(old_raid->name, "speed");
+ make_chart_obsolete(old_raid->name, "availability");
+ }
+ raid_disappeared = 1;
+ }
+ }
+
+ // allocate memory for nonredundant arrays
+ if(unlikely(raid_disappeared || old_raids_allocated != raids_num)) {
+ for(old_raid_idx = 0; old_raid_idx < old_raids_allocated; old_raid_idx++) {
+ freez(old_raids[old_raid_idx].name);
+ }
+ if(likely(raids_num)) {
+ old_raids = reallocz(old_raids, sizeof(struct old_raid) * raids_num);
+ memset(old_raids, 0, sizeof(struct old_raid) * raids_num);
+ }
+ else {
+ freez(old_raids);
+ old_raids = NULL;
+ }
+ old_raids_allocated = raids_num;
+ for(old_raid_idx = 0; old_raid_idx < old_raids_allocated; old_raid_idx++) {
+ struct old_raid *old_raid = &old_raids[old_raid_idx];
+ struct raid *raid = &raids[old_raid_idx];
+
+ old_raid->name = strdupz(raid->name);
+ old_raid->hash = raid->hash;
+ old_raid->redundant = raid->redundant;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ if(likely(do_health && redundant_num)) {
+ static RRDSET *st_mdstat_health = NULL;
+ if(unlikely(!st_mdstat_health)) {
+ st_mdstat_health = rrdset_create_localhost(
+ "mdstat"
+ , "mdstat_health"
+ , NULL
+ , "health"
+ , "md.health"
+ , "Faulty Devices In MD"
+ , "failed disks"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_HEALTH
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(st_mdstat_health);
+ }
+ else
+ rrdset_next(st_mdstat_health);
+
+ if(!redundant_num) {
+ if(likely(make_charts_obsolete)) make_chart_obsolete("mdstat", "health");
+ }
+ else {
+ for(raid_idx = 0; raid_idx < raids_num; raid_idx++) {
+ struct raid *raid = &raids[raid_idx];
+
+ if(likely(raid->redundant)) {
+ if(unlikely(!raid->rd_health && !(raid->rd_health = rrddim_find(st_mdstat_health, raid->name))))
+ raid->rd_health = rrddim_add(st_mdstat_health, raid->name, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(st_mdstat_health, raid->rd_health, raid->failed_disks);
+ }
+ }
+
+ rrdset_done(st_mdstat_health);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ for(raid_idx = 0; raid_idx < raids_num ; raid_idx++) {
+ struct raid *raid = &raids[raid_idx];
+ char id[50 + 1];
+ char family[50 + 1];
+
+ if(likely(raid->redundant)) {
+ if(likely(do_disks)) {
+ snprintfz(id, 50, "%s_disks", raid->name);
+
+ if(unlikely(!raid->st_disks && !(raid->st_disks = rrdset_find_byname_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_disks = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.disks"
+ , "Disks Stats"
+ , "disks"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_DISKS + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_STACKED
+ );
+
+ rrdset_isnot_obsolete(raid->st_disks);
+ }
+ else
+ rrdset_next(raid->st_disks);
+
+ if(unlikely(!raid->rd_inuse && !(raid->rd_inuse = rrddim_find(raid->st_disks, "inuse"))))
+ raid->rd_inuse = rrddim_add(raid->st_disks, "inuse", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+ if(unlikely(!raid->rd_total && !(raid->rd_total = rrddim_find(raid->st_disks, "total"))))
+ raid->rd_total = rrddim_add(raid->st_disks, "total", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_disks, raid->rd_inuse, raid->inuse_disks);
+ rrddim_set_by_pointer(raid->st_disks, raid->rd_total, raid->total_disks);
+
+ rrdset_done(raid->st_disks);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(likely(do_mismatch)) {
+ snprintfz(id, 50, "%s_mismatch", raid->name);
+
+ if(unlikely(!raid->st_mismatch_cnt && !(raid->st_mismatch_cnt = rrdset_find_byname_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_mismatch_cnt = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.mismatch_cnt"
+ , "Mismatch Count"
+ , "unsynchronized blocks"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_MISMATCH + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(raid->st_mismatch_cnt);
+ }
+ else
+ rrdset_next(raid->st_mismatch_cnt);
+
+ if(unlikely(!raid->rd_mismatch_cnt && !(raid->rd_mismatch_cnt = rrddim_find(raid->st_mismatch_cnt, "count"))))
+ raid->rd_mismatch_cnt = rrddim_add(raid->st_mismatch_cnt, "count", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_mismatch_cnt, raid->rd_mismatch_cnt, raid->mismatch_cnt);
+
+ rrdset_done(raid->st_mismatch_cnt);
+ }
+
+ // --------------------------------------------------------------------
+
+ if(likely(do_operations)) {
+ snprintfz(id, 50, "%s_operation", raid->name);
+
+ if(unlikely(!raid->st_operation && !(raid->st_operation = rrdset_find_byname_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_operation = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.status"
+ , "Current Status"
+ , "percent"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_OPERATION + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(raid->st_operation);
+ }
+ else
+ rrdset_next(raid->st_operation);
+
+ if(unlikely(!raid->rd_check && !(raid->rd_check = rrddim_find(raid->st_operation, "check"))))
+ raid->rd_check = rrddim_add(raid->st_operation, "check", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
+ if(unlikely(!raid->rd_resync && !(raid->rd_resync = rrddim_find(raid->st_operation, "resync"))))
+ raid->rd_resync = rrddim_add(raid->st_operation, "resync", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
+ if(unlikely(!raid->rd_recovery && !(raid->rd_recovery = rrddim_find(raid->st_operation, "recovery"))))
+ raid->rd_recovery = rrddim_add(raid->st_operation, "recovery", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
+ if(unlikely(!raid->rd_reshape && !(raid->rd_reshape = rrddim_find(raid->st_operation, "reshape"))))
+ raid->rd_reshape = rrddim_add(raid->st_operation, "reshape", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_operation, raid->rd_check, raid->check);
+ rrddim_set_by_pointer(raid->st_operation, raid->rd_resync, raid->resync);
+ rrddim_set_by_pointer(raid->st_operation, raid->rd_recovery, raid->recovery);
+ rrddim_set_by_pointer(raid->st_operation, raid->rd_reshape, raid->reshape);
+
+ rrdset_done(raid->st_operation);
+
+ // --------------------------------------------------------------------
+
+ snprintfz(id, 50, "%s_finish", raid->name);
+
+ if(unlikely(!raid->st_finish && !(raid->st_finish = rrdset_find_byname_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_finish = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.rate"
+ , "Approximate Time Unit Finish"
+ , "seconds"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_FINISH + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(raid->st_finish);
+ }
+ else
+ rrdset_next(raid->st_finish);
+
+ if(unlikely(!raid->rd_finish_in && !(raid->rd_finish_in = rrddim_find(raid->st_finish, "finish_in"))))
+ raid->rd_finish_in = rrddim_add(raid->st_finish, "finish_in", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_finish, raid->rd_finish_in, raid->finish_in);
+
+ rrdset_done(raid->st_finish);
+
+ // --------------------------------------------------------------------
+
+ snprintfz(id, 50, "%s_speed", raid->name);
+
+ if(unlikely(!raid->st_speed && !(raid->st_speed = rrdset_find_byname_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_speed = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.rate"
+ , "Operation Speed"
+ , "KiB/s"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_SPEED + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(raid->st_speed);
+ }
+ else
+ rrdset_next(raid->st_speed);
+
+ if(unlikely(!raid->rd_speed && !(raid->rd_speed = rrddim_find(raid->st_speed, "speed"))))
+ raid->rd_speed = rrddim_add(raid->st_speed, "speed", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_speed, raid->rd_speed, raid->speed);
+
+ rrdset_done(raid->st_speed);
+ }
+ }
+ else {
+
+ // --------------------------------------------------------------------
+
+ if(likely(do_nonredundant)) {
+ snprintfz(id, 50, "%s_availability", raid->name);
+
+ if(unlikely(!raid->st_nonredundant && !(raid->st_nonredundant = rrdset_find_localhost(id)))) {
+ snprintfz(family, 50, "%s", raid->name);
+
+ raid->st_nonredundant = rrdset_create_localhost(
+ "mdstat"
+ , id
+ , NULL
+ , family
+ , "md.nonredundant"
+ , "Nonredundant Array Availability"
+ , "boolean"
+ , PLUGIN_PROC_NAME
+ , PLUGIN_PROC_MODULE_MDSTAT_NAME
+ , NETDATA_CHART_PRIO_MDSTAT_NONREDUNDANT + raid_idx * 10
+ , update_every
+ , RRDSET_TYPE_LINE
+ );
+
+ rrdset_isnot_obsolete(raid->st_nonredundant);
+ }
+ else
+ rrdset_next(raid->st_nonredundant);
+
+ if(unlikely(!raid->rd_nonredundant && !(raid->rd_nonredundant = rrddim_find(raid->st_nonredundant, "available"))))
+ raid->rd_nonredundant = rrddim_add(raid->st_nonredundant, "available", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+ rrddim_set_by_pointer(raid->st_nonredundant, raid->rd_nonredundant, 1);
+
+ rrdset_done(raid->st_nonredundant);
+ }
+ }
+ }
+
+ return 0;
+}
|