Add support for nonredundant arrays (netdata#4923)

* Add support for nonredundant arrays * Change charts representation and add an alarm * Minor cleanup for chart priorities * Add configuration options * Make charts obsolete when raid diappears * Fix small bugs, add config option for making charts obsolete * Fix mdstat parsing
gmosx · Dec 13, 2018 · f810850 · f810850
1 parent 2e6d26b
commit f810850
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Showing 4 changed files with 492 additions and 286 deletions.
diff --git a/collectors/all.h b/collectors/all.h
@@ -301,11 +301,12 @@
 // MDSTAT
 
 #define NETDATA_CHART_PRIO_MDSTAT_HEALTH              9000
-#define NETDATA_CHART_PRIO_MDSTAT_DISKS               9001 // 5 charts per raid
-#define NETDATA_CHART_PRIO_MDSTAT_MISMATCH            9002
-#define NETDATA_CHART_PRIO_MDSTAT_OPERATION           9003
-#define NETDATA_CHART_PRIO_MDSTAT_FINISH              9004
-#define NETDATA_CHART_PRIO_MDSTAT_SPEED               9005
+#define NETDATA_CHART_PRIO_MDSTAT_NONREDUNDANT        9001
+#define NETDATA_CHART_PRIO_MDSTAT_DISKS               9002 // 5 charts per raid
+#define NETDATA_CHART_PRIO_MDSTAT_MISMATCH            9003
+#define NETDATA_CHART_PRIO_MDSTAT_OPERATION           9004
+#define NETDATA_CHART_PRIO_MDSTAT_FINISH              9005
+#define NETDATA_CHART_PRIO_MDSTAT_SPEED               9006
 
 // Linux Power Supply
 #define NETDATA_CHART_PRIO_POWER_SUPPLY_CAPACITY      9500 // 4 charts per power supply

diff --git a/collectors/proc.plugin/README.md b/collectors/proc.plugin/README.md
@@ -192,12 +192,20 @@ So, to disable performance metrics for all loop devices you could add `performan
  * finish in minutes
  * speed in megabytes/s
 
+6. **Nonredundant array availability**
+
 #### configuration
 
 ```
 [plugin:proc:/proc/mdstat]
-    # mismatch_cnt filename to monitor = /sys/block/%s/md/mismatch_cnt
-    # filename to monitor = /proc/mdstat
+  # faulty devices = yes
+  # nonredundant arrays availability = yes
+  # mismatch count = auto
+  # disk stats = yes
+  # operation status = yes
+  # make charts obsolete = yes
+  # filename to monitor = /proc/mdstat
+  # mismatch_cnt filename to monitor = /sys/block/%s/md/mismatch_cnt
 ```
 
 ## Monitoring CPUs