1 files changed, 64 insertions, 0 deletions
diff --git a/health/health.d/ram.conf b/health/health.d/ram.conf
new file mode 100644
index 00000000..4e437322
--- /dev/null
+++ b/health/health.d/ram.conf
@@ -0,0 +1,64 @@
+
+# you can disable an alarm notification by setting the 'to' line to: silent
+
+   alarm: used_ram_to_ignore
+      on: system.ram
+      os: linux freebsd
+   hosts: *
+    calc: ($zfs.arc_size.arcsz = nan)?(0):($zfs.arc_size.arcsz)
+   every: 10s
+    info: the amount of memory that is reported as used, but it is actually capable for resizing itself based on the system needs (eg. ZFS ARC)
+
+   alarm: ram_in_use
+      on: system.ram
+      os: linux
+   hosts: *
+#   calc: $used * 100 / ($used + $cached + $free)
+    calc: ($used - $used_ram_to_ignore) * 100 / ($used - $used_ram_to_ignore + $cached + $free)
+   units: %
+   every: 10s
+    warn: $this > (($status >= $WARNING)  ? (80) : (90))
+    crit: $this > (($status == $CRITICAL) ? (90) : (98))
+   delay: down 15m multiplier 1.5 max 1h
+    info: system RAM used
+      to: sysadmin
+
+   alarm: ram_available
+      on: mem.available
+      os: linux
+   hosts: *
+    calc: ($avail + $used_ram_to_ignore) * 100 / ($system.ram.used + $system.ram.cached + $system.ram.free + $system.ram.buffers)
+   units: %
+   every: 10s
+    warn: $this < (($status >= $WARNING)  ? ( 5) : (10))
+    crit: $this < (($status == $CRITICAL) ? (10) : ( 5))
+   delay: down 15m multiplier 1.5 max 1h
+    info: estimated amount of RAM available for userspace processes, without causing swapping
+      to: sysadmin
+
+## FreeBSD
+alarm: ram_in_use
+   on: system.ram
+   os: freebsd
+hosts: *
+ calc: ($active + $wired + $laundry + $buffers - $used_ram_to_ignore) * 100 / ($active + $wired + $laundry + $buffers - $used_ram_to_ignore + $cache + $free + $inactive)
+units: %
+every: 10s
+ warn: $this > (($status >= $WARNING)  ? (80) : (90))
+ crit: $this > (($status == $CRITICAL) ? (90) : (98))
+delay: down 15m multiplier 1.5 max 1h
+ info: system RAM usage
+   to: sysadmin
+
+ alarm: ram_available
+    on: system.ram
+    os: freebsd
+ hosts: *
+  calc: ($free + $inactive + $used_ram_to_ignore) * 100 / ($free + $active + $inactive + $wired + $cache + $laundry + $buffers)
+ units: %
+ every: 10s
+  warn: $this < (($status >= $WARNING)  ? ( 5) : (10))
+  crit: $this < (($status == $CRITICAL) ? (10) : ( 5))
+ delay: down 15m multiplier 1.5 max 1h
+  info: estimated amount of RAM available for userspace processes, without causing swapping
+    to: sysadmin