derive value:DERIVE:0:U
df_complex value:GAUGE:0:U
df_inodes value:GAUGE:0:U
+df_complex_pct value:GAUGE:0:100.1
+df_inodes_pct value:GAUGE:0:100.1
df used:GAUGE:0:1125899906842623, free:GAUGE:0:1125899906842623
disk_latency read:GAUGE:0:U, write:GAUGE:0:U
disk_merged read:DERIVE:0:U, write:DERIVE:0:U