So you would like to monitor the latency of your NetApp device? Then you must be careful: in addition to the “latency” that usually refers to the “per volume latency”, the latency of a LUN can also be measured, which is not to be confused with the latency of the volumes on which the LUN is based.

Therefore we have developed a plugin, that correctly detects the latency of a LUN:

As part of this update, a number of SAN counters (san_other_latency, san_read_latency, san_write_latency) have been added to the PerfVolume plugin (which,amongst others, measures the per volume latency).