Documentation

NetApp E-series / Lenovo DE Series / Dell PowerVault MD3000 : REST API support

New firmware of above storage models contain REST API which provide configuration and performance stats.
STOR2RRD v2.80+ supports REST API which can fully replace older CLI (SMcli) access.

REST API provide much more performance metrics and is much easier to setup (you do not need install any 3rd party SW).

You can even switch from CLI (SMcli) to REST API but you lose historical data.

It might even work for IBM DS3xxx, 4xxx, 5xxx storages if they have REST API available.

List of monitored metrics by both APIs

SubsystemMetricREST APICLI (SMcli)
POOL Capacity yes yes
IO yes yes
Data yes yes
Latency yes yes
Block size yes yes
VOLUME IO yes yes
Data yes yes
Latency yes yes
Block size yes yes
Cache hit yes yes
Cache usage yes yes
DRIVE IO yes
Data yes
Latency yes
PORT IO yes
Data yes
Latency yes
iSCSI, FC, (Data, IO, Latency) yes
Host IO yes yes
Data yes yes
Latency yes yes
Host Group IO yes
Data yes
Latency yes
Node IO yes
Data yes
Latency yes
CPU yes
Health Status yes yes
Alerting Storage
POOL
VOLUME
yes yes