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 storage if they have REST API available.
List of monitored metrics by both APIs
| Subsystem | Metric | REST API | CLI (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 |