Measures reported by UnityiSCSITest
Storage ports help the storage processors receive and process I/O requests. By periodically checking the health of the ports and measuring the I/O load on the ports, you can identify overloaded ports, isolate the storage processor they support, and thus proactively detect potential/existing load-balancing irregularities and/or processing bottlenecks with the storage processors. The UnityiSCSITest test facilitates this port check. For every port configured on each of the storage processors (A and B) supported by the target storage system, this test reports the health of the ports, the I/O load on the ports and the processing ability of the ports. In the process, the test not only points administrators to overloaded ports, but also puts a finger on ports that are slow when processing I/O requests.
Outputs of the test : One set of results for each Storage Processor: iSCSI port combination on the target storage system being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| healthStatus |
Indicates the current health of this I/O module. |
|
The values reported by this measure and its numeric equivalents are mentioned in the table below:
| Measure value |
Numeric Value |
| Normal |
1 |
| Attention |
2 |
| Unknown |
3 |
| Degraded/Warning |
4 |
| Minor failure |
5 |
| Major failure |
6 |
| Critical failure |
7 |
| Non-recoverable error |
8 |
| Unconfigured |
0 |
Note:
By default, this measure reports the Measure Values listed in the table above to indicate the current health of this iSCSI port. The graph of this measure however is represented using the numeric equivalents only - 0 to 8.
The detailed diagnosis of this measure lists the ID, slot, health of the I/O module, model and serial number of the I/O module.
|
| readBandwidth |
Indicates the maximum amount of data read through this port per second. |
MB/sec |
The detailed diagnosis of this measure lists the VNX time, name of the storage processor and the write bandwidth. |
| avgReadBandwidth |
Indicates the average amount of data read through this port per second. |
MB/sec |
|
| writeBandwidth |
Indicates the maximum amount of data written through this port per second. |
MB/sec |
The detailed diagnosis of this measure lists the VNX time, name of the storage processor and the write bandwidth. |
| avgWriteBandwidth |
Indicates the average amount of data written through this port per second. |
MB/sec |
|
| readIOPS |
Indicates the maximum number of read operations performed through this iSCSI port per second. |
IOPS |
The detailed diagnosis of this measure lists the VNX time, name of the storage processor and the read IOPS. |
| avgReadIOPS |
Indicates the average number of read operations performed through this iSCSI port per second. |
IOPS |
|
| writeIOPS |
Indicates the maximum number of write operations performed through this iSCSI port per second. |
IOPS |
The detailed diagnosis of this measure lists the VNX time, name of the storage processor and the write IOPS. |
| avgWriteIOPS |
Indicates the average number of write operations performed through this iSCSI port per second. |
IOPS |
|
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