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Measures reported by EMCPvMeExpandStTest
This test reports the current status of the expander present in the EMC PowerVault ME storage system and the status of the SES elements available in the expander.
Outputs of the test :One set of results for every expander being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| status |
Indicates the current status of this expander. |
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The values reported by this measure and its numeric equivalents are mentioned in the table below:
| Measure Value |
Numeric Value |
| Enabled-Degraded |
0 |
| Disabled |
1 |
| Enabled - Healthy |
2 |
| Unavailable |
3 |
Note:
By default, this measure reports the above-mentioned Measure Values while indicating the current status of this expander. However, in the graph of this measure, status will be represented using the corresponding numeric equivalents only. |
| elemStatus |
Indicates the current status of the SES elements available in this expander. |
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Most SCSI enclosure products support a protocol called SCSI Enclosure Services (SES). The initiator can communicate with the enclosure using a specialised set of SCSI commands to access power, cooling, and other non-data characteristics. The SCSI initiator communicates with an SES device using two SCSI commands: Send Diagnostic and Receive Diagnostic Results.
Some universal SCSI commands such as Inquiry are also used with standalone enclosure services to perform basic functions such as initial discovery of the devices. These commands can be addressed to a specific SES element in the enclosure. There are many different element codes defined to cover a wide range of devices. The most common SES elements are power supply, cooling fan, temperature sensor, and UPS.
The values reported by this measure and its numeric equivalents are mentioned in the table below:
| Measure Value |
Numeric Value |
| Disabled |
0 |
| Error |
1 |
| Non-critical |
2 |
| Unknown |
3 |
| OK |
4 |
| Not Used |
5 |
Note:
By default, this measure reports the above-mentioned Measure Values while indicating the current status of the SES elements. However, in the graph of this measure, the same will be represented using the corresponding numeric equivalents only.
The detailed diagnosis of this measure if enabled, lists the PHY type of the SES element and the primary reason for the health of the SES element. |
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