| elemStatus |
Indicates the current status of the SES elements available in this expender. |
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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 that this measure can report and the their corresponding numeric values are tabulated 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, the graph of this measure will be represented using the corresponding numeric equivalents of the states as mentioned in the table above.
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. |