Enclosure Information and Status

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If the device selected was mounted in a SES-compliant enclosure, or SAF-TE enclosure, and it is capable of communicating with the enclosure services processor, the pressing the Enclosure button will cause one similar to this to appear. Note that the Enclosure button will not be selectable unless the Poll (SES/SAF-TE-Compliant) Enclosures function on the main Alert menu has been enabled. Otherwise, SMARTMon will not send the necessary commands to determine whether or not a device is actually in an intelligent enclosure.


In this situation, the software shows a Xyratex model SS-1202-FCAL enclosure which is running firmware release B1 in the SES electronics. The world wide name for it is 50-05-0C-C0-00-00-32-96. (All fibre channel devices have unique world- wide-names, which are used for identification purposes).

Details are:

·	The overall status is critical, which would cause an alert to be generated, if the feature was enabled.

·	A physical device is located in all slots except #15 (values are shown in hex), and all are operational.

·	Redundant power supply #0 has a critical DC failure, which means it is not supplying power to the enclosure backplane.

·	The cooling elements are fans. SES allows for 7 speeds, but your enclosure may not support variable fan speeds.

·	The audible alarm is operational, and sounding the critical tone.

·	No UPS is installed, however this enclosure supports one. If one was installed, and the UPS was intelligent, then SMARTMon would report how many minutes the battery would last under current load.

·	In addition to reporting temperature, the enclosure may also report that it has reached a warning threshold which means it may go into thermal shutdown if temperature continues to increase. The minimum reportable temperature is 20 degrees C.

You will notice that many elements are unsupported. That is either because your enclosure doesn't have those features, or the enclosure monitoring electronics don't report them.

For each element, the following status information is possible, as defined in the specification, and supported by this software.

·	Unsupported - Status detection is not implemented in this enclosure

·	OK - Element is installed and no error conditions are known.

·	Critical - Critical condition is detected

·	Non Critical - Non critical condition is detected

·	Unrecoverable - Unrecoverable condition is detected

·	Not Installed - Element is not installed in enclosure

·	Unknown - Sensor has failed or element status is not available

·	Not Available - Element is installed, no known errors, but the element has not been turned on or set into operation.

Element Types:
The official ANSI specification for enclosure monitoring supports the following element types. SMARTMon was written to support the specification, and will display information for all fields which are not defined as vendor-specific. If your enclosure has vendor-specific fields that you wish to support, please contact us. We will endeavor to add those fields in the next program release.

The following section covers each device element in detail.

Device Element:
A device is something that is plugged into a slot. It is typically a disk drive, but some enclosures support things like DAT tape drives, and CDROMs. SMARTMon reports the slot address (same as SCSI target address), which is vendor specific. You will have to contact your enclosure vendor to find out what particular row and column corresponds to each slot address. This is how SES works, and is not a limitation of SMARTMon. The text below shows all of the device fields. The information in red is what will appear in the element status text box.

·	Identity: The device was instructed to provide a visual indication of where it is. (Ident=ON)

·	Fault Sensed: The enclosure has detected a fault condition and may be sending a visual fault indication. (Fault=ON)

·	Device Off: The device is turned off. (Device=OFF)

·	Enable Bypass A: Indicates Port "A" of a dual-ported device has been bypassed at the request of an application client, the enclosure, or the device itself. (PortA=BYPASSED)

·	Enable Bypass B: Indicates Port "B" of a dual-ported device has been bypassed at the request of an application client, the enclosure, or the device itself. (PortB=BYPASSED)

·	Bypass A Enabled: indicates that port "A" is bypassed under control of the device. The device may be removed, turned off, not operational, or controlling the bypass signals under control of the device server. (ByPassA=ENABLED)

·	Bypass B Enabled: indicates that port "B" is bypassed under control of the device. The device may be removed, turned off, not operational, or controlling the bypass signals under control of the device server. (ByPassB=ENABLED)

In addition, of your enclosure supports an Array Status page (page 6), then you may also see the below fields:

·	OK: None of the below are applicable to the device. (OK)

·	Hot Spare: Set to indicate that the hot spare indicator is turned on. (HotSpare)

·	Consistency Check in Progress: The device is participating in an array consistency check activity. (ConsCheck)

·	In Critical Array: The device is participating in an array which would be degraded or become unavailable if the device were removed. (InCritArray)

·	In Failed Array: The device is a member of an array that failed. (InFailedArray)

·	Rebuild/Remap: This shows that the device is participating in a rebuild or remap of the array contents. (Rebuilding)

·	Rebuild/Remap Abort: Indicates that the rebuild or remap of the array contents has been unsuccessfully terminated (R/R Abort)

Power Supply Element:
This supplies power to the array. If your array is a high-availability array, then there will normally be more than one. The below will be reported for each element:

·	OK: None of the below are applicable to the device. (OK)

·	DC Over voltage: An over voltage condition has been detected at the power supply output. (DC Over voltage)

·	DC Under Voltage: An under voltage condition has been detected at the power supply output. (DC Under voltage)

·	DC Over Current: An over current condition has been detected at the power supply output. (DC Over current)

·	AC Failure: The power supply is not receiving the specified AC power. (AC failure)

·	DC Failure: The power supply is unable to supply the desired DC (output) power. (DC failure)

·	Over Temperature Failure: The power supply has detected a temperature higher than a safe operating temperature. The power supply may shut down, if it has that capability. (OverTemperature failure)

·	Over Temperature Warning: The power supply has detected a temperature that is safe, but higher than normal operating temperature. The warning is cleared when normal operating temperature is again detected. (OverTemperature warning)

·	Failure LED On: The failure indicator is on, or requested to be on. ([LED ON])

Cooling Element:
Cooling elements include fans, blowers, and other cooling mechanisms.The below will be reported for each element:

·	OK: None of the below are applicable to the device. (OK)

·	Failure LED On: The failure indicator is on, or requested to be on. ([LED ON])

·

Fan Speed: There are seven supported speed codes, from highest to lowest speed, they are reported as: highest speed, intermediate speed, speed 5, speed 4, speed 3, second lowest speed, and lowest speed. Most SES enclosures are intelligent enough to increase fan speed once temperature and/or current requirements require greater cooling.

Temperature Sensor Element:
The temperature sensor element provides temperature indications to the application client, and to the enclosure so it may initiate thermal shutdowns or increase cooling as required. The below will be reported for each element:

·	Temperature: The current temperature is reported in degrees Celsius as well as Fahrenheit.

·	Overtemp Failure: The temperature is higher than a safe operating temperature, or higher than the programmable threshold value (SMARTMon does not let you reprogram this threshold, and not enclosures support this feature). (Overtemp failure)

·	Overtemp Warning: The temperature is higher than a normal operating temperature, or higher than the programmable threshold value (SMARTMon does not let you reprogram this threshold, and not enclosures support this feature). (Overtemp warning)

·	Undertemp Failure: The temperature is lower than a safe operating temperature, or lower than the programmable threshold value (SMARTMon does not let you reprogram this threshold, and not enclosures support this feature). (Undertemp failure)

·	Undertemp Warning: The temperature is lower than a normal operating temperature, or lower than the programmable threshold value (SMARTMon does not let you reprogram this threshold, and not enclosures support this feature). (Undertemp warning)

Door Lock Element:
This indicates if the device bay door is locked. (Not all enclosures have this capability. If it does, then each lock will display either LOCKED or UNLOCKED).

Audible Alarm Element:
This tells you what kinds of audible alarms the enclosure is sending.The below will be reported for each element:

·	Muted: No sounds will be emitted, even if array is in critical state. (Muted)

·	Enabled: Sounds will be emitted, this value is mutually exclusive with the Muted setting. (Enabled)

·	Remind State: This state means the alarm will typically sound every 30 seconds or so, instead of continuously. ([Remind State])

·	Sounding Unrecoverable: The alarm is emitting the tone specific to an unrecoverable condition. (sounding UNRECOVERABLE)

·	Sounding Critical: The alarm is emitting the tone specific to a critical condition. (sounding CRITICAL)

·	Sounding Non-Critical: The alarm is emitting the tone specific to a non-critical condition. (sounding NON-CRITICAL)

·	Sounding Informational: The alarm is emitting the tone specific to an informational condition. (sounding INFO)

Enclosure Services Enclosure Electronics Element:
This is used to mark if the selected element is the active enclosure services processor. Some arrays have more than one SES processor. If the device that you originally selected is assigned to be the active enclosure services processor, then the screen will report ACTIVE, otherwise it will report PASSIVE.

SCC Controller Electronics Element:
This is used to mark if the selected element is the active SCC controller. If your enclosure uses this feature, then it will report either MASTER or SLAVE.

Non volatile Cache Element:
The resulting output of this element is vendor specific. Because of this, SMARTMon will report the 4-byte hex result code which will have to be interpreted by consulting your enclosure manufacturer.Sample output would be: device returns vendor-specific data bytes 02 4D 6F A3.

Uninterruptible Power Supply Element:
This element reports the status of the UPS and its battery.The below will be reported for each element:

·	OK: None of the below are applicable to the device. (OK)

·	Battery capacity: How many minutes the battery will continue to power the array under the current load, in event of a power failure. (Battery capacity is 90 minutes)

·

Fan Speed: There are seven supported speed codes, from highest to lowest speed, they are reported as: highest speed, intermediate speed, speed 5, speed 4, speed 3, second lowest speed, and lowest speed. Most SES enclosures are intelligent enough to increase fan speed once temperature and/or current requirements require greater cooling.

·	AC Low: The AC line voltage is lower than its specified range. (AC Low)

·	AC High: The AC line voltage is higher than its specified range. (AC High)

·	AC Quality: The quality of the AC line voltage is outside its specified range. (AC Quality)

·	AC Failure: The power supply is not receiving the specified AC power. (AC failure)

·	DC Failure: The power supply is unable to supply the desired DC (output) power. (DC failure)

·	UPS Failure: The UPS has failed and can not provide power. (UPS failure)

·	Low Battery Power Warning: The battery is powering the array and power will be available for less than the number of minutes specified by the low power threshold. (Low batter power warning)

·	SES Failure To Battery: The interface circuitry to the UPS has failed, so other readings may be impossible to determine. (SES Failure to battery)

·	Battery Failure: The battery has failed. The definition of battery failure is vendor specific, so you must contact your supplier to determine proper course of action. (Battery Failure)

·	Predictive Battery Failure: The battery is approaching a failure condition. This field is also vendor specific. (PREDICTIVE Battery Failure)

Display Element:
This would typically be an alphanumeric display. The resulting output of this element is vendor specific. Because of this, SMARTMon will report the 4-byte hex result code which will have to be interpreted by consulting your enclosure manufacturer. Sample output would be: device returns vendor-specific data bytes 02 4D 6F A3.

Key Pad Entry Device Element:
The resulting output of this element is vendor specific. Because of this, SMARTMon will report the 4-byte hex result code which will have to be interpreted by consulting your enclosure manufacturer. Sample output would be: device returns vendor-specific data bytes 02 4D 6F A3.

SCSI port/transceiver for Enclosure Control Status Element:
As most enclosures have more than one port which can be used to send and retrieve SES information. This element tells you which one was used to facilitate sending and retrieving SES information. The below will be reported for each element:

·	Report: Indicates whether or not this port was used. The output will either be This device did not participate in transmission of SES info, or This device did NOT participate in transmission of SES info.

·	Port Disabled: The SCSI port/transceiver is disabled. (Port DISABLED)

·	Link Down: This indicates there is a loss of link and the SCSI port/transceiver is not receiving any input signals at its receiver. (Link DOWN)

·	Transmit Failure: The SCSI port/transmitter has failed or is operating outside of its specification. (XMIT FAIL)

Language Element:
This returns a language code which will either be 0000 (indicating USA - English language), or a two-character alphanumeric value defined by ISO 639 to indicate which language is used.

Communication Port Element:
This indicates whether or not the communication port is enabled or disabled. If your enclosure uses this feature, then it will report either ENABLED or DISABLED.

Voltage Sensor Element:
This element reports additional information about the input AC power.The below will be reported for each element:

·	Input Voltage: The AC input voltage will be reported in 10 millivolt increments, converted to AC Volts root mean square (RMS) (Input voltage 126.3 VAC RMS)

·	Over Voltage Warning: The supply voltage has exceeded the high warning threshold value, as defined by the enclosure manufacturer. (Overvoltage warning)

·	Under Voltage Warning: The supply voltage has fallen below the low warning threshold value, as defined by the enclosure manufacturer. (Undervoltage warning)

·	Critical Over Voltage: The supply voltage has exceeded the critical warning threshold value, as defined by the enclosure manufacturer. (Critical Overvoltage)

·	Critical Under Voltage: The supply voltage has fallen below the critical warning threshold value, as defined by the enclosure manufacturer. (Critical Undervoltage)

Current Sensor Element:
This element reports additional information about the input AC current.The below will be reported for each element:

·	Input Current: The AC input current will be reported in 10 milliamp increments (drawing 13.2 Amperes)

·	Over Current Warning: The supply current has exceeded the high warning threshold value, as defined by the enclosure manufacturer. (Overcurrent warning)

·	Critical Over Current: The supply current has exceeded the critical warning threshold value, as defined by the enclosure manufacturer. (Critical Overvcurrent)

SCSI Target Port Element:
This indicates whether or not this communication which is used as part of the path for transmitting the enclosure status pages are enabled or disabled. If your enclosure uses this feature, then it will report either ENABLED or DISABLED. In addition, if this port was used for returning this status information, then SMARTMon will also display REPORTING.

SCSI Initiator Port Element:
This indicates whether or not this communication which is used as part of the path for transmitting the enclosure status pages are enabled or disabled. If your enclosure uses this feature, then it will report either ENABLED or DISABLED. In addition, if this port was used for returning this status information, then SMARTMon will also display REPORTING.

Simple Sub-enclosure Element:
The resulting output of this element is vendor specific. Because of this, SMARTMon will report the 4-byte hex result code which will have to be interpreted by consulting your enclosure manufacturer. Sample output would be: device returns vendor-specific data bytes 02 4D 6F A3. The output is used for a short enclosure status summary.