2 EMC CLARiiON Metrics

This chapter provides descriptions for all EMC CLARiiON metric categories and describes associated metrics for each category. The tables also provide user actions if any of the metrics for a particular category support user actions.

The plug-in can be used to monitor CLARiiON Arrays. Metrics have been provided to monitor the dynamic performance statistics and the static configuration details of the CLARiiON Array.User friendly reports have been provided to view the performance charts of the devices being monitored and the usage of the devices that have databases installed on them.

2.1 Response Metrics

The metrics in this category provide information about the UP/DOWN status of the CLARiiON Array being monitored.

Default Collection Interval — Every 2 minutes

Table 2-1 Response Metrics

Metric	Description	Target Version	Upload Frequency	Operator	Default Critical Threshold	Consecutive Number of Occurrences Preceding Notification	Alert Text
CLARiiON Status	The metric provides the UP/DOWN Status of the CLARiiON target that is being monitored by the plug-in.	All Versions	After Every Sample	=	0	1	%target% is unreachable over the network or is down.

2.2 CLARiiON Applications Metrics

The metrics in this category provide information about the applications that are installed on the array.

Default Collection Interval — Every 10 minutes

Table 2-2 CLARiiON Applications Metrics

Metric	Description
Revision Number	The metric gives the revision number of the software.
Active State	The metric shows if the application is in active or inactive state.
Commit Required	The metric shows if the application has been committed after installation or not.
Revert Possible	The metric is used to know if revert is possible for the installed software or not.
Installation Complete	This metrics provides information whether the installation of the application is complete.
System Software	This metrics provides information whether the installed application is installed on System Software.

2.3 Hosts Connected Metrics

The metrics in this category provide information about the hosts connected to the CLARiiON.

Default Collection Interval — Every 5 minutes

Table 2-3 Host Connected Metrics

Metric	Description and User Action
Host Name	Hosts connected to the CLARiiON.
IP Address	IP address of the host connected to the CLARiiON.

2.4 MetaLUN Statistics Metrics

The metrics in this category provide information about the statistics of the metaLUNs configured on the CLARiiON.

Default Collection Interval — Every 15 minutes

Upload Frequency — After every sample

For these metrics, you can set different warning and critical threshold values for each "MetaLUN ID" object. If warning or critical threshold values are currently set for any "MetaLUN ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "MetaLUN ID" object, use the Edit Thresholds page.

Table 2-4 MetaLUN Statistics Metrics

Metric	Description and User Action	Operator	Consecutive Number of Occurrences Preceding Notification	Alert Text
MetaLUN Name	Name of the MetaLUNs configured in the CLARiiON.
MetaLUN Reads Per Second(IO/s)	Reads Per Second(IO/s) of the configured MetaLUNs.	>	1	Reads Per Second of MetaLUN %meta_id% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
MetaLUN Writes Per Second (IO/s)	Writes Per Second (IO/s) of the configured MetaLUNs.	>	1	Writes Per Second of MetaLUN %meta_id% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
MetaLUN Read Throughput(KB/s)	Read Throughput(KB/s) of the configured MetaLUNs.	>	1	Read Throughput of MetaLUN %meta_id% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
MetaLUN Write Throughput(KB/s)	Write Throughput(KB/s) of the configured MetaLUNs.	>	1	Write Throughput of MetaLUN %meta_id% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
Expansion Rate	Expansion rate of the MetaLUNs.	NA	NA	NA
Percent Expanded	Percentage of the MetaLUN Expanded.	NA	NA	NA

2.5 MetaLUN Statistics Summary Metrics

The metrics in this category provide information about metaLUN statistics summary.

Default Collection Interval — Every 12 hours

Table 2-5 MetaLUN Statistics Summary Metrics

Metric	Description
Avg. MetaLUN Reads Per Second(IO/s)	Average reads per second. The average value is calculated for the collection time interval as configured in the metric.
Avg. MetaLUN Writes Per Second(IO/s)	Average writes per second. The average value is calculated for the collection time interval as configured in the metric.
Avg. MetaLUN Read Throughput(KB/s)	Average read throughput per second. The average value is calculated for the collection time interval as configured in the metric.
Avg. MetaLUN Write Throughput(KB/s)	Average write throughput per second. The average value is calculated for the collection time interval as configured in the metric.

2.6 LUN Statistics Metrics

The metrics in this category provide information about statistics summary of all the LUNs in the CLARiiON Array. Parameters like average reads/writes per second, average read/write throughput are monitored and reported.

Default Collection Interval — Every 15 minutes

For these metrics, you can set different warning and critical threshold values for each "LUN ID" object. If warning or critical threshold values are currently set for any "LUN ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "LUN ID" object, use the Edit Thresholds page.

Table 2-6 LUN Statistics Metrics

Metric	Description and User Action
LUN Read Hit Ratio	Hit Ration on a given LUN. Hit ratio is the number of time the LUN is accessed and the data required is found on the LUN.
LUN Write Hit Ratio	LUN Write Hit Ratio of the configured LUNs.
LUN Total Hard Errors	Total Hard Errors of the LUNs.
LUN Total Soft Errors	Total Soft Errors of the LUN.
LUN Reads Per Second(IO/s)	Reads Per Second(IO/s) of the configured LUNs. Operator - > The consecutive number of occurrences preceding notification - 1 Reads Per Second of LUN %Lun_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
LUN Writes Per Second(IO/s)	Writes Per Second(IO/s) of the configured LUNs. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Writes Per Second of LUN %Lun_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
LUN Read Throughput(KB/s)	Read Throughput(KB/s) of the configured LUNs. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Read Throughput of LUN %Lun_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
LUN Write Throughput(KB/s)	Write Throughput(KB/s) of the configured LUNs. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Write Throughput of LUN %Lun_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold.
LUN Read Cache Hit/Sec	Read Cache Hit per second of the LUNs.
LUN Write Cache Hit/Sec	Write Cache Hit per second of the LUNs.
LUN Queue Length/Sec	Queue Length per second of the LUNs.

2.7 LUN Statistics Summary Metrics

The metrics in this category provide information about the statistics of the LUNs configured on the CLARiiON. Parameters that are monitored are average read/write per second and average read/write throughput.

Default Collection Interval — Every 10 minutes

Table 2-7 LUN Statistics Summary Metrics

Metric	Description and User Action
Avg. Reads Per Second(IO/s)	Average reads per second of the LUNs. The average value is calculated for the collection time interval as configured in the metric.
Avg. Writes Per Second(IO/s)	Average writes per second of the LUNs. The average value is calculated for the collection time interval as configured in the metric.
Avg. Read Throughput(KB/s)	Average read throughput per second of the LUNs. The average value is calculated for the collection time interval as configured in the metric.
Avg. Write Throughput(KB/s)	Average write throughput per second of the LUNs. The average value is calculated for the collection time interval as configured in the metric.

2.8 Storage Processor Metrics

The metrics in this category provide information about the storage processor of a CLARiiON array.

Default Collection Interval — Every 15 minutes

Table 2-8 Storage Processor Metrics

Metric	Description
SP IP	IP of the Storage Processors of the CLARiiON (SP A, SP B).
SP Serial Number	Serial Number of the Storage Processor.
Date	Current Date on the Storage Processors.
Time	Current Time on the Storage Processors.
Day	Current Day on the Storage Processors.
SP Max Requests	Maximum number of requests serviced by the Storage Processors.
SP Average Requests	Average number of requests serviced by a Storage Processor over a time interval.
SP Busy %	Time utilization of the Storage Processors. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - %sp_name% is %value%% busy, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric, you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Idle %	Percentage time for which the Storage Processor is idle.
SP Read Requests Per Second	Read requests per second serviced by the Storage Processors. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Read requests per second of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric, you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Write Requests Per Second	Write requests per second serviced by the Storage Processors. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Write requests per second of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric, you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Reads Per Second	Reads Per Second by a Storage Processor. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Reads per second of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric, you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Writes Per Second	Writes per second by a Storage Processor. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Writes per second of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric, you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Read Throughput	Read throughput of each Storage Processor. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Read throughput of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.
SP Write Throughput	Write Throughput of each Storage Processor. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Write throughput of %sp_name% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "SP Name" object. If warning or critical threshold values are currently set for any "SP Name" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "SP Name" object, use the Edit Thresholds page.

2.9 Disk Statistics Metrics

The metrics in this category provide information about statistics of disks on the CLARiiON. The various parameters that are monitored are reads/writes per second and read/write throughput per second.

Default Collection Interval — Every 15 minutes

Table 2-9 Disk Statistics Metrics

Metric	Description
Disk Reads Per Second(IO/s)	Reads Per Second(IO/s) of each of the Disks on the CLARiiON array. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Reads Per Second of Disk %Disk_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "Disk ID" object. If warning or critical threshold values are currently set for any "Disk ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "Disk ID" object, use the Edit Thresholds page.
Disk Writes Per Second(IO/s)	Writes Per Second(IO/s) on each of the disks. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Writes Per Second of Disk %Disk_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "Disk ID" object. If warning or critical threshold values are currently set for any "Disk ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "Disk ID" object, use the Edit Thresholds page.
Disk Read Throughput(KB/s)	Kilo Bytes of data read per second from the disks on the CLARiiON array. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Read Throughput of Disk %Disk_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "Disk ID" object. If warning or critical threshold values are currently set for any "Disk ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "Disk ID" object, use the Edit Thresholds page.
Disk Write Throughput(KB/s)	Kilo Bytes of data written on the disks on the CLARiiON array. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Write Throughput of Disk %Disk_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "Disk ID" object. If warning or critical threshold values are currently set for any "Disk ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "Disk ID" object, use the Edit Thresholds page.
Disk Utilizatiion %	Percentage utilization of disks of the CLARiiON disks. Operator - > The consecutive number of occurrences preceding notification - 1 Error message - Utilization % of Disk %Disk_ID% is %value%, crossed warning (%warning_threshold%) or critical (%critical_threshold%) threshold. For this metric you can set different warning and critical threshold values for each "Disk ID" object. If warning or critical threshold values are currently set for any "Disk ID" object, those thresholds can be viewed on the Metric Detail page for this metric. To specify or change warning or critical threshold values for each "Disk ID" object, use the Edit Thresholds page.

2.10 Disk Statistics Summary Metrics

The metrics in this category provide statistics summary of the CLARiiON Disks.

Default Collection Interval — Every 10 minutes

Table 2-10 Disk Statistics Summary Metrics

Metric	Description and User Action
Avg. Disk Reads Per Second(IO/s)	Average reads on a disk per second.The average value is calculated for the collection time interval as configured in the metric.
Avg. Disk Writes Per Second(IO/s)	Average writes on a disk per second.The average value is calculated for the collection time interval as configured in the metric.
Avg. Disk Read Throughput(KB/s)	Average read throughput on a disk per second.The average value is calculated for the collection time interval as configured in the metric.
Avg. Disk Write Throughput(KB/s)	Average write throughput on a disk per second.The average value is calculated for the collection time interval as configured in the metric.

2.11 Critical Event Metrics

The metrics in this category provide information about critical events.

Default Collection Interval — Every 15 minutes

Table 2-11 Critical Event Metrics

Metric	Description and User Action
Event Description	Critical events that occurred on the CLARiiON.
SP Name	Name of the Storage Processor on which the critical event occurred.

2.12 Warning Event Metrics

The metrics in this category provide information about warning events.

Default Collection Interval — Every 15 minutes

Table 2-12 Warning Event Metrics

Metric	Description and User Action
Event Description	Description of the event that occurred.
SP Name	Name of the Storage Processor on which the event occurred.