Nexenta Volume Status Test

To ensure peak storage performance, storage administrators should continuously track the status and space usage of each of the volumes in the NexentaStor device, proactively identify faulty, unavailable, and space-hungry volumes, and promptly remedy the problem condition. If this is not done, the abnormal state of or the lack of space in some volumes may go unnoticed, causing I/O requests to the device to fail consistently! This is where the Nexenta Volume Status test helps!

This test auto-discovers the volumes on the NexentaStor and reports the current status and space utilization of the volume. Using this test, you can easily identify abnormal volumes and those that are running short of space.

Target of the test : A NexentaStor appliance

Agent deploying the test : An external/remote agent

Outputs of the test : One set of results for each volume that is to be monitored

Configurable parameters for the test

Parameter	Description
Test period	How often should the test be executed
Host	The host for which the test is to be configured.
Port	The port number at which the specified Host listens to. By default, this will be NULL.
Timeout	Specify the duration (in seconds) within which the SNMP query executed by this test should time out in this text box. The default is 10 seconds.

Measurements made by the test

Measurement	Description	Measurement Unit	Interpretation
Allocated size	Indicates the amount of space that is currently in use in this volume.	MB
Free size	Indicates the amount of space that is currently available for use in this volume.	MB	A high value is desired for this measure. Compare the value of this measure across the volumes to identify the volume with the least space. You may want to expand the storage capacity of such volumes, by adding more disks to them.
Utilized	Indicates the percentage of space that is currently utilized in this volume.	Percent	A value close to 100% indicates that the volume is currently running out of space. Compare the value of this measure across the volumes to know which volumes are experiencing a space crunch right now. You may want to expand the storage capacity of such volumes, by adding more disks to them.
Status	Indicates the current status of this volume.		The values that this measure can report and their corresponding numeric values are tabulated below: Measure Value Numeric Value Offline 0 Online 1 Degraded 2 Unavail 3 Faulted 4 Removed 5 Note: By default, this measure reports the above-mentioned Measure Values while indicating the status of the volume. However, in the graph of this measure, volume status will be represented using the corresponding numeric equivalents only.