NetApp E-Series Storage Space Test

This test monitors the disks in the target NetApp E-Series Storage system and reports the storage status of disks. In addition, this test reports the hot spare size and unconfigured space. A high amount of unconfigured space might indicate that storage resources are not being fully utilized, which is inefficient. Administrators may need to better manage or reallocate resources to avoid wastage.

Target of the test : NetApp E-Series Storage

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each storage disk in the NetApp E-Series Storage that is currently launched.

Configurable parameters for the test
Parameters Description

Test Period

How often should the test be executed.

Host

The nick name of the NetApp E-Series Storage component for which this test is to be configured.

Port

Refers to the port at which the specified host listens to. By default, this is Null.

Rest API Port

This is the port at which REST API connectivity is provided. By default, port 4443 is used.

Username and Password

To collect performance metrics from the target storage device, the eG agent should be configured with the credentials of a user who is vested with "read-only" privileges to access REST API of the target storage device. Specify the credentials of such a user in the Username and Password text boxes.

Confirm Password

Confirm the password by retyping it here.

SSL

Set the SSL flag to Yes, if SSL (Secured Socket Layer) is to be used to connect to the target Storage System, and No if it is not.

Timeout Seconds

Specify the time duration for which this test should wait for a response from the storage system in the Timeout text box. By default, this is 120 seconds.

Measurements made by the test

Measurement

Description

Measurement Unit

Interpretation

Storage status

Indicates the storage status of this disk.

 

The values that this measure can report and their corresponding numeric values are discussed in the table below:

Numeric Value Measure Value
100 Optimal
95 Never Contacted
90 Offline
85 Needs Attention
80 Removed
75 Available

Note:

By default, this measure reports the Measure Values discussed above to indicate the storage status of the disk. In the graph of this measure however, status is represented using the numeric equivalents only.

Hot spare size

Indicates the size of this hot spare disk.

TB

The hot spare size refers to the capacity of the spare disk that is reserved to replace a failed disk. This hot spare must be at least the same size or larger than the smallest disk in the RAID group. Ideally, it's recommended that the hot spare is equal in size or greater than the smallest drive in the array to ensure data protection can be rebuilt efficiently without any risk of running into capacity issues.

Pool space provisioned to volumes percentage

Indicates the percentage of pool space allocated to this disk.

Percent

 

Unconfigured space

Indicates the amount of unconfigured space in this disk.

TB

This measure refers to the portion of disk capacity that is not currently allocated or used by the system for any active data storage. This space is part of the physical drives in the array, but it is not part of any existing volumes or logical units (LUNs) in the system.