SolidFire Drives Test
When a node is added to the SolidFire cluster, or new drives are installed to an existing node, the drives are available to be added to the SolidFire cluster. If a single drive in the SolidFire cluster is over-utilized or is unable to process I/O requests quickly, it can damage the user experience with the entire storage system. It is hence the responsibility of the storage administrator to keep an eye out for space contentions and processing bottlenecks with each of the drives, detect such anomalies even before they occur, and resolve them before users complain. The SolidFire Drives test helps the storage administrator discharge his duties efficiently.
This test auto-discovers the drives of the SolidFire storage system and reports the status, space utilization and processing ability of each of the drives. This enables administrators to proactively detect a potential slowdown in processing or a probable drive contention, identify which drive is contributing to these abnormal phenomena, and intervene to ensure that the problem is resolved before it spirals out of control.
Target of the test : A SolidFire Storage System
Agent deploying the test : An internal agent
Outputs of the test : One set of results for each Drive Type:Drive on the target SolidFire storage system.
| Parameter | Description |
|---|---|
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Test Period |
How often should the test be executed. |
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Host |
The IP address of the host for which this test is to be configured. |
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Port |
The port at which the server listens. |
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SolidFire API Version |
Specify the API version of the SolidFire storage system to be monitored. |
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SolidFire Username and SolidFire Password |
Provide the credentials of a user who has been assigned with a Monitor role to access the SolidFire storage system in the SolidFire Username and SolidFire Password text boxes. |
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Confirm Password |
Confirm the SolidFire Password by retyping it here. |
| Measurement | Description | Measurement Unit | Interpretation | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Status |
Indicates the current state of this drive. |
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The values that this measure can report and their corresponding numeric values have been discussed below:
Note: By default, this measure reports the States listed in the table above to indicate the current state of this drive. The graph of this measure however, represents the same using the numeric equivalents only. |
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Active sessions |
Indicates the number of active iSCSI sessions on this drive. |
Number |
This measure will be available only for metadata drive type. |
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Failed die count |
Indicates the number of failed hardware elements in this drive. |
Number |
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Life remaining |
Indicates the percentage of lifetime available in this drive. |
Percent |
Indicator |
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Power on hours |
Indicates the number of hours since this drive was powered on. |
Hours |
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Reallocated sectors |
Indicates the number of bad sectors that were replaced in this drive. |
Number |
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Reserve capacity |
Indicates the percent of data available as reserve on this drive. |
Percent |
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Average life time read bandwidth |
Indicates the average amount of data read for the lifetime from this drive per second during the last measurement period. |
MB/Sec |
A consistent decrease in the value of these measures for a drive indicates an I/O processing bottleneck.
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Average life time write bandwidth |
Indicates the average amount of data written for the lifetime to this drive per second during the last measurement period. |
MB/Sec |
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Average read bandwidth |
Indicates the average rate at which data was read from this drive during the last measurement period. |
MB/Sec |
A consistent decrease in the value of these measures for a drive indicates an I/O processing bottleneck.
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Average write bandwidth |
Indicates the average rate at which data was written to this drive during the last measurement period. |
MB/Sec |
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Average bandwidth |
Indicates the average rate at which data was read from and written to this drive during the last measurement period. |
MB/Sec |
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Average read IOPS |
Indicates the average rate at which read operations were performed on this drive during the last measurement period. |
IOPS |
A consistent decrease in the value of these measures for a drive indicates an I/O processing bottleneck.
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Average write IOPS |
Indicates the average rate at which write operations were performed on this drive during the last measurement period. |
IOPS |
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Total IOPS |
Indicates the average rate at which read and write operations were performed on this drive during the last measurement period. |
IOPS |
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Total space |
Indicates the total capacity of this drive. |
GB |
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Used space |
Indicates the amount of space utilized in this drive. |
GB |
A low value is desired for this measure. |
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Used space Percent |
Indicates the percentage of space utilized in this drive. |
Percent |
A value close to 100 is an indication that the drive is about to run out of space. You may want to consider more drives, in this case, to make more space. |
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Free space |
Indicates the amount of space available for use in this drive. |
GB |
A high value is desired for this measure. |
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Free space Percent |
Indicates the percentage of space available for use in this drive. |
Percent |
A value close to 0 is an indication that the drive is about to run out of space. You may want to consider more drives, in this case, to make more space. |
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Used memory |
Indicates the amount of memory current used by the node hosting this drive. |
GB |
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