Dell InsightIQ 4.3.0.0 User Guide

Modules in File System Reports

Modules that are used in File System reports display information about the file system of a monitored cluster.

NOTE: Depending on which version of the OneFS operating system the monitored cluster is running, certain InsightIQ features may not be available.

Current Estimated Usable Capacity

Displays the amount data that can be added to the cluster before the cluster reaches capacity. The module displays the following values:

Allocated Capacity: The storage capacity of nodes that belong to node pools that include three or more nodes. In the OneFS command-line interface, Allocated Capacity is referred to as size in the output of the isi_status command. If all node pools include at least three nodes, the Allocated Capacity is the same as the Total Capacity.
Estimated Additional Protection Overhead: The estimated amount of data protection overhead that is required to protect data if the cluster reaches capacity.
Estimated Usable Capacity: The amount of data that can be added to the cluster before the cluster reaches capacity.
Overhead estimated based on FSA report: Specifies which FSA report to base the Estimated Additional Protection Overhead on. The estimated overhead is calculated based on the ratio of data protection that is required to protect user data at the time that the FSA report was created.
Remaining Capacity: The total amount of storage capacity that is unused on the cluster.
Reserved for Virtual Hot Spares: The amount of storage capacity that is reserved for virtual hot spares.
Snapshots Usage: The amount of data that is occupied by snapshots on the cluster.
Total Capacity: The total amount of storage capacity on the cluster.
Unallocated Capacity: The storage capacity of nodes that belong to node pools that include fewer than three nodes. These nodes are referred to as Unprovisioned Nodes in the OneFS web administration interface.
User Data Including Protection: The amount of storage capacity occupied by user data and protection for that user data.
Writable Capacity: The amount of storage capacity that user data can be written to on the cluster.

Capacity Forecast

Displays the amount data that can be added to the cluster before the cluster reaches capacity. This report module displays the following values.

Allocated Capacity

The storage capacity of nodes that belong to node pools that include three or more nodes. In the OneFS command-line interface, Allocated Capacity is referred to as size in the output of the isi_status command. If all node pools include at least three nodes, the Allocated Capacity is the same as the Total Capacity.

Estimated Additional Protection Overhead

The estimated amount of additional data protection overhead that is required to protect data if the cluster is filled to capacity.

Estimated Usable Capacity

The amount of data that can be added to the cluster before the cluster reaches capacity.

Forecast data

The breakout of information that is are shown in the Forecast chart. The Forecast data includes the following information.

Calculation Range: The highlighted range of data that is used to calculate the forecast.
Forecast Usage: The projected Total Usage over time.
Standard Deviation: The standard deviation of the Forecast Usage calculation.
Outliers: Data points that are significantly outside of the range of the bulk of the Calculation Range data. Depending on the frequency and amount of variation, these points can have a major impact on the accuracy of the Forecast Usage data.

Overhead estimated based on FSA report

Specifies which FSA report to base the Estimated Additional Protection Overhead on. The estimated overhead is calculated based on the ratio of data protection that is required to protect user data at the time that the FSA report was created.

Provisioned Capacity

The storage capacity of nodes that belong to node pools.

Remaining Capacity

The total amount of storage capacity that is unused on the cluster.

Reserved for Virtual Hot Spares

The amount of storage capacity that is reserved for virtual hot spares.

Snapshots Usage

The amount of data occupied by snapshots on the cluster.

Total Capacity

The total amount of storage capacity on the cluster.

Total Usage

The total amount of user data and the associated Protection Overhead that is stored on the cluster.

User Data Including Protection

The amount of storage capacity that is occupied by user data and protection for that user data.

Writable Capacity

The amount of storage capacity that user data can be written to on the cluster.

Y-axis

The scale used on the Y-axis for the Forecast chart.

Percent: Forecast data as a percentage of total disk capacity.
Bytes: Forecast data expressed as actual bytes in use.

Directories

Displays disk-usage data and file counts per directory, recursively. You can sort the information by clicking a column heading in the table view. Resorting causes the chart on the left to reload and display a visual representation of the specified information. You can click pathnames to view more specific information about any subdirectories contained in the directory. You can also create a filter for a specific directory that you can use to filter data in other InsightIQ views.

Deduplication Current Summary (Physical)

Displays information about the current state of deduplication on the cluster. This module refers to the estimated physical space and data, meaning that file metadata and protection overhead are considered. The module displays the following values:

Deduplicated Data: The amount of data that has been deduplicated.
Space Saved: The amount of space that deduplication has saved on the cluster.
Space Used: The amount of space that deduplicated data currently occupies on the cluster.
Total Capacity: The total amount of storage capacity on the cluster.
Total Usage: The total amount of data that is stored on the cluster.

NOTE: The information that is displayed in this module always refers to the current state of the cluster and is not influenced by the selected date range.

Deduplicated Blocks per Job

Displays the number of blocks that were deduplicated compared to the number of blocks that were scanned by a given deduplication job.

File Count by Last Changed

Displays the total number of files that were last changed within a specified time range. For example, the monitored cluster might contain 38,734 files that were last changed between 14 days and 21 days ago. You can optionally break out this data by node pool, logical size, extension, directory, or physical size.

File Count by Logical Size

Displays the total number of files in a specified logical-size range. For example, the monitored cluster might contain 3,329,210 files that are between 1 GB and 10 GB in logical size. You can optionally break out this data by changed time, node pool extension, or directory.

File Count by Physical Size

Displays the total number of files in a specified physical-size range. For example, the monitored cluster might contain 23,724 files that are between 100 GB and 1 TB in physical size. You can optionally break out this data by changed time, node pool, extension, or directory.

Files Scanned for Deduplication per Job

Displays the number of files that were scanned by a deduplication job.

Input/Output Bytes per Job

Displays the Input/Output byte throughput for a SmartDedupe job.

Input/Output Operations per Job

Displays the number of Input/Output operations that were performed while a SmartDedupe job was running.

Quota Browser

Deduplicated Data: The amount of data that has been deduplicated.
Paths: Displays whether a quota has been applied on or under a directory. The selected directory determines which quotas are displayed in the Quotas Applied On and Under directory module. This module reflects the current cluster configuration.
Quotas Applied On and Under Directory: Displays the quotas that have been applied on or under the selected directory. The Select a report list determines the point in time that this module represents, regardless of the Date Range selected.

Quota Limit Usage

Displays the usage limits for the selected quota along with the level of data usage for the directory that the quota is applied to. The %Used column shows the usage divided by the highest-level limit. If no hard limit is applied, the soft limit is used. If no soft limit is applied, the advisory limit is used. For example, assume that a quota has no hard limit, a soft limit of 2 TB, and an advisory limit of 1 TB. If the usage for the quota equaled 1 TB, the %Used would be 50%.

Top `<number>` Files by `<element>`

Displays the top files sorted by the specified element. You can configure the maximum number of top-contributing files to display.

Top `<number>` Directories by `<element>`

Displays the top directories sorted by the specified element. You can configure the maximum number of top-contributing directories to display.

Data Reduction Ratio

Displays the Data Reduction Ratio (DRR) for the monitored cluster. The DRR is the ratio of Logical Usage divided by the total Preprotected Physical storage.

Logical Usage - Original user data.
Preprotected Physical - The disk usage consumed after data reduction, including deduplication and compression.

NOTE: Data protection levels are not included in this ratio calculation.

Deduplication Ratio

Displays the ratio for deduplication on the monitored cluster.

Compression Ratio

Displays the ratio for compression on the monitored cluster.

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