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Sizing Inputs Calculator for Splunk

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Admins: Please read about Splunk Enterprise 8.0 and the Python 2.7 end-of-life changes and impact on apps and upgradeshere.
Overview
Details
The Sizing Inputs Calculator for Splunk is only intended for use in collaboration with your Splunk Account team.

The Sizing Inputs Calculator for Splunk does not collect or transmit customer data.

The Sizing Inputs Calculator for Splunk is used by your Splunk Account team to accelerate the discovery of technical details for sizing the Splunk architecture.

The Sizing Inputs Calculator for Splunk app includes a dashboard with details of the existing Splunk deployment. This dashboard will generate the following metrics:

- Physical CPU Cores, Memory Size (GB)
- Storage Information
- Additional Headroom
- Daily Indexing Volume
- Daily Search Count
- Scheduled/Data Model Acceleration Searches
- Search Concurrency
- Sourcetypes & Daily Ingestion Volume - Enterprise Security
- Ad Hoc Searches Count
- Historical Data Searches
- Correlation Search - Enterprise Security
- Built-in Saved Search - Enterprise Security
- Daily Search Count - Enterprise Security
- Historical Data Searches - Enterprise Security

*See the details tab for more specific instructions about this app.

Instructions

Prerequisites

  • The Sizing Inputs Calculator for Splunk requires visibility to all Search Heads and Indexers in the deployment. Therefore, it is recommended to install the Sizing Inputs Calculator for Splunk on a Splunk instance that has a Monitoring Console, or a Splunk instance for which all search heads and indexers are set up as search peers.
  • The Sizing Inputs Calculator for Splunk assumes that the instance it is running on conforms to the Splunk recommended hardware. If the instance this app is running on does not conform to the Splunk recommended hardware, there may not be enough concurrent searches for the dashboard to render.

Install

Install the Sizing Inputs Calculator for Splunk in accordance to the documentation for a Single Server Install.

Configuration

This app uses a search macro to easily select the earliest time (in days) that the searches should look back. The macro is called earliest and it is currently set to look back 7 days by default.

For example, the Daily Search Count search utilizes the earliest search macro:

`earliest` latest=@d index=_audit host=* action=search sourcetype=audittrail search_id!="*rsa_*" search_id!="*subsearch*" | timechart span=1d dc(search_id) AS "Daily Search Count" | stats perc95("Daily Search Count") AS "Daily Search Count"

This earliest macro can easily be edited to change to look back a different time range that that set by default:

  1. Select Settings > Advanced Search > Search macros
  2. Click on the earliest macro and change its definition (earliest=-7day@day) as desired

Usage

After installing the Sizing Inputs Calculator for Splunk, users can navigate to the Sizing Inputs Calculator for Splunk app to view a dashboard that renders sizing information about the deployment. Users should share this information back to their Splunk Account team by exporting the dashboard as a PDF.

Known Issues

There are no known issues at this time.

Questions

Click on the “Questions on Splunk Answers” link on the right side to post any questions.

Release Notes

Version 1.0.6
Aug. 28, 2020

19
Installs
69
Downloads
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