what are best practices using Splunk

[dewinston]

what are the best practices for using splunk, and how do you determine storage/sizing

[Ayn]

I believe you are looking for this.

http://docs.splunk.com/Documentation/Splunk

[Drainy]

I also believe you will find this useful

http://wiki.splunk.com/Community:More_best_practices_and_processes

[piebob]

in particular, there is information about storage/sizing here:
http://docs.splunk.com/Documentation/Splunk/latest/Installation/HowHowmuchspaceyouwillneed

[ChrisG]

As well as Hardware capacity planning for your Splunk deployment.