[http://www.greyhole.net/ Greyhole] is Amahi's [[Storage pooling]] technologyof choice. Storage Pooling combines the space of multiple disk drives and makes them look as if they were all part of a single pool of disk space.Greyhole was designed independently of Amahi, however, with feedback and great work, the Greyhole team made it suitable for integration with Amahi. 

Recommend you consult [https://github.com/gboudreau/Greyhole/wiki/WhatNotToPutInGreyholeShares what not to put in Greyhole shares] as a precaution when determining which shares to select.  You can add additional drives to your hda HDA and prepare them for use in Greyhole by following using [[Adding_a_second_hard_drive_to_your_HDA|adding a second hard drive to your HDA]] guidance or use the Amahi [https://www.amahi.org/apps/disk-wizard Disk Wizard] application for (Amahi 7. All others use [[Adding_a_second_hard_drive_to_your_HDA|adding a second hard drive to your HDA]] guidance8 or greater).

== Amahi 7 or greater ==<!Amahi application [https://www.amahi.org/apps/greyhole--Options available ui Greyhole UI] provides this capability. Refer to the [[Greyhole_UI_App_Transition_Guide|Greyhole UI Application Transition guide]] for install details on installation and configuration:.

* [[Amahi_7_Create_Manual_Greyhole_Setup|Manual Greyhole Install]] (no dashboard inegration)-->Amahi application [https'''NOTE://www.amahi.org/apps/greyhole-ui ''' If you would still like to setup your Greyhole UI] provides this capability. Refer to the pool manually, please see [[Greyhole_UI_App_Transition_GuideAmahi_Create_Manual_Greyhole_Setup|Manual Greyhole UI Application Transition guideSetup]] for details on installation and configuration.

* [https://github.com/gboudreau/Greyhole/wiki/MigrateFromWHS Widows Windows Home Server (WHS) Drive Extender Migration Guide]: Move from WHS to Amahi and Greyhole.