If you’ve installed the MediaServer or PhotoStation packages on your Synology NAS you’ve probably noticed @eaDir directories popping up everywhere. These are “hidden” folders equivalent to thumbs.db on Windows where the package stores thumbnail files associated with iTunes support. If you’re not using iTunes you don’t need these directories. You can remove them in two steps:

Disable the Service Creating Them

SSH in as root and run the following:

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cd /usr/syno/etc.defaults/rc.d/
chmod 000 S66fileindexd.sh S66synoindexd.sh S77synomkthumbd.sh S88synomkflvd.sh S99iTunes.sh

Remove the existing directories

Again in SSH use the following to locate them (cd to your volume root first):

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find . -type d -name "@eaDir"

and if you’re feeling adventurous you can automatically delete them like so:

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find . -type d -name "@eaDir" -print0 | xargs -0 rm -rf