$attachinfo shows your space used for attachments on disk vs what the db reports; this will only load if you are running a non-beta release, and you have debugging turned on. This behavior is handled by:
admin/dashboard.php - Look for line ~107-128
templates/default/admin/dashboard.tmpl


edit: the comment for the $attachinfo string within the dashboard.php file:
Quote
// Grab total attachments and size from the directory
// Because this process can be disk intensive, this option
// is only displayed when debugging is enabled.

Last edited by isaac; 01/07/2019 8:21 AM. Reason: added php script comment to post
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