A site collection was missing, nothing in the recycle bin. Get-SPDeletedSite
return nothing. Are there any log that i can trace who and when the site collection got deleted?
Thank you in advance.
Their is no easy way to find who deleted the site collection, once it gone from every where. But still you can try couple of things, may be you get some clue.
Option 1
/_layouts/deleteweb.aspx
(if deleted from the site collection itself) or /_admin/delsite.aspx
(if site collection deleted from Central Admin).Option 2
Lastly, you should check the ULS logs on all sharepoint server and see if you find short url of site collection.
It would be very difficult to find out the user who deleted Site collection. However you can use Get-SPDeletedSite -ContentDatabase "WSS_CONTENT" to obtain a deleted site collection reference object.
It returns object that contain information about deletion time, but not about user who deleted Site.
Follow this link for more information
http://www.dynamics101.com/2014/02/restore-deleted-site-collection-sharepoint/