Note to self:
Update the Windows Home Server ASAP. Read this on Ars Technica.
From Ars Technica:
The WHS team reproduced the problem (KB950190) and has now released a fix in the form of a 545KB download. This update should not be confused with the more serious WHS file corruption bug fix slated for release next month.
I’m worried that Windows Home Server goes boom and data goes bye bye.