storage engine and checksum of content

[fluca1978]

Hi all,
I'm just curious if Alfresco has already a way to guarantee that what you put into the repository is the same thing you can get out, even in the presence of disk corruption. I mean, is there an hashing/checksum on the content placed into the repository?

Thanks.

[ozgeayaz]

Hi All,

I use  Alfresco-4.2.e.I wonder how to alfresco keep permission document.Does a json, a document  or database included ?