OS X Server Quota configuration bug

In the Mountain Lion Server User configuration panel, you can set a disk quota for each user. Be warned that setting a “really large” quota (500GB in my test) can cause quota errors. I don’t know whether the value is setting a high bit and ‘going negative’ or overflowing some variable so it wraps around to a small value, but there it is.

Fixing Time Machine Skippage

Time Machine has been skipping some folders on my work machine, and every simple trick I tried failed to make it back them up. Finally, I dug deep and found the problem: the OS X Extended Attributes for those folders contained this attribute:com.apple.metadata:com_apple_backup_excludeItem
The problem here is that these folders are part of an Xcode project, and it seems that Xcode is tagging them for exclusion. Not nice.
The “how to remove this” instructions came from stackoverflow.com.
The salient bit from that article is this:

Use the xattr command. You can inspect the extended attributes:

$ xattr s.7z
com.apple.metadata:kMDItemWhereFroms
com.apple.quarantine

and use the -d option to delete one extended attribute:

$ xattr -d com.apple.quarantine s.7z
$ xattr s.7z
com.apple.metadata:kMDItemWhereFroms

Fixing Time Machine Skippage

Time Machine has been skipping some folders, and every simple trick I tried failed to make it back them up. Finally, I dug deep and found the problem: the OS X Extended Attributes for those folders contained this attribute: com.apple.metadata:com_apple_backup_excludeItem

The “how to remove this” instructions came from stackoverflow.com.