gcc123 recently suffered from a disk failure, just a few months after being operational. Today, OSUOSL changed the disk and reinstalled the machine. Because there is no RAID on this machine, any user data stored on the machine was lost.
This is a good opportunity to remind that the compile farm is "best effort": we make no promise whatsover about data integrity, so make sure to always have a copy of your important work somewhere else!
The SSH host keys of gcc123 have been restored, so SSH access should work just fine with the reinstalled system.