We are currently working on a problem with SWH12, which caused it to mount one of its hard drives in read-only mode, and this is subsequently causing problems for every account on this server. We have had to reboot the server and the server is back online again, but it requires an offline fsck of the /home partition, due to errors on that partition.
Those errors caused it to be mounted in read only mode, which is why your websites were acting up.
We do please ask that you bare with us while this disk check is running and completes.
Monday, January 17, 2011