I’d go for historically very uncommon. fsync() meant “write RAM buffers to hard drive,” and if that failed, you were in a world of hurt, and should probably shu

I’d go for historically very uncommon. fsync() meant “write RAM buffers to hard drive,” and if that failed, you were in a world of hurt, and should probably shut down while doing the least amount of additional harm. With NFS, the situation probably changed to “keep trying for a bit, but don’t do anything dramatic.”