Ok, I ran fsck -yf on /volumes/server and here is the output:
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/volumes/server is not a character device
CONTINUE? yes
* /volumes/server (NO WRITE)
CANNOT READ: BLK 16
CONTINUE? yes
THE FOLLOWING DISK SECTORS COULD NOT BE READ: 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26...