Why doesn't Time Machine allow me to backup to my Glyph drive over a network? Glyph Technologies April 25, 2014 16:49 Follow Time Machine doesn't backup to network volumes unless you are using Mac OS X Server. Related articles Can you suggest a simple way to backup my Glyph drive in Mac OS X? What is the Mac OS Journaled File System? What is the difference between SATA (Serial ATA) and eSATA (external SATA)? Comments 0 comments Article is closed for comments.