How are Linux drives named beyond drive 26 (/dev/sdz, ..)?

“It’s surprisingly hard to find a definitive answer to the
question of what happens with Linux block device names when you get
past drive 26 (ie. counting from one, the first disk is /dev/sda
and the 26th disk is /dev/sdz, what comes next?) I need to find out
because libguestfs is currently limited to 25 disks, and this
really needs to be fixed.

“Anyhow, looking at the code we can see that it depends on which
driver is in use.

“For virtio-blk (/dev/vd*) the answer is:”

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