what are /dev/zd* nodes?

devsk devsku at gmail.com
Tue May 24 13:01:13 EDT 2011


Anybody know what these are?

# l /dev/zd*
brw-rw---- 1 root disk 230,  0 May 23 20:30 /dev/zd0
brw-rw---- 1 root disk 230, 16 May 23 20:30 /dev/zd16
brw-rw---- 1 root disk 230, 32 May 23 20:30 /dev/zd32
brw-rw---- 1 root disk 230, 48 May 23 20:30 /dev/zd48

# fdisk -l /dev/zd16

Disk /dev/zd16: 2147 MB, 2147483648 bytes
16 heads, 63 sectors/track, 4161 cylinders, total 4194304 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/zd16 doesn't contain a valid partition table

-devsk



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