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HP UNIX - Device file name conversion



Both HP-UX and Sun Solars uses almost same device file naming convention. Typically it look like as follows:

c#t#d#

Let us try to understand what those letters

  • c - Instance number of interface card
  • t - SCSI target address
  • d - Device number aka SCSI LUN

Use ioscan command to get information about your device under HP-UX. A block device file is always in /dev/dsk and a character device file in /dev/rdsk directory.

  • /dev/dsk/c0t5d0 - Block device file
  • /dev/rdsk/c0t5d0 - Raw device file





Labels: HP-UX

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I'm Madesh, An UNIX System Admin by Profession. I'm having Expertise in HP-UX and Linux Administration. I have done lot of work on the infrastructure Mgmt side in UNIX system administration, Hardware, Storage (EMC/ HP EVA). I'm blogging since 2010.
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