Is it possible to programmatically determine what the device path of a device in a SAN is for a host? Is it possible to definitely say that a tape device in a SAN is /dev/rmt0 on a host and if not, why not? Is this possible when the device is directly connected to the system?
Yes, you can determine the device path for a device in a SAN exactly the same way that you do with direct attached devices on a SCSI bus. The SCSI driver level for the FC HBA takes care of this transparently.
For most tape devices -- they will be behind some kind of FC/SCSI router or bridge. Changes to the SAN configuration can screw this up, just as changes to the SCSI bus will screw things up.
Editor's note: Do you agree with this expert's response? If you have more to share, post it in one of our .bphAaR2qhqA^0@/searchstorage>discussion forums.
Dig deeper on SAN management
Related Q&A from Marc Farley
Mark Farley discusses the difference between iFCP and FCIP.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.