HPE Community read-only access December 15, 2018
This is a maintenance upgrade. You will be able to read articles and posts, but not post or reply.
Hours:
Dec 15, 4:00 am to 10:00 am UTC
Dec 14, 10:00 pm CST to Dec 15, 4:00 am CST
Dec 14, 8:00 pm PST to Dec 15, 2:00 am PST
System Administration
cancel
Showing results for 
Search instead for 
Did you mean: 

persistant and legacy device file

 
kunjuttan
Super Advisor

persistant and legacy device file

Hi All,

  What is the diference between persistant and legacy device file.

2 REPLIES
Torsten.
Acclaimed Contributor

Re: persistant and legacy device file

The legacy device file e.g. /dev/dsk/c1t2d3 is path dependend and you have one per path.

 

The new DSF are not path dependend and you have one per device, e.g. /dev/disk/disk7

 

To translate it use

 

# ioscan -m dsf


Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!   
pranav026
Advisor

Re: persistant and legacy device file

Persistent device files ("/dev/disk") use device unique ID to identify the device(SAN devices which have unique WWN). And Legacy ("/dev/dsk", ctd) devices are created one for each ctd path. User need to keep track of the active path using multipathing software for ctd devices. There is document "HP-UX 11i v3 Persistent DSF Migration Guide" for more information on the persistent and legacy devices. You can check them using "ioscan -m dsf".