how to distinguish dvd rom or hard disk

[alert0919]

how could I determine which is disk or dvd-rom
because i use command
ioscan -fnC disk
I found dvd rom and hard disk ,I only would like to show hard disk only,how to do it
how to distinguish them

I need to use program to distinguish them
my attached file which shows my machine result

thanks

[Michal Kapalka (mikap)]

hi,

the first, there is a comment DVD-ROM

device file : /dev/dsk/c0t0d0

HW path : 0/0/2/0.0.0.0

mikap

[Steven E. Protter]

Shalom,

Right hand column.

Where it says: DVD-ROM

ioscan -fnC disk | grep -v -i dvd-rom

SEP

[Torsten.]

it's very obvious what the DVD is, but because it is a disk too, all 3 are listed in your ioscan.

[Bill Hassell]

ioscan cannot distiguish between different types of disks (ie, CD, DVD, arrays, solid-state, optical RW, etc). At the end of the line, it reports what a SCSI ID request returns from the device. Thus, there is no guarantee what the result will be. Some disks report their product number (ie, Seagate), others report the manufacturer (TEAC, HP, EMC, etc). So there is no generalized way to identify the different types of disks.

[Vishu]

Hi,

I agree with Bill that ioscan does not diffentiate between different types of disks. so, in your case, the only way to get only Hard disk is to use the grep.

# ioscan -fnC disk | grep -v -i dvd-rom

This will give you what you required.

[alert0919]

I try this command ioscan -fnC disk | grep -v -i dvd-rom
it cannot solve my problem

the dvd rom still exist
in my attached file,it shows this situation

[R.K. #]

Hi,

You are getting this o/p as option "-v" is "All lines but those matching are printed"....so the line containing "DVD" is removed but the entry for DVD contains two lines and only One line containing DVD is removed and what you are seeing is the other line.

Regds,
R.K.

[Sivakumar MJ._1]

Hi Alert0919,

Go thru this book page number from 135 - 140.. you will get a clear picture..

[Sivakumar MJ._1]

Hi Alert0919,

Go thru this book page number from 135 - 140.. you will get a clear picture..

http://books.google.com/books?id=Ni3G00IKHh4C&pg=PA138&lpg=PA138&dq=ioscan+output&source=bl&ots=P7ptHXsQwu&sig=dMDhMB_96GQzFD797lnnpUhEXEg&hl=en&ei=ljhUSum6EIy5jAflgomhCQ&sa=X&oi=book_result&ct=result&resnum=6