Linux command for disk information

You could take a look at the files in /proc/ide/ide0/hda/
If you want info one the first harddisk on the primary IDE channel.

dd will not give you any information like this. dd actually stand for Disk Dump. That is the purpose of this tool.

Many linux systems support smart tools. If you have smart daemon running then you can simply write:

# smartctl -i /dev/hda
smartctl version 5.36 [i686-redhat-linux-gnu] Copyright (C) 2002-6 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model:    QUANTUM FIREBALLlct20 10
Serial Number:    651036618772
Firmware Version: APL.0900
User Capacity:    10,262,568,960 bytes
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:  5
ATA Standard is:  ATA/ATAPI-5 T13 1321D revision 1
Local Time is:    Fri Apr 20 00:00:55 2007 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

What does -i mean? My device is /dev/md0. What -d type do I use, magic jazzjack? Do you know anything about Nagios?

BTW, jazzjack you are fab and janpo helped with this question too. It would be nice if you could share the points.

From man smartctl

-i, --info
              Prints  the  device  model number, serial number, firmware ver-
              sion, and ATA Standard version/revision information.  Says  if
              the  device supports SMART, and if so, whether SMART support is
              currently enabled or disabled.  If the device supports  Logical
              Block Address mode (LBA mode) print current user drive capacity
              in bytes. (If drive is has a user protected area  reserved,  or
              is  "clipped",  this  may be smaller than the potential maximum
              drive capacity.)


(Nice, I did not now this utility. :-)

You're welcome.

Share the points as u like. I just don't know how to do it :-)