epsilon:/var/www/apache2-default# hdparm -i /dev/sda

/dev/sda:
 HDIO_GET_IDENTITY failed: Invalid argument
epsilon:/var/www/apache2-default# mount
/dev/sda1 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/hda1 on /svr/hda1 type ext3 (rw)
epsilon:/var/www/apache2-default# hdparm -i /dev/sda1

/dev/sda1:
 HDIO_GET_IDENTITY failed: Invalid argument
epsilon:/var/www/apache2-default# man hdparm
Reformatting hdparm(8), please wait...
epsilon:/var/www/apache2-default# hdparm -i /dev/hda

/dev/hda:

 Model=ST3400633A, FwRev=3.AND, SerialNo=4NF0VEVJ
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: device does not report version:

 * signifies the current active mode

epsilon:/var/www/apache2-default# ls -R /proc/scsi/
/proc/scsi/:
device_info  dpt_i2o  scsi  sg

/proc/scsi/dpt_i2o:
0

/proc/scsi/sg:
allow_dio  debug  def_reserved_size  device_hdr  device_strs  devices  version
epsilon:/var/www/apache2-default# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ADAPTEC  Model: RAID-0           Rev: 380E
  Type:   Direct-Access                    ANSI SCSI revision: 02
epsilon:/var/www/apache2-default#