118 SPARCstation 20 Service Manual • July 1996
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing it on any surface.
3. Determine which drive to remove (
FIGURE 9-1); the system supports up to two
internal hard disk drives.
Note – Remove the top disk drive before removing the bottom disk drive.
Note – The disk drive position determines the assigned SCSI address. When
installed, the bottom disk drive is assigned SCSI address 3 and the top disk drive is
assigned SCSI address 1.
FIGURE 9-1 Location of Hard Disk Drives
Caution – When installing the hard disk drive, do not change the disk drive
position. The system software expects the disk drive to be at a specific SCSI address.
4. Press the plastic latch located beneath the handle at the rear of the drive to release
the handle (
FIGURE 9-2).
Hard disk drive (2 max.) stacked