Silicon Graphics DSS-1 Hardware Description page 12

Product Overview DSS-1 and DSS-2 Hardware Description
10
You must release the latch before you can pull the drive from the enclosure.
During operation, the illuminated activity LED indicates that the drive is in the
process of reading or writing data.
NOTE:
You will lose data if you power down or unplug the drive while the
activity LED is illuminated.
As shown in Figure 7, the drive has a DC power connector, a drive ID connector,
and a SCSI I/O connector on the rear panel. Cables within the disk drive canister
plug into these connectors and carry data, control, and power between the drive
and a 96-pin connector on the rear panel of the drive canister. This arrangement
enables automatic signal, power, and control connections during insertion and
removal of the drive (in its canister) from the front of the enclosure. The "Cabling
Guidelines" section, which begins on page 15, lists all connector pinouts.
Figure
7.
DSS-1IDSS-2 Disk Drive (Removed from Canister)
SCSI 110
Connector
Drive ID
Connector
DC Power
Connector
NOTE:
The lines pOint to pin number one
on each connector.
J01
J4
Air drawn in through the enclosure front panel cools the drive. Power supply
fans and enclosure fans create this air movement.
Silicon Graphics Proprietary
HMM-199-A