Seagate ST400FM0012 ユーザーズマニュアル

P

ULSAR

.2 SAS P

RODUCT 

M

ANUAL

, R

EV

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  40

  

Pulsar.2 drive installation is a plug-and-play process. There are no jumpers on the drive.

SAS drives are designed to be used in a host system that provides a SAS-compatible backplane with bays designed to accommodate the 
drive. In such systems, the host system typically provides a carrier or tray into which the drive must be mounted. Mount the drive to the 
carrier or tray provided by the host system using four M3 x 0.5 metric screws. When tightening the screws, use a maximum torque of 4.5 
in-lb +/- 0.45 in-lb. Do not over-tighten or force the screws. The drive can be mounted in any orientation.

SAS drives are designed to be attached to the host system without I/O or power cables. If the intent is to use the drive in a 
non-backplane host system, connecting the drive using high-quality cables is acceptable as long as the I/O cable length does 
not exceed 10 meters (32.8 feet).

Slide the carrier or tray into the appropriate bay in the host system using the instructions provided by the host system. This connects the 
drive directly to the system’s SAS connector. The SAS connector is normally located on a SAS backpanel. See Section 11.4.1 for 
additional information about these connectors.

Power is supplied through the SAS connector.

The drive is shipped from the factory low-level formatted in 512-byte logical blocks. Reformatting the drive is only required if the application 
requires a different logical block size.

The drive may be mounted in any orientation. All drive performance characterizations, however, have been done with the drive in 
horizontal (level) and vertical (drive on its side) orientations, which are the two preferred mounting orientations.

Cabinet cooling must be designed by the customer so that the temperature of the drive will not exceed temperature conditions specified in 
Section 6.5.1, "Temperature."

The rack, cabinet, or drawer environment for the drive must provide heat removal from the assembly. The system designer should confirm 
that adequate heat removal is provided using the temperature measurement guidelines described in Section 6.5.1.

Forced air flow may be required to keep temperatures at or below the temperatures specified in Section 6.5.1 in which case the drive 
should be oriented, or air flow directed, so that the least amount of air flow resistance is created while providing air flow. Also, the shortest 
possible path between the air inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources 
within the rack, cabinet, or drawer environment.