IBM H Series Installation And Service Manual page 272

a. Rotate the carrier latch to the open position.
SCSI Disk Drive
SSA Disk Drive
Check
Ready
Power
b. Position the carrier horizontally, with the connector facing into the bay.
c. Align the side of the carrier with the raised guides on the left of the bay.
d. Gently slide the carrier into the bay to keep from damaging the drive. Slide
the carrier to the rear of the bay until it is seated into the connector.
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RS/6000 Enterprise Server Model H Series Installation and Service Guide
Locked Position