IBM 6000 - Drive Slots; Power Supply Units (Psus); Power Supply Units

Drive slots
A drive slot represents the location in an enclosure into which a drive can be inserted.
Each drive slot must contain either a drive or an empty carrier. The empty carriers do not have drive
indicators. The numbering scheme for the drive slots is indicated on the enclosure.
The following gure displays an enclosure that has 48 drives, with 2.5-inch drive slots. In each canister,
the drive slots are arranged in one row.
IBM Storage Scale System 6000 supports 24 and 48 drives congurations. All drives must be identical
in an IBM Storage Scale System 6000 enclosure. In a 24-drives conguration, drives must be plugged
only into slots with even numbers (2-24) in the top; and only into slots with odd numbers (25-47) in the
bottom.
Figure 8. Front view of anIBM Storage Scale System 6000 with a 48-drive conguration
Power supply units (PSUs)
Power supply units are subcomponents of the server. A PSU takes electrical power from the power
distribution units (PDUs) of the rack and distributes the power to other components in the server.
Note: The base storage system may be shipped without the power supply unit. To bare the UL mark
(cULus) on a nonfunctioning enclosure, users must install the original or identical PSU model, FSM029,
as evaluated in the end use (storage equipment Regulatory Model ID: LTH-4U48 or Alternate Supplement
MT-Model: 5149-F48). Breaching this requirement voids system safety certication.
For redundancy, four power modules are installed in the enclosure, two per canister.
Figure 9. Power supply units
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IBM Storage Scale System 6000: Hardware Planning and Installation Guide