Continuous Operation During Replacement; Customer-Replaceable Units (Fru); Frus Addressing 4U106-Drive Chassis - Seagate Exos E 4U106 Hardware Installation And Maintenance Manual

IMPORTANT: If the enclosure system is powered up and you remove any module, replace it immediately. If the
system is used with any modules missing for more than a few seconds, the enclosure(s) can overheat, causing
power failure and potential data loss. Such action can invalidate the product warranty.
IMPORTANT: Observe applicable/conventional ESD precautions when handling modules and components, as
described in "ESD precautions" (page
pins, and exposed circuitry.

Continuous operation during replacement

Your hardware or software enclosure management application determines the capability for replacing a failed drive
without the loss of access to any file system on the enclosure. Enclosure access and use during this period is
uninterrupted. If an enclosure is equipped with redundant PSUs, sufficient power is provided to the system while
the faulty module is replaced.
NOTE: Exos E 4U106 enclosures support hot-plug replacement of redundant expansion modules, power
supplies, fan modules, and HS expanders. Hot-add replacement of expansion enclosures is also supported.

Customer-replaceable units (FRU)

FRUs addressing 4U106-drive chassis

Table 11 Exos E 4U106 product components for 4U106-drive chassis
Item Enclosure FRU and related component description
1 Drive (LFF/SFF) module: DDIC (DISC in drive carrier)
a) DDIC 3.5" LFF (drives of differing type/speed and storage capacity: SAS/SATA/SSD)
b) DDIC 2.5"
2 Chassis (sheet metal enclosure) with integrated PCBAs (included with chassis; not available separately)
3 Power supply unit (PSU) module available as AC unit (chassis uses two PSUs of same model type)
4 IOM (EBOD canister) for storage expansion
5 System fan module
6 Controller fan module
7 HS Expander module (PCBA card)
8 Rail kit (variable attachment options)
a) Rackmount kit, shelf, long (1.2 m), HW
b) cable management arm (CMA) and brackets
9 Cable kits [Cable package: standard HD mini-SAS (SFF-8644) to HD mini-SAS (SFF-8644)]
10 AC power cord compatible with AC PSU
1-The Access column lists the enclosure panel from which the FRU is observed and accessed. It does not apply to other components.
2-See "Enclosure chassis" (page 24)
3-See "Rackmount rail kit" (page 43)
73). Avoid contact with midplane components, module connectors, leads,
with adapter (drives of differing type/speed and storage capacity: SAS/SATA/SSD)
SFF
for a description of the chassis FRU.
and "Routing cables using the CMA" (page 59) for descriptions of the rail kit and CMA.
Continuous operation during replacement
Access 1
Top
Note 2
Rear
Rear
Rear
Top
Top
Note 3
N/A
N/A
71