System Usm Firmware; Fru Replacement Time Limits; Replacing A Psu Module; Fru Time Limits - Seagate Exos E 4U106 Hardware Installation And Maintenance Manual

• Use a portable field service kit with a folding static-dissipating work mat.
If you do not have any of the suggested equipment for proper grounding, have an authorized technician install the part.
For more information about static electricity or assistance with product installation, see
https://seagate.com/support-home.

System USM Firmware

When replacing an FRU, it is possible that the firmware loaded onto the new component does not match the USM
release level of the other components within the system. To ensure optimal system operation, it is important that all
components within the system are running revisions that are from the same USM release. After replacing any
system FRUs, ensure that the system USM firmware and configuration (including SAS zoning) is appropriate for
the solution. See

FRU replacement time limits

Refer the subsequent table for information on time limits for each FRU.
Table 12 FRU Time limits
FRU
Main Fan
IOM
Controller Fan
PSU
Main Bay cover
Controller Bay cover

Replacing a PSU module

This section provides procedures for replacing a failed power supply unit (PSU) module. Illustrations in PSU
replacement procedures show rear panel views of the enclosure, with the PSU properly oriented for insertion into
the rear panel of the enclosure.
A single PSU is sufficient to maintain operation of the enclosure. You need not halt operations and completely
power-off the enclosure when replacing only one PSU; however, a complete orderly shutdown is required if
replacing both units simultaneously.
CAUTION: Do not remove the cover from the PSU due to danger from electric shock inside. Return the PSU to
your supplier for repair.
See CAUTION bullets regarding electrostatic discharge and anti-static protection on
TIP: The illustrations show PSU module replacement as you face the enclosure rear panel. See also
(page 19) and
74 Module removal and replacement
"Updating the firmware" (page 64)
Time limit in minutes
2
8
8
6
8
8
Figure 7 (page 21).
for details.
page 73.
Figure 4