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replacement chassis. A fully functional replacement chassis requires the successful removal and installation
of the following components.
Your service technician will tell you whether you should remove these components prior to the chassis
replacement and install them in the replacement chassis once it is provided to you. Do not perform these
steps unless directed to do so by your service technician.
• Enclosure bezel (covers enclosure front panel)
• All disk drive modules
• Two AC power supply units approved for use with your specific enclosure.
• One or two ESMs (of the same model type)
Before you begin
CAUTION: Do not remove the enclosure until you have received the replacement enclosure.
1. Schedule down time that will allow for shutdown; sixty minutes of replacement work; and restart.
2. Verify the existence of a known/good backup of the system.
3. Record system settings for future use and label all cables.
4. Prepare a suitable static-protected work environment to accommodate chassis replacement.
Verifying component failure
The Storage Enclosure CRU includes the enclosure's metal housing and the midplane that connects ESMs,
disk drive modules, and power supply modules. This CRU replaces an enclosure that has been damaged,
or whose midplane has been damaged.
Preparing to remove a damaged Storage Enclosure chassis
IMPORTANT: A Storage Enclosure chassis is a Field Replaceable Unit (FRU) rather than a CRU. FRUs must
be installed only by trained service technicians. For additional information, contact support.lenovo.com. Do
not perform the steps below unless directed to do so by your service technician.
Because you are removing and replacing an entire Storage Enclosure chassis, the hot-swap capability that
applies to replacing individual CRUs in an operational Storage Enclosure apply to this procedure.
1. Stop all I/O from hosts to the system. See
2. Power off the system. See
your particular power supply model.
Table 24 Removing and replacing a Storage Enclosure chassis and its CRUs
To accomplish this sequential process
1. Remove the enclosure bezel to provide access to
front panel components.
2. Remove disk drive modules from the damaged
1
chassis.
3. Remove power and data cables.
4. Remove the damaged Storage Enclosure chassis
from the rack.
Stopping I/O
Power supply units
on page 50, and refer to the power cycling procedures for
See the following procedures
Removing a damaged Storage Enclosure chassis from the
rack
D1012/D1024 Hardware Installation and Maintenance Guide
on page 43.
a.
Figure 20
on page 37 (2U24 chassis).
b.
Figure 24
on page 39 (2U12 chassis).
a.
Before you begin
on page 46.
b.
Removing a disk drive module
c.
Removing a damaged Storage Enclosure chassis
from the rack
on page 54 (step 1).
on page 54.
on page 47.
53
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