IBM MTM 2145-12F, Hardware Installation Manual

Page: 149 / 214

Important: You can remove a drive assembly without powering off the expansion
enclosure. However, to maintain operating temperature, perform the following
tasks.
v Do not remove a faulty drive assembly until its replacement is ready to be
installed.
v Do not keep the cover off an operational enclosure for more than 15 minutes.
The reduction in airflow through the enclosure might cause the enclosure or its
components to shut down to protect from overheating.
About this task
The 2145-92F expansion enclosure supports 92 drives. Figure 107 shows an
example of a drive assembly.
▌1▐
Disk drive
▌2▐
Online indicator
▌3▐
Fault indicator
▌4▐
Release latch
▌5▐
Drive latch toes
▌6▐
Drive carrier
Procedure
1. Read all available safety information.
2. Use the slide rails to pull the enclosure out from the rack, as described in
“Removing an expansion enclosure from a rack: 2145-92F” on page 104.
3.
Remove the top cover, as described in “Removing the top cover: 2145-92F” on
page 56.
4. Locate the slot that contains the drive assembly that you want to remove.
Note: When a drive is faulty, the amber fault indicator is lit (
▌3▐
in Figure 107).
Do not replace a drive unless the drive fault indicator is on or you are
instructed to do so by a fix procedure. When lit, the green indicator shows that
activity is occurring on the drive.
A label on the enclosure cover (Figure 108 on page 116) shows the location of
the drive slots. The drive slots are numbered 1-14 from left to right and A-G
from the back to the front of the enclosure.
1
2
3
6
svc01056
4
5
Figure 107. Drive assembly
Chapter 4. Installing an optional 5U SAS expansion enclosure
115