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Hitachi Proprietary
Rev.1.1
INST(RM)10-01-10
10. Removing Controller Chassis
NOTICE: • The removing procedure of Controller Chassis does not include the removal of
Channel Board (CHB)/Disk Board (DKB).
• Perform the removal of CHB/DKB before the removing procedure of Controller
Chassis (see
• If you perform any of the following operations during the removal of Controller
Chassis, a serious error such as system down and data loss might be caused.
Never do the following:
10.1 Estimated Work Time
To estimate the total time required for removing Controller Chassis, sum up relevant items in the table below.
Table 10-1 Estimated Working Hours for Removing Controller Chassis
Process.
Micro-program processing
time
Cable removal time
Component removal time
Chassis removal time
"5. Removing Channel Boards"/"6. Removing Disk Board
- Removing a CTL
- Changing X-path cable connections
- Turing off PDU breakers
When removing two DKCs When removing four DKCs
10 min
22 min
76 min
12 min
Estimated work time
15 min
44 min
152 min
24 min
DKC910I
Copyright © 2019, 2021, Hitachi, Ltd.
(DKB)").
Remarks
The work time depends on
I/O load. When I/O load is
very high, it might take up
to about 4 hours.
Removal of power cables
and LAN cables
Removal of CTLs and HIEs
from Controller Chassis, and
removal of DIMMs, CFMs,
BKNFs, and batteries from
CTLs
[INST(RM)10-01-10]
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