Huawei OceanStor V5 Series Parts Replacement page 196

OceanStor V5 Series
Parts Replacement
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Precautions
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Tools and Materials
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Issue 15 (2019-12-30)
After a user manually replaces the public/private key pair of ibc_os_hs, the
public/private key pairs of all other functional controllers are initialized before
controller replacement.
To check whether ibc_os_hs public/private key pairs are the default ones, see the check
message of the FRU tool. To initialize the public/private key pairs, log in to the serial port of
the controller enclosure using user account _super_admin (the default password is
Admin@revive) and run the initibckey command.
If the storage system of the current version allows SSH port IDs to be
configured, the SSH port ID of each controller in the storage system is the
default value 22.
Run show system server_port server_name=SSH to check whether the SSH port ID is 22.
If the port ID is not 22, run change system server_port server_name=SSH port_num=22
to change it to 22.
If the controller to be replaced is in minisystem state (after you log in to the
CLI of the controller, Storage: minisystem> is displayed), run the
showbootmode command to check whether the boot mode of the storage
system is normal.
– If the command output is boot -> boot_osp, the boot mode is normal.
Find the cause of the fault and rectify the fault before replacing the
controller.
– If the command output is boot -> boot_rescue, the boot mode is
abnormal. Run the resumebootmode command to restore the boot
mode to normal before replacing the controller.
Remove and insert a controller with even force. Excessive force may damage
the appearance or connectors of the controller.
Remove only one controller at a time to ensure service continuity.
A controller must be replaced within three minutes. Otherwise, the system
heat dissipation is compromised.
If a single controller fails, use the SmartKit to replace it when the other
controller is working properly. If the entire controller enclosure has been
powered off, power on the functioning controller before replacing the faulty
one.
If both controllers of a controller enclosure fail, contact Huawei technical
support engineers for assistance.
If the FRU tool fails to identify a controller fault, skip
Step 11.
ESD wrist strap
ESD bag
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7 Replacing FRUs
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