Shutting Down The Storage Block; Storage Block Parts Replacement Procedures; Replacing Storage Network Cables Or Transceivers; Remove A Storage Controller - Lenovo ThinkAgile CP Part Replacement And Component Maintenance Procedures

To trigger a manual storage HA event, follow these steps:
Step 1. Connect to the active storage controller via SSH. On the Hardware page, the active storage
controller is labeled.
Step 2. In the active storage controller OS, run the following command to stop the Storage Controller
Services:
> > s s u u d d o o s s y y s s t t e e m m c c t t l l s s t t o o p p t t a a c c p p - - s s t t o o r r a a g g e e - - c c o o n n t t r r o o l l l l e e r r
The passive storage controller becomes active in the Cloud Controller.

Shutting down the storage block

Procedure to power off the ThinkAgile CP storage block.
Procedure performed by: Solution administrator
Execution: Web Portal only
You shut down a storage block (shutting down all storage controllers) directly in the Cloud Controller.
In the Hardware page, in the storage block Action menu
At that point, if there are VMs running and using disks exported by the storage block, the system requests
that the VMs be shut down. This shutdown can be done in the dialog box.
For best results, VM owners should perform a proper shutdown within the VMs based on their application-
specific shutdown procedures.

Storage block parts replacement procedures

Refer to Chapter 2 "Roles and responsibilities" on page 5 to determine who can perform these procedures.

Replacing storage network cables or transceivers

This section describes how to replace storage network cables or transceivers.
Procedure performed by: Customer or field service
Replacing a cable or transceiver that connects the storage controller to an interconnect can be done live,
without any specific preparation steps.
When a cable or transceiver is disconnected, the storage controller associated with the port will decrease in
bandwidth by up to 25%. Disconnecting all four cables results in zero bandwidth to the controller, which may
trigger failover to the other controller. If there is only one interconnect in the chassis, disconnecting all cables
results in taking the storage offline as there is no failover option.

Remove a storage controller

This procedure describes how to remove a storage controller from a ThinkAgile CP configuration.
Procedure performed by: Solution administrator, ThinkAgile Advantage Support
Step 1. Obtain the serial number of the storage controller to be removed. You can find the serial number on
the Hardware page of the Web Portal.
, select Power off....
.
Chapter 6 Storage block maintenance procedures
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