Removing And Replacing File Module Components - IBM Storwize V7000 Unified Series Problem Determination Manual

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2. Issue the suspendnode command to remove the file module from the system so

that you can work on it.

To remove the mgmt001st001 file module from the system, for example, issue

the following command:

# suspendnode mgmt001st001

3. Wait for the Storwize V7000 Unified system to stop the file module at the

clustered trivial database (CTDB) level. The command does not unmount any

mounted file systems.

A stopped file module does not participate in the cluster and does not host any

records for the clustered trivial database. The IP address of an file module is

taken over by another file module and no services are hosted.

You can log on as root and issue the onnode all service ctdb status

command to view the state of the file module in comparison to another file

module in the system. Or you can issue the lsnode -r command as a non-root

user to view the state of the file module.

The results from running the lsnode -r command are similar to the following

example:

# lsnode -r

Hostname

mgmt001st001

mgmt002st001

Product Version Connection status GPFS status CTDB status

1.3.0.2-02

4. Pull the file module out from the rack on its rails.

5. Locate and use the service ladder, if necessary, to perform the maintenance

action on the file module when it is fully extended from the rack.

6. Locate and perform the correct removal and replacement procedure, as

described in "Removing and replacing parts" on page 81.

Attention: You can replace only one of the disk drives in the file module. If

you must replace both disk drives, contact your next level of support.

7. After replacing the failing part and replacing the file module cover, push the

file module back in the rack.

8. Use the resumenode command to add the file module back into the system so

that it can begin to host services.

To add the mgmt001st001 file module back into the system, for example, issue

the following command:

# resumenode mgmt001st001

9. After the Storwize V7000 Unified system reintegrates the file module back into

the cluster, the ctdb status command shows that the service is active on the

file module.

You can now perform maintenance on another file module that requires it. After

completing all maintenance, perform the system checkout procedure and return the

system to the customer.