IBM Storwize V7000 Unified Problem Determination Manual page 209

the Storwize V7000 was initialized or any time that you insert the USB flash drive
into the control enclosure. You should also be able to tell which node canister is
currently the main configuration node.
If the control enclosure service IP addresses cannot be reached using ssh, then it
can be set using the InitTool and USB flash drive. Refer to "Procedure: Changing
the service IP address of a node canister" on page 206.
Changing the system IP of the control enclosure using the service CLI:
Login to the service IP of the main configuration node canister using ssh as
superuser. The default password is passw0rd. Issue the chsystemip CLI command
to set new IP values. Here is an example:
>ssh superuser@<service-ip>
$ chsystemip -clusterip 9.20.136.5 -gw 9.20.136.1 -mask 255.255.255.0 -port 1
You may receive the following error:
CMMVC5732E The command cannot be initiated because it was not run on
the configuration node.
This may indicate that the node you are currently logged in to is not the
configuration node for the system. Log out and login using ssh to the other node
canister service IP. Then issue the chsystemip command again.
If your system includes file modules that have not been initialized yet (for
example, the blue identify indicators are blinking) then start the USB initialization
process again but this time provide the new Storwize V7000 system IP. This time
there is no need to insert the USB flash drive into the control enclosure because it
will ignore the mknascluster command in satask.txt; the block cluster is already
made but the USB flash drive should be successfully initialized.
If your system includes USB flash drive that have already been successfully
initialized, then after the control enclosure system IP address has been changed, it
is necessary to ensure that the USB flash drive record of the address matches.
Updating file module's record of the control enclosure system IP:
To find the USB flash drive current record of the control enclosure system IP
address, use the Storwize V7000 Unified management CLI to issue the
lsstoragesystem command. Here is an example:
>ssh admin@<management_IP>
[kd01ghf.ibm]$ lsstoragesystem
name primaryIP secondaryIP id
StorwizeV7000 9.11.137.130 9.11.137.130 00000200A2601508
EFSSG1000I The command completed successfully.
If the primary and secondary IP address shown by the lsstoragesystem CLI do
not match the system IP addresses then it is necessary to update the record. The
chstoragesystem command changes the file module record of the control enclosure
system IP. Here is an example:
>[kd01ghf.ibm]$ chstoragesystem --ip1 9.71.18.136 --ip2 9.71.18.136
EFSSG1000I The command completed successfully.
Verify that communication from the file module to the control enclosure is now
possible by running the lssystemip command on the Storwize V7000 Unified
management CLI:
189
Chapter 5. Control enclosure