Problem: Control Enclosure Not Detected; Problem: Mirrored Volume Copies No Longer Identical; Problem: Command File Not Processed From Usb Flash Drive - IBM Storwize V7000 Troubleshooting And Maintenance Manual

v Verify that the SAS cabling to the expansion enclosure is correctly installed. To

Problem: Control enclosure not detected

If a control enclosure is not detected by the system, this procedure may help you
resolve the problem.
When installing a new control enclosure, follow the management GUI Add Control
and Expansion Enclosures wizard, which is available from the Monitoring >
System Details menu. After selecting the control enclosure from the navigation
tree, click the Actions menu, and then select Add Enclosures > Control and
Expansions.
If the control enclosure is not detected, check the following items:
v The enclosure is powered on.
v The enclosure is not part of another system.
v At least one node is in candidate state.
v The Fibre Channel cables are connected and zoning is set up according to the
v The existing system and the nodes in the enclosure that are not detected have

Problem: Mirrored volume copies no longer identical

The management GUI provides options to either check copies that are identical or
to check that the copies are identical and to process any differences that are found.
To confirm that the two copies of a mirrored volume are still identical, choose the
volume view that works best for you. Select one of the volume copies in the
volume that you want to check. From the Actions menu, select the Validate
Volume Copies option.
You have the following choices:
v Validate that the volume copies are identical.
v Validate that the volume copies are identical, mark, and repair any differences
If you want to resolve any differences, you have the following options:
v Consider that one volume is correct and make the other volume copy match the
v Do not assume that either volume copy is correct. If a difference is found, the

Problem: Command file not processed from USB flash drive

This information assists you in determining why the command file is not being
processed, when using a USB flash drive.
50
Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide
review the requirements, see "Problem: SAS cabling not valid" on page 49.
zoning rules defined in the SAN configuration and zoning rules summary topic.
There must be a zone that includes all ports from all node canisters.
Storwize V7000 6.2 or later installed.
that are found.
other copy if any differences are found. The primary volume copy is the copy
that is considered correct.
sector is marked. A media error is returned if the volume is read by a host
application.