NetApp DS460C Service Manual page 43

• The IOM12 modules are arranged side-by-side as in a DS224C or DS212C disk shelf; if you
have a DS460C, the IOM12 modules are arranged one above the other.
• The stack in each example is cabled with standard shelf-to-shelf cabling, which is used in
stacks cabled with multipath HA or multipath connectivity.
You can infer the recabling if your stack is cabled with quad-path HA or quad-path
connectivity, which uses double-wide shelf-to-shelf cabling.
• The cabling examples demonstrate recabling one of the paths: path A (IOM A).
You repeat the recabling for path B (IOM B).
• The cabling example for removing a disk shelf from the end of a stack demonstrates removing
the logical last disk shelf in a stack that is cabled with multipath HA connectivity.
You can infer the recabling if you are removing the logical first disk shelf in a stack or if your
stack has multipath connectivity.
6. Verify that you bypassed the disk shelves you are removing and reestablished the path A (IOM A)
stack connections correctly:
storage disk show -port
For HA pair configurations, you run this command from the clustershell of either controller. It
might take up to a minute for the system to complete discovery.
Example
The first two lines of output show disk drives with connectivity through both path A and path B.
The last two lines of output show disk drives with connectivity through a single-path, path B.
Hot-removing disk shelves with IOM12 modules | 43