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Step 5.
Disconnect the cabling from the IOM12 module that you are removing.Make note of the IOM12
module ports each cable is connected to.
Step 6.
Press the orange latch on the IOM12 module cam handle until it releases, and then open the cam
handle fully to release the IOM12 module from the mid plane.
Step 7.
Use the cam handle to slide the IOM12 module out of the disk shelf.If you have a DM240S or
DM120S disk shelf, as you remove the power supply, a plastic flap swings into place to block the
empty bay, helping to maintain air flow and cooling.
Note: When handling an IOM12 module, always use two hands to support its weight.
Step 8.
Wait at least 70 seconds after removing the IOM12 module before you install the new IOM12
module.Waiting at least 70 seconds enables the driver to register the shelf ID correctly.
Step 9.
Using two hands, with the cam handle of the new IOM12 module in the open position, support and
align the edges of the new IOM12 module with the opening in the disk shelf, and then firmly push
the new IOM12 module until it meets the mid plane.
Attention: Do not use excessive force when sliding the IOM12 module into the disk shelf; you
might damage the connectors.
Step 10. Close the cam handle so that the latch clicks into the locked position and the IOM12 module is fully
seated.
Step 11. Reconnect the cabling.
The SAS cable connectors are keyed; when oriented correctly into an IOM port, the connector
clicks into place and the IOM port LNK LED illuminates green. You insert a SAS cable connector
into an IOM port with the pull tab oriented down (on the underside of the connector).
Step 12. Perform one of the following actions based on the type of configuration you have:
34
Service Guide for DM120S, DM240S, and DM600S
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