Which two statements are true about an IOM 12 module? (Choose two.)

The IOM12 is a 12 Gb/s SAS I/O module used in various NetApp disk shelves, such as the DS224C and DS460C. Each IOM12 module is equipped with four mini-SAS HD (QSFP) ports for data path connectivity to the storage controllers and for daisy-chaining additional shelves. In addition to the data ports, each IOM12 module includes a dedicated 10/100 Ethernet (RJ-45) port for the Alternate Control Path (ACP). The ACP provides an out-of-band management network, allowing the storage controller to monitor and manage the disk shelf environment independently of the primary SAS data path.

A. It has two SAS ports.

This is incorrect. The IOM12 module has four 12 Gb/s mini-SAS HD ports. Older modules, like the IOM3, had two SAS ports.

C. It does not have an Ethernet port for alternate control path (ACP).

This is incorrect. The IOM12 module is explicitly designed with a dedicated RJ-45 Ethernet port to support the ACP for out-of-band management.

1. NetApp DS460C Disk Shelf Installation and Service Guide, Page 11, "IOM12 modules".

The document states, "Each IOM12 module has four mini-SAS HD ports..." and "Each IOM12 module has one RJ-45 port for the Alternate Control Path (ACP) connection." A diagram on the same page visually confirms the four SAS ports and one ACP port.

2. NetApp DS224C and DS212C Disk Shelves Installation and Service Guide, Page 12, "IOM12 module".

This guide specifies the features of the IOM12 module: "Four 12Gb/sec SAS ports" and "One 10/100 Ethernet 'wrench' port for ACP management." The accompanying illustration clearly labels these ports.

3. NetApp Hardware Universe (hwu.netapp.com), IOM12 Module Specifications.

Searching for disk shelves like DS224C or DS460C and viewing the IOM specifications confirms that the IOM12 module (part number X-5713-00-8) contains four 12Gb SAS ports and one ACP port.