RadiSys ATCA-5400 RTM, Reference

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1
Product Overview
10
RTM overview
The ATCA-5400 RTM is an optional compatible rear transition module for the ATCA-4500 CPM
front module that supplies the CPM with additional data storage and connectivity options.
The RTM has an on-board SAS/SATA controller and can host an optional SAS hard disk drive
(HDD). The controller can access an HDD AMC if one is installed on the CPM. The RTM also
includes two rear panel SAS ports to allow cable connections to additional hard disk drives, such
as hard disk drives accessible from another RTM. The SAS/SATA controller supports RAID
(redundant array of inexpensive disks), including RAID 0 (striping) and RAID 1 (mirroring)
configurations.
For instructions on installing a hard disk drive, see Installing a hard disk drive on page 12 . For
instructions on configuring a RAID, see Chapter 3, Configuring a Redundant Disk Array, on
page 15 .
The RTM has two 1-gigabit Ethernet SFP sockets on its face plate that can facilitate external
connections through the RTM to the CPM. These rear Ethernet ports are usable when the
Ethernet controller on the CPM is configured to route the connections to the RTM. On the
ATCA-4500 CPM, a BIOS menu setting determines whether these connections are routed to the
CPM front panel or to the RTM. For instructions on installing SFP transceivers in the SFP sockets,
see
Installing SFPs on page 11 .
The RS-232 serial port on the RTM provides a management interface to the CPM. The RTM also
includes a USB 2.0 port that connects to the CPM.
A module management controller (MMC) provides intelligent management of the RTM
hardware, including its managed sensors. The MMC responds to reset signals from the CPM as
well as IPMI commands.