6 IBM System p5 505 and 505Q Technical Overview and Introduction
1.4.4 USB diskette drive
The externally attached USB diskette drive provides storage capacity up to 1.44 MB
(FC 2591) on high-density (2HD) floppy disks and 720 KB on a double density floppy disk. It
includes a 350 mm (13.7 in.) cable with standard USB connector. This super slim-line and
lightweight USB V2-attached diskette drive takes its power requirements from the USB port.
The drive can be attached to the integrated USB ports, or to a USB adapter (FC 2738). A
maximum of one USB diskette drive is supported per integrated controller/adapter. The same
controller can share a USB mouse and keyboard.
1.4.5 Hardware Management Console models
A p5-505 and p5-505Q server can be either HMC-managed or non-HMC-managed. In
HMC-managed mode, an HMC is required as a dedicated workstation that allows you to
configure and manage partitions. The HMC provides a set of functions to manage the system
LPARs, dynamic LPAR operations, virtual features, Capacity on Demand, inventory and
microcode management, and remote power control functions. These functions also include
the handling of the partition profiles that define the processor, memory, and I/O resources
that are allocated to an individual partition.
See 2.12, “Hardware Management Console” on page 47 for detailed information about the
HMC.
Table 1-6 lists the HMC options for POWER5+ processor-based systems that are available at
the time of writing. Existing HMC models can be also used.
Table 1-6 Supported HMC options
Systems require Ethernet connectivity between the HMC and one of the Ethernet ports of the
service processor. Ensure that sufficient HMC Ethernet ports are available to enable public
and private networks if you need both. The 7310 Model C05 is a deskside model, which has
one native 10/100/1000 Ethernet port. They can be extended with two additional two-port
10/100/1000 Gb adapters. The 7310 Model CR3 is a 1U, 19-inch rack mountable drawer that
has two native Ethernet ports and can be extended with one additional two-port 10/100/1000
Gb adapter.
When an HMC is connected to the server, the integrated system ports are disabled. If you
need serial connections, for example, non-Ethernet HACMP heartbeat, you must provide an
Async adapter (FC 5723 or FC 2943).
Note: Non-HMC-managed modes:
Are full system partition mode (only one partition with all system resources).
Use the Integrated Virtualization Manager (see 2.11.5, “Integrated Virtualization
Manager” on page 44).
Type-model Description
7310-C05 IBM 7310 Model C05 Deskside Hardware Management Console
7310-CR3 IBM 7310 Model CR3 Rack-Mount Hardware Management Console
Note: It is not possible to connect POWER4™ systems with POWER5, and POWER5+
processor-based systems simultaneously to the same HMC, but it is possible to connect
POWER5 and POWER5+ processor-based systems together to the same HMC.