FUJITSU Primecenter M1 BS2000 - Manual (Page 24)

24
Overview
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Rack system with horizontal ventilation
The PRIMECENTER M1 rack is ventilated from the front to the rear. A fully
configured rack in normal air-conditioned rooms can be operated at
temperatures up to 35°C. The volume of air required to cool the rack modules
is supplied via the integral horizontal ventilation system. The rack conforms to
protection class IP20 (i.e. protection against solid foreign bodies/without any
special protection against water; IP = International Protection). Honeycomb-
shaped holes in the doors (up to 80% holes) enable uniform, passive ventilation.
Hard disk expansion / Extension for tape drives
Fujitsu offers a large portfolio of storage subsystems to expand the hard disk
capacity as well as for data backup.
Automatic console switching
The administration of several servers can be performed as an option via the rack
console by means of console switches. Console switches are offered with 4, 8,
16 and 32 channels. Switching over is carried out by means of hotkeys or the
OSD (on screen display) function. Digital KVM (Keyboard-/Video-/Mouse-)
switches can be used to integrate rack systems in a LAN and administered
worldwide.
UPS systems
The availability of the systems can be increased through the use of optional
UPS (interruptible power supply) modules. These provide the systems with
adequate protection against power outages and fluctuations in the line voltage.
Depending on configuration within the rack, a number of systems can be
protected by a single UPS. APC modules rated at 1,500 VA, 3,000 VA and 5,000
VA, and online UPS rated 3 / 5 KVA and 8 / 10 / 20 KVA are currently available.
All UPS modules are equipped with an SNMP interface (signal line). All the
parameters and statuses of the installed UPSs can thus be set and monitored
with the server management. A power failure can be automatically reported to
every connected server by means of traps.
Ease of serviceability and maintenance
The rack servers and expansion modules, which are mounted on telescopic or
sliding rails, can be installed in a rack without the need for any tools. If telescopic
rails are used, systems can be withdrawn toward the front. This facilitates
maintenance and upgrade operations by allowing technicians access to all the