QuickSpecs

Availability Power redundancy: Redundant AC feeds into power enclosures, redundant DC feeds from power enclosure to
server blade enclosures, N + N redundant power supplies
Two hot-plug SCSI hard drive bays and integrated RAID (Smart Array 5i) on every server blade (Battery-backed
write cache is optional.)
Redundant ROM on each server blade
ECC Memory
Network adapter teaming (network fault tolerance, transmit load balancing, switch-assisted load balancing)
Interconnects switch availability
Hot-plug and hot- remove with configuration retention and no need to cable/re-cable
Two network connections per server blade bay (four NICs total) routed to two redundant interconnect
switches
Redundant inter-switch communication and two sets of redundant Ethernet uplink ports per each interconnect
switch
Redundant front panel Ethernet ports per each interconnect switch for diagnostics, management, and
additional uplinks
Redundant serial ports
Compatibility with PVST+ (GbE2 switch) and 802.1D Spanning tree protocol support for loop-free path
redundancy
Static IEEE 802.3ad (EtherChannel compatible) trunking with automatic port load balancing and failover
Redundant switch configuration files and operating system firmware images in memory (GbE2 switch)
Redundant fans per each interconnect switch
Redundant 1+1 power to each interconnect switch
Support for ProLiant network adapter teaming
Redundant configurable community strings and SNMP trap manager hosts
Redundant configurable syslog servers, DNS servers, and default gateways (GbE2 switch)
Security Power-on password
Administrator's password
Integrated Lights-Out has 12 customizable user accounts and SSL encryption
Integrated Lights-Out can be disabled via a Global Setting
Interconnect switch multilevel user names and passwords, management interface time out period setting, SSH*, SCP
secure copy protocol*, port-based IEEE 802.1Q tagged VLANs, RADIUS user authentication and authorization*, and
IP address restriction
* GbE2 Interconnect Switch only.
Minimum Rack
Requirements
Mounts in Compaq/HP, Telco racks and Third Party racks that meet the following criteria:
Compatible with 19-inch Standard EIA rail sets
EIA rail-to-rail depth is 29 - 30"
Cabinet depth must be at least 36-inch deep overall (Additional min. 3.5-inch clearance from rear RETMA rail
to rear door, inclusive in the 36-inch overall depth)
Ample room for top and bottom cable egress (approximately 8 square inches for full rack configuration with
patch panel)
Must be capable of supporting 1600 lb (for full rack configuration)
Perforated front and rear doors to accommodate front-to-back cooling
Must have 65% open perforation on server blade enclosure doors to support airflow requirements
Optimized for use with the HP 10000 Series racks
NOTE: If using HP 7000 Series rack, Rack Extension Kit and High Air Flow Rack Door options are required.
QuickSpecs
HP ProLiant BL20p p-Class Server Blade
Standard Features
DA - 11411 Worldwide — Version 24 — September 24, 2004 Page 14