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34 BladeSymphony 1000 Architecture White Paper www.hitachi.com
SCSI Hard Drive Modules
The BladeSymphony 1000 supports two types of storage modules containing 73 or 146 GB 15K RPM
Ultra320 SCSI drives in the type B chassis only. The 3x HDD Module can have up to three drives
installed. The 6x HDD module utilizes two server slots and can house up to six drives. Both HDD
Modules are illustrated in Figure 24. Four out of eight server slots of a server chassis can be used to
install storage modules, for a total of either four 3x modules or two 6x modules. The storage modules
are mountable only on server slots #4 to #7 in Chassis B.
Disk drives installed in HDD modules can be hot-swapped in a RAID configuration with the RAID
controller installed on the PCI card. The HDD Modules support RAID 1, 5, and 0+1 and spare disk.
Figure 24. HDD Modules
Table 9: Embedded Gigabit Ethernet Switch features
Item Description
Port Backplane side: 1 Gb/sec. x 8
External: 10 BASE-T / 100 BASE-T / 1000 BASE-t (auto connection)
Auto learning of MAC address (16,384 entries)
Switch Layer 2 switch
Bridge function Spanning tree protocol (IEEE 802.1d compliant)
Network function Link aggregation (IEEE 802.3ad)
Trunking (up to 4 ports, 24 groups)
Jumbo frame (packet size: 9216 bytes)
VLAN Port VLAN
TagVLAN (IEEE 802.1q)
Maximum number of definitions: 4096
Management function SNMP v2c agent
MIB II (RFC1213 compliant)
Interface extending MIB (FRC1573, RFC2233 compliant)