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请SUN专家支招：给V480扩展存储
现有一台SUN V480的机器， 4CPU 8G RAM，带2个73G的硬盘（只有2个本地硬盘槽），因为应用需要，想给它扩展网络存储，请大家给个参考意见。
要求：扩展空间300-500G，要求维护成本简单，价格较少。
疑问：1，480有内置的SCSI接口吗，从外面好象看不到有SCSI接口。
2，480好象有个FC-AL接口，看手册兼容SCSI，好象可以接磁盘柜一类的设备。
3，已经配了2个光纤HBA卡，本来想连SAN的，暂时空间不够了。
请各位SUN 专家指点，谢谢。
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About the FC-AL Backplane
All Sun Fire V480 servers include a single FC-AL backplane with connections for
two internal hard disks, both of which are hot-pluggable.
The FC-AL backplane accepts two, low-profile (1.0-inch, 2.54-cm), dual-ported
FC-AL disk drives. Each disk drive is connected to the backplane via a standard
40-pin single connector attachment (SCA) interface. Incorporating all power and
signal connections into a single, blind-mating connector, SCA technology makes it
easy to add or remove disk drives from the system. Disks using SCA connectors
provide higher availability and better serviceability than disks using other types of
connectors.
The FC-AL backplane provides dual-loop access to both internal disk drives.
Dual-loop configurations enable each disk drive to be accessed through two separate
and distinct data paths. This capability provides:
About the FC-AL Host Adapters
The Sun Fire V480 server uses an intelligent Fibre Channel processor as its on-board
FC-AL controller. Integrated into the system centerplane, the processor resides on
PCI Bus C and supports a 64-bit, 66-MHz PCI interface. The on-board FC-AL
controller controls FC-AL operations on Loop A.
To take advantage of the dual-loop capability of the FC-AL backplane, an optional
PCI FC-AL host adapter card and optional cable are required to control the second
loop (Loop B). For this purpose, Sun offers the Sun StorEdge PCI Dual Fibre Channel
Host Adapter card. See the Sun Fire V480 Server Parts Installation and Removal Guide,
which is included on the Sun Fire V480 Documentation CD, for installation
instructions.
看480的手册，好象480带了一个FC-AL，要用它还得再买个FC-AL卡和线，是不是？