HP StorageWorks 4000 Compaq RAID Array 4000 Storage System: Deployment and Con - Page 5

RAID Array 4000, RA4000 Controller, Fibre Channel Storage Hub 12

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Compaq RAID Array 4000 Storage System: Deployment and Configuration 5 Fibre Channel Storage Hub 12 The Compaq Fibre Channel Storage Hub 12 is an intelligent, 12-port hub similar to the Fibre Channel Storage Hub 7. A Fibre Channel Storage Hub 12 is capable of supporting: • Up to 11 RA4000s per hub. • Up to 132 spindles per server slot. • Up to 3.2 TB per server slot. • Interconnect distances up to 500 meters per link using GBIC-SW. • Interconnect distances up to 10 kilometers per link using GBIC-LW. RAID Array 4000 The RAID Array 4000 (RA4000) is an external drive enclosure containing a high-performance RA4000 Controller, hot-pluggable hard disk drives, fan assembly, and power supplies. The RA4000 allows you to simultaneously scale capacity, cache, and processing power. Each RA4000 features optional hot-plug redundant power supplies and fans. This array supports dual controllers, which provide controller failover redundancy. The RA4000 is available in tower or 4U rack form factors and supports eight 1.6-inch or twelve 1-inch hard disk drives for a total of 291.2 GB per enclosure using 36.4 GB drives. The number of RA4000s that can be deployed in an RA4000 Storage System depends on the number and configuration of the Fibre Channel Storage Hubs. The number and configuration of the storage hubs depends on the number of Fibre Channel Host Adapters installed in the server. Note: The Compaq RA4000 is drive tray compatible with Compaq X86 Servers and ProLiant Storage Systems (Wide Ultra SCSI-3 Hot Plug). RA4000 Controller The RA4000 Controller is an intelligent Fibre Channel-to-SCSI array controller integrated into the RA4000. The controller is based on the Compaq Smart Array architecture and has two Wide Ultra SCSI-3 channels. Each channel can transfer data at 40 megabytes per second for a total of 80 megabytes per second possible internal bandwidth. The array controller-to-host interface is Fibre Channel for high-speed connection to the server. The Fibre Channel interface can transfer data to the server at burst rates of 100 megabytes per second. The RA4000 Controller supports RAID levels 0, 0+1, 1, 4, and 5. It also supports multiple logical drives with hot-swap capabilities and online capacity expansion within the array. The controller features sixth-generation Compaq RAID technology and components and a total of 64 megabytes of usable cache (16 megabytes read and 48 megabytes user-selectable read/write). The RA4000 Controller supports Wide-Ultra SCSI-3, Fast-Wide SCSI-2, or Fast SCSI-2 drives. Use of SCSI technology inside the RA4000 allows customers to use existing SCSI disk drives. Since hard disk drives are the most costly part of a storage system, this compatibility can reduce the cost of implementing an RA4000 Storage System. 0206-0699

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Compaq RAID Array 4000 Storage System: Deployment and Configuration
5
0206-0699
Fibre Channel Storage Hub 12
The Compaq Fibre Channel Storage Hub 12 is an intelligent, 12-port hub similar to the Fibre
Channel Storage Hub 7.
A Fibre Channel Storage Hub 12 is capable of supporting:
•
Up to 11 RA4000s per hub.
•
Up to 132 spindles per server slot.
•
Up to 3.2 TB per server slot.
•
Interconnect distances up to 500 meters per link using GBIC-SW.
•
Interconnect distances up to 10 kilometers per link using GBIC-LW.
RAID Array 4000
The RAID Array 4000 (RA4000) is an external drive enclosure containing a high-performance
RA4000 Controller, hot-pluggable hard disk drives, fan assembly, and power supplies.
The RA4000 allows you to simultaneously scale capacity, cache, and processing power. Each
RA4000 features optional hot-plug redundant power supplies and fans. This array supports dual
controllers, which provide controller failover redundancy. The RA4000 is available in tower or
4U rack form factors and supports eight 1.6-inch or twelve 1-inch hard disk drives for a total of
291.2 GB per enclosure using 36.4 GB drives.
The number of RA4000s that can be deployed in an RA4000 Storage System depends on the
number and configuration of the Fibre Channel Storage Hubs. The number and configuration of
the storage hubs depends on the number of Fibre Channel Host Adapters installed in the server.
Note:
The Compaq RA4000 is drive tray compatible with Compaq X86 Servers and ProLiant
Storage Systems (Wide Ultra SCSI-3 Hot Plug).
RA4000 Controller
The RA4000 Controller is an intelligent Fibre Channel-to-SCSI array controller integrated into
the RA4000. The controller is based on the Compaq Smart Array architecture and has two
Wide Ultra SCSI-3 channels. Each channel can transfer data at 40 megabytes per second for a
total of 80 megabytes per second possible internal bandwidth. The array controller-to-host
interface is Fibre Channel for high-speed connection to the server. The Fibre Channel interface
can transfer data to the server at burst rates of 100 megabytes per second.
The RA4000 Controller supports RAID levels 0, 0+1, 1, 4, and 5. It also supports multiple logical
drives with hot-swap capabilities and online capacity expansion within the array. The controller
features sixth-generation Compaq RAID technology and components and a total of 64 megabytes
of usable cache (16 megabytes read and 48 megabytes user-selectable read/write).
The RA4000 Controller supports Wide-Ultra SCSI-3, Fast-Wide SCSI-2, or Fast SCSI-2 drives.
Use of SCSI technology inside the RA4000 allows customers to use existing SCSI disk drives.
Since hard disk drives are the most costly part of a storage system, this compatibility can reduce
the cost of implementing an RA4000 Storage System.