HP 642 291967-B21 Fascicule
Codes de produits
291967-B21
Key Features for 64MB
BBWC (Battery-Backed
Write Cache) Enabler
BBWC (Battery-Backed
Write Cache) Enabler
Battery-backed Cache protects cached data in the event of a power outage, server failure or
controller failure.
72 hours of battery charge protects the data for an entire weekend.
3 years of battery life.
Modular, easy-to-upgrade design lets you optimize performance as needed with the 64MB BBWC
Enabler, from 64-MB of memory for RAID and read cache to 128-MB of memory for RAID, read
cache, and BBWC.
controller failure.
72 hours of battery charge protects the data for an entire weekend.
3 years of battery life.
Modular, easy-to-upgrade design lets you optimize performance as needed with the 64MB BBWC
Enabler, from 64-MB of memory for RAID and read cache to 128-MB of memory for RAID, read
cache, and BBWC.
Key Features for 128-MB
BBWC (Battery-Backed
Write Cache) Enabler
BBWC (Battery-Backed
Write Cache) Enabler
The 128MB BBWC Enabler is a transportable 128MB battery module increasing the total memory of the
controller to 192MB for RAID, read cache, and BBWC. The transportability of the battery memory
module protects the write cache data from unexpected power loss, system board failure, or controller
board failure. Data retained in the write cache will be protected for up to 72 hours, allowing time to
restore power, or transport the module to a functioning system board or array controller. The modular
design of the battery memory module is transportable between the Smart Array 641 and Smart Array 642
controllers.
controller to 192MB for RAID, read cache, and BBWC. The transportability of the battery memory
module protects the write cache data from unexpected power loss, system board failure, or controller
board failure. Data retained in the write cache will be protected for up to 72 hours, allowing time to
restore power, or transport the module to a functioning system board or array controller. The modular
design of the battery memory module is transportable between the Smart Array 641 and Smart Array 642
controllers.
128MB BBWC (Battery Backed Write Cache) Enabler allows the 642 controllers an option to add
transportable BBWC for improved controller performance and increases the total controller memory to
192MB.
transportable BBWC for improved controller performance and increases the total controller memory to
192MB.
Data Compatibility
Data compatibility among all models of Smart Array Controllers means customers can instantly upgrade
their Smart Array products to get to higher performance, capacity and availability. Unlike competitive
products, successive generations of Smart Array products understand the data format of other Smart Array
controllers, providing investment protection for your HP storage solution.
their Smart Array products to get to higher performance, capacity and availability. Unlike competitive
products, successive generations of Smart Array products understand the data format of other Smart Array
controllers, providing investment protection for your HP storage solution.
Performance
HP's High Performance Architecture sets new boundaries of industry performance expectations!
Ultra320 SCSI (320 MB/s bandwidth) per channel
High-performance 64-bit architecture
64-bit, 133-MHz PCI-X bus (1033 MB/s bandwidth)
High-performance 64-bit architecture
64-bit, 133-MHz PCI-X bus (1033 MB/s bandwidth)
Capacity
Given the internal server storage need for rapid capacity expansion, the SA-642 offers:
Dual SCSI channels support up to 20 (6 internal, 14 external) disk drives
Up to 6.0TB of storage per PCI slot
Up to 6.0TB of storage per PCI slot
Availability
Provides increased server uptime by providing advanced storage functionality:
Online RAID Level Migration (between any RAID level)
Online Capacity Expansion
Logical Drive Capacity Extension
Global Online Spare
Pre-Failure Warranty
Online Capacity Expansion
Logical Drive Capacity Extension
Global Online Spare
Pre-Failure Warranty
QuickSpecs
HP Smart Array 642 Controller
Standard Features
DA - 12069 Worldwide QuickSpecs — Version 16 — 9.15.2009
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