Справочник Пользователя для HP 1.2TB MLC IOA QK763A
Модели
QK763A
Solid State Storage Technology can provide customer benefits in several different areas and with different architecture
implementations. It offers high performance and reliability with no moving parts, low power and cooling requirements and improved
environmental tolerance. Solid state storage technology has only recently become a popular topic in the market despite the fact that it
has been used in some enterprise applications for a number of years, especially where the workloads benefit significantly from very
low latency access, and application benefits exceed the costs associated with the solution.
implementations. It offers high performance and reliability with no moving parts, low power and cooling requirements and improved
environmental tolerance. Solid state storage technology has only recently become a popular topic in the market despite the fact that it
has been used in some enterprise applications for a number of years, especially where the workloads benefit significantly from very
low latency access, and application benefits exceed the costs associated with the solution.
Solid state storage technology benefits are best realized with latency-sensitive environments for both read- and write- intensive
workloads. In addition, significant operational cost savings can be seen by the customer when this technology is applied to the right
applications.
workloads. In addition, significant operational cost savings can be seen by the customer when this technology is applied to the right
applications.
Some use cases are:
Databases that historically were run in memory or across many disk spindles for performance reasons
Seismic data processing
Business Intelligence and Data mining
Real-time financial data processing and verification
Content caching for near-static data for file/web servers
3D animation/rendering
CAD/CAM
Virtual Desktop Infrastructure solution
Hypervisor running a large number of virtual machines
Seismic data processing
Business Intelligence and Data mining
Real-time financial data processing and verification
Content caching for near-static data for file/web servers
3D animation/rendering
CAD/CAM
Virtual Desktop Infrastructure solution
Hypervisor running a large number of virtual machines
Solid state technology can be implemented in various ways within a server. The two most common implementations are as an SSD (in
a SATA or SAS form factor) or as an I/O card attached to the PCI Express bus.
a SATA or SAS form factor) or as an I/O card attached to the PCI Express bus.
As an I/O card, the IO Accelerator is not a typical SSD; rather it is attached directly to the server's PCI Express fabric to offer extremely
low latency and high bandwidth. The card is also designed to offer high IOPs (I/O Operations Per Second) and nearly symmetric
read/write performance. The IO Accelerator uses a dedicated PCI Express x4 link with nearly 1.3GB/s of usable bandwidth. Each
mezzanine slot in the c-Class BladeSystem offers at least that amount of bandwidth, so by combining cards, you can easily scale the
storage to match your application's bandwidth needs.
low latency and high bandwidth. The card is also designed to offer high IOPs (I/O Operations Per Second) and nearly symmetric
read/write performance. The IO Accelerator uses a dedicated PCI Express x4 link with nearly 1.3GB/s of usable bandwidth. Each
mezzanine slot in the c-Class BladeSystem offers at least that amount of bandwidth, so by combining cards, you can easily scale the
storage to match your application's bandwidth needs.
The HP IO Accelerator's driver and firmware provide a block-storage interface to the operating system that can easily be used in the
place of legacy disk storage. The storage can be used as a raw disk device, or it can be partitioned and formatted with standard file
systems. You can also combine multiple cards on select models using OS RAID (up to 3 cards with a full-height c-Class blade server) for
increased reliability, capacity or performance in a single blade server.
place of legacy disk storage. The storage can be used as a raw disk device, or it can be partitioned and formatted with standard file
systems. You can also combine multiple cards on select models using OS RAID (up to 3 cards with a full-height c-Class blade server) for
increased reliability, capacity or performance in a single blade server.
A unique feature of the IO Accelerator is the ability for the customer to format it with a lower-than-stated capacity in order to achieve
even greater sustained write performance. For instance, a 320GB drive could be formatted as a 160GB drive using the low-level fio-
format tool. This will give improved write performance for some applications. Each customer's results may vary.
The HP IO Accelerator mezzanine card differs from other c-Class mezzanine cards in that it does not connect to any c-Class
Interconnect Module. This allows the use of the IO Accelerator in any open mezzanine slot in a c-Class chassis (in any Type-B slot in
Gen8 BladeServers) regardless of what types of Interconnect Modules might be installed.
even greater sustained write performance. For instance, a 320GB drive could be formatted as a 160GB drive using the low-level fio-
format tool. This will give improved write performance for some applications. Each customer's results may vary.
The HP IO Accelerator mezzanine card differs from other c-Class mezzanine cards in that it does not connect to any c-Class
Interconnect Module. This allows the use of the IO Accelerator in any open mezzanine slot in a c-Class chassis (in any Type-B slot in
Gen8 BladeServers) regardless of what types of Interconnect Modules might be installed.
The Remote Power Cut Module provides a higher level of protection in the event of a catastrophic power loss (for example, a user
accidentally pulls the wrong server blade out of the slot). The Remote Power Cut Module ensures in-flight writes are completed to
NAND flash in these catastrophic scenarios. Write performance will degrade without the remote power cut module. HP recommends
attaching the remote power cut module for the AJ878B and BK836A SKUs.
accidentally pulls the wrong server blade out of the slot). The Remote Power Cut Module ensures in-flight writes are completed to
NAND flash in these catastrophic scenarios. Write performance will degrade without the remote power cut module. HP recommends
attaching the remote power cut module for the AJ878B and BK836A SKUs.
NOTE: The Remote Power Cut Module is only available for the AJ878B and BK836A model. For QK761A, QK762A and QK763A models
the Power Cut Module is embedded on the board.
the Power Cut Module is embedded on the board.
QuickSpecs
HP IO Accelerator for HP BladeSystem c-Class
Benefits
DA - 13220 North America — Version 17 — April 12, 2013
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