What is an IO
What is an IOWhat is an IO
What is an IO
Accelerator?
Accelerator?Accelerator?
Accelerator?
The IO Accelerator is an advanced storage device that uses solid state storage technology directly on the
PCI bus, assuring high read and write data rates and accelerated application performance. The
associated application performance improvements will have a positive impact on business results and the
ability to make decisions quickly, resulting in significant cost and time savings.
Single Level Cell and
Single Level Cell andSingle Level Cell and
Single Level Cell and
Multilevel Cell
Multilevel CellMultilevel Cell
Multilevel Cell
NAND technology uses flash memory cells to store data. Single level Cell (SLC) stores one bit per cell,
while Multi-level Cell (MLC) uses two bits per cell. While MLC can store more data within each device, it
has lower endurance characteristics than SLC.
IO and Read/Write
IO and Read/WriteIO and Read/Write
IO and Read/Write
Performance
PerformancePerformance
Performance
HP PCIe IO Accelerator products offer superior IO performance (over 100,000 IOPs on certain
products), and high read (up to 700MB/s) and write (up to 600 MB/s) performance with SLC models.
Latency
LatencyLatency
Latency
HP PCIe IO Accelerator offers very low latency access to data (as low as 50 microseconds to read a 4K
block on SLC based products and 80 microseconds for MLC based products), in other words a virtually
zero seek time compared to rotating magnetic media.
RAM Requirements
RAM RequirementsRAM Requirements
RAM Requirements
The amount of free RAM required by the driver depends on the size of the blocks used when writing to the
drive. The smaller the blocks, the more RAM required. Here are the guidelines for each 80GB of storage:
Average
Block Size (bytes)
System RAM usage (Megabytes)
per 80GB of storage for Driver
version 2.x
System RAM usage (Megabytes)
per 80GB of storage for Driver
version 1.2.x
8,192
225MB 400MB
4,096 (most common)
425MB 800MB
2,048
825MB
1,500MB
1,024
1,600MB 2,900MB
512
3,175MB 5,600MB
Manageability
ManageabilityManageability
Manageability
Command Line (CLI) tools for both Linux and Windows to configure, monitor, and upgrade firmware
SNMP Agent and System Management Homepage provided for Linux and Windows
ioManager GUI for Windows and Linux
PCI IDs
PCI IDsPCI IDs
PCI IDs
Vendor & Device ID 1AED:1005; Subsystem Vendor & Device ID 103C:324E
Upgradeability
UpgradeabilityUpgradeability
Upgradeability
The IO Accelerator's controller can be upgraded in the future with new firmware. Online firmware update
tools are available for all supported operating systems.
Wear-leveling
Wear-levelingWear-leveling
Wear-leveling
NAND Flash devices use semiconductor technology that has a finite number of data that can be written
to the device, defined as the Maximum Lifetime. Projected lifetime of the NAND storage due to wear-out
varies with type of NAND and amount of writes to the device. For SLC 11 years at 2.5TB/day writes duty
cycle. MLC 6 years at 250GB/day writes duty cycle
QuickSpecs
HP PCIe IO Accelerators for ProLiant Servers
HP PCIe IO Accelerators for ProLiant ServersHP PCIe IO Accelerators for ProLiant Servers
HP PCIe IO Accelerators for ProLiant Servers
Standard Features
DA - 13587 Worldwide — Version 13 — August 31, 2011
Page 3
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