Performance attributes

IO Accelerator capacity

320GB

640GB

Models AJ878B and

 

 

BK836A

 

 

 

 

 

NAND type

MLC (Multi Level Cell)

MLC (Multi Level Cell)

Read Bandwidth (64kB)

735 MB/s

750 MB/s

Write Bandwidth (64kB)

510 MB/s

550 MB/s

Read IOPS (512 Byte)

100,000

93,000

Write IOPS (512 Byte)

141,000

145,000

Mixed IOPS* (75/25 r/w)

67,000

74,000

Access Latency (512 Byte)

30 µs

30 µs

Bus Interface

PCI-Express x4

PCI-Express Gen1 x4

IO Accelerator capacity

785GB

1.2TB

Models QK762A and

 

 

QK763A

 

 

 

 

 

NAND type

MLC (Multi Level Cell)

MLC (Multi Level Cell)

Read Bandwidth (1MB)

1.5 GB/s

1.5 GB/s

Write Bandwidth (1MB)

1.1 GB/s

1.3 GB/s

Read IOPS (Seq. 512 Byte)

443,000

443,000

Write IOPS (Seq. 512 Byte)

530,000

530,000

 

 

 

Read IOPS (Rand. 512 Byte)

141,000

143,000

Write IOPS (Rand. 512 Byte)

475,000

475,000

Read Access Latency

68µs

68µs

Write Access Latency

15µs

15µs

Bus Interface

PCI-Express Gen2 x4

PCI-Express Gen2 x4

*Performance achieved using multiprocessor enterprise server

Enterprise data integrity

Field upgradeability

Green footprint, 7.5W nominal per device

NOTE: MSI was disabled to obtain these statistics.

Required operating environment

The HP IO Accelerator is supported for use in the following operating environments:

VMware ESX 4.0

VMware ESX 4.1

VMware ESXi 4.1

Introduction 7