HP IO Accelerator for BladeSystem c-Class Windows User Manual Page 8

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Introduction 8
QK762A: HP 785GB IO MLC Accelerator for BladeSystem c-Class
QK763A: HP 1.2 TB IO MLC Accelerator for BladeSystem c-Class
IMPORTANT: Generation 2 IO accelerators for BladeSystem c-Class are only compatible with
Gen8 and later server blades.
673642-B21: HP 365GB Multi Level Cell G2 PCIe ioDrive2 for ProLiant Servers
673644-B21: HP 785GB Multi Level Cell G2 PCIe ioDrive2 for ProLiant Servers
673646-B21: HP 1205GB Multi Level Cell G2 PCIe ioDrive2 for ProLiant Servers
673648-B21: HP 2410GB Multi Level Cell G2 PCIe ioDrive2 Duo for ProLiant Servers
721458-B21: HP 3.0TB Multi Level Cell G2 PCIe ioDrive2 for ProLiant Servers
Performance attributes
IO Accelerator capacity
Models AJ878B and
BK836A
320GB 640GB
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
Models QK762A and
QK763A
785GB 1.2TB
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
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