IBM 46C9081 Datový list stáhnout pdf (Strana 4)

IBM High IOPS MLC Adapters 4

Technical specifications

Table 2 presents the technical specifications for the IBM High IOPS MLC Adapters.

Table 2. IBM High IOPS MLC Adapter technical specifications

Specification 365 GB 785 GB 1.2 TB 2.4 TB

Part number 46C9078 46C9081 90Y4377 90Y4397

Interface PCIe 2.0 x8

(x4-wired)

PCIe 2.0 x8

(x4-wired)

PCIe 2.0 x8

(x4-wired)

PCIe 2.0 x8

(x8-wired)

Form factor Low profile Low profile Low profile Full height, half

length

Capacity 365 GB 785 GB 1.2 TB 2.4 TB

Endurance Five-year life time

expectancy

(4 PB TBW)

Five-year life time

expectancy

(11 PB TBW)

Five-year life time

expectancy

(17 PB TBW)

Five-year life time

expectancy

(34 PB TBW)

Data reliability

< 1 in 10

bits read < 1 in 10

bits read

Sequential read IOPS* 415,000 443,000 445,000 892,000

Sequential write IOPS* 535,000 535,000 535,000 935,000

Random read IOPS* 137,000 141,000 143,000 285,000

Random write IOPS* 535,000 535,000 535,000 725,000

Sequential read rate† 910 MBps 1.5 GBps 1.5 GBps 3.0 GBps

Sequential write rate† 590 MBps 1.1. GBps 1.3 GBps 2.5 GBps

Read access latency 68 μs 68 μs 68 μs 68 μs

Write access latency 15 μs 15 μs 15 μs 15 μs

Power requirements 24 W 24 W 24 W 55 W

* 512 bytes block transfers

† 1 MB block transfers

The TBW value assigned to a solid-state device is the total bytes of written data (based on the number of

P/E cycles) that a device can be guaranteed to complete (the percentage of remaining P/E cycles is equal

to the percentage of remaining TBW). The IBM warranty for the solid-state storage is limited to devices

that have not reached the maximum guaranteed number of program/erase cycles. Solid-state storage that

reaches this limit might fail to operate according to its specifications. Because of such behavior by

solid-state devices, careful planning must be done to use solid-state storage in the application

environments to ensure that the TBW of the device is not exceeded before the end of the required life

expectancy.

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