Datasheet

IBM Flash Adapters Enterprise Value for System x 4
Technical specifications
Table 2 presents the technical specifications for the IBM Flash Adapters Enterprise Value.
Table 2. IBM High IOPS MLC Adapter technical specifications
Specification 825 GB 1650 GB 3200 GB
Part number 00AE861 00AE864 00AE867
Interface PCIe 2.0 x4 PCIe 2.0 x4 PCIe 2.0 x8 (x4-wired)
Form factor Half height, half length Half height, half length Full height, half length
Capacity 825 GB 1650 GB 3200 GB
Endurance 4 PB TBW 8 PB TBW 20 PB TBW
Random read IOPS (512 bytes blocks) 135,000 144,000 115,000
Random write IOPS (512 bytes blocks) 535,000 535,000 535,000
Random read IOPS (4 KB blocks) 130,000 130,000 115,000
Random write IOPS (4 KB blocks) 235,000 235,000 243,000
Sequential read rate (1 MB blocks) 1.4 GBps 1.4 GBps 1.5 GBps
Sequential write rate (1 MB blocks) 1.1 GBps 1.1 GBps 1.3 GBps
Read access latency 77 μs 77 μs 92 μs
Write access latency 19 μs 19 μs 19 μs
Power requirements 25 W max 25 W max 25 W max
The TBW (total bytes written) 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.
Writes are tracked and reported by the adapter's management utility and might be affected by application
writes, data patterns, and maintenance designed to maximize data integrity.