Specifications - IBM High IOPS SSD PCIe Adapters At-A-Glance Manual

Specifications

The IBM High IOPS SSD PCIe Adapters have the following specifications:
Storage capacity from 160 GB to 1.28 TB

Functions as a PCIe storage and controller device -- operating system sees a block device

PCI Express host interface as listed in Table 2

Note: These adapters cannot be used as bootable devices.
Table 2. PCI Express host interface specification
Description
IBM 160GB High IOPS SS Class SSD PCIe Adapter
IBM 320GB High IOPS MS Class SSD PCIe Adapter
IBM 320GB High IOPS SD Class SSD PCIe Adapter
320GB High IOPS SLC Adapter for IBM System x
640GB High IOPS MLC Adapter for IBM System x
640GB High IOPS MLC Duo Adapter for IBM System x
640GB High IOPS SLC Duo Adapter for IBM System x
1.28TB High IOPS MLC Duo Adapter for IBM System x
Comparison
Table 3 shows a comparison between the High IOPS SSD PCIe Adapters and solid-state drives.
Table 3. Comparison
Model 160 320
SLC MLC
Part number 46M0877 46M0898
Capacity 160 GB 320 GB
Max IOPS 129K 128K
4KB Read
Max IOPS 130K 108K
4KB Write
Max transfer 754 735
Read MBps MBps
Max transfer 635 476
Write MBps MBps
IBM High IOPS SSD PCIe Adapters
High IOPS SSD PCIe Adapters
320 320 640
SLC SLC MLC
Duo
81Y4535 46M0878 81Y4531
320 GB 320 GB 640 GB
189K 301K 129K
154K 110K 136K
787 1524 763
MBps MBps MBps
769 1129 543
MBps MBps MBps
Part number
46M0877
46M0898
46M0878
81Y4535
81Y4531
81Y4519
81Y4539
81Y4527
640 640 1.28
MLC SLC MLC
Duo Duo
81Y4519 81Y4539 81Y4527
640 GB 640 GB 1.28 TB
301K 358K 316K
109K 374K 277K
1703 1538 1511
MBps MBps MBps
961 1047 818
MBps MBps MBps
PCIe interface
PCIe 1.0a (Gen1) x4
PCIe 1.0a (Gen1) x4
PCIe 2.0 (Gen2) x8
PCIe 1.0a (Gen1) x4
PCIe 1.1 (Gen1) x4
PCIe 2.0 (Gen2) x8
PCIe 2.0 (Gen2) x8
PCIe 2.0 (Gen2) x8
Solid-state drive
eXFlash eXFlash
1.8" 50GB 1.8" 200GB
MLC MLC
(8 drives) (8 drives)
43W7726 43W7746
400 GB 1.6 TB
Non-RAID: 203K
RAID 5: 121K
Non-RAID: 140K
RAID 5: 22K
Non-RAID: 2052 MBps
RAID 5: 1668 MBps
Non-RAID: 1864 MBps
RAID 5: 1141 MBps
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