Technical specifications

Models

9846/9848 AC3 controllers
9846/9848 AE3 flash enclosure drawers

System size

Minimum
(1 x AE3 and 2 x AC3)

Maximum scaled-out system
(8 x AE3 and 8 x AC3)

Flash type

IBM-enhanced 3D TLC

Flash module configuration

For each AE3: 6, 8, 10 or 12 3.6 terabyte (TB) modules; or 8, 10 or 12 8.5 TB modules; or 8, 10 or 12 18 TB modules

Up to 8 AE3 expansions; up to 4 AC3 pairs

Maximum internal flash capacity

  • 43 TB to 219 TB (effective, assuming 2.5:1 or better hardware compression)
  • 900 TB (effective, assuming 5:1 data reduction)
  • Up to 1.7 PB (effective, assuming 2.5:1 or better hardware compression)
  • 7.2 PB (effective, assuming 5:1 data reduction)

Maximum external storage capacity

External virtualisation: Up to 32 PB usable capacity

Maximum performance (100% read, cache miss)

Minimum latency (4K)

180 µs

180 µs

IOPS (4K) with h/w compression

1,300,000

5,200,000

Bandwidth (256K)

20 GB/s

80 GB/s

reliability, availability, serviceability (RAS) features

Two-dimensional flash RAID

  • Module-level Variable Stripe RAID
  • System-level RAID 5 across modules

Hot-swappable flash modules
Tool-less module installation/replacement
Concurrent code load
Redundant and hot-swappable components

Encryption

Data-at-rest AES-XTS 256

Host connectivity options per building block

16 x 16/8/4 gigabit (Gb) Fibre Channel (FC)
8 x 10 Gb Fibre Channel over Ethernet (FCoE)
8 x 10 Gb Internet small computer system interface (iSCSI)

64 x 16/8/4 Gb FC
32 x 10 Gb FCoE
32 x 10 Gb iSCSI

Virtualisation software model

5639-RB8

Tiered solution models

9846/9848 12F, 24F and 92F serial attached SCSI (SAS) expansion drawers, with each drawer adding up to a further 1.3 PB of storage

Controller CPU

Four Intel Xeon E5 v4 Series 8-core 3.2 gigahertz (GHz) processors

16 Intel Xeon E5 v4 Series 8-core 3.2 GHz processors

Controller memory

128 GB standard, up to 512 GB

512 GB standard, up to 2,048 GB

Dimensions (height x width x depth)

6U in a standard 19 in. rack
288 mm x 445 mm x 801 mm

4 x 6U blocks in a standard 19 in. rack
1,066 mm x 445 mm x 801 mm
Additional AE2 units add 2U or 44.5 mm in height

Weight

82 kg (181 lb) fully loaded

Up to 736 kg (1623 lb) fully loaded

See how it works

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