Hitachi 9900 Series User Manual

Number of Cabinets

2-7

1

Maximum Cache Capacity

32 GB

16 GB

Number of Fibre Channel/ESCON

®

Ports 

Up to 32

Up to 24

Number of FICON Ports 

Up to 16

Up to 12

Number of Disks (HDDs)

Up to 512

Up to 48

Number of Array Groups

Up to 126

Up to 11

Number of ACP pairs

1-4

1

Number of FC-AL Paths to Back-end Disks

Up to 32

Up to 8

Maximum TB of Raw Disk Capacity

88 TB+

8 TB+

Minimum usable RAID-5 Capacity

54 GB

54 GB

Maximum usable RAID-5 Capacity

66.2 TB

6.2 TB

Selecting the 9910 or the 9960 is dependent on capacity requirements and expected

growth of data. The Lightning 9900

™

Series therefore offers product alternatives that cover

a very broad range of scalability as illustrated in Figure 1.   

The Lightning 9900

™

Series intelligent storage array is the most powerful enterprise

storage system in the industry today. The new architecture used in the Lightning 9900

™

Series is specifically designed for the brutal I/O demands of open systems environments.
Extremely high internal bandwidths, high-speed back-end design, scalable internal
pathways, increased processor speeds, and increased number of processors, larger cache sizes,
and a new and improved high-performance RAID-1 (called RAID-1+) sets the Lightning
9900

™

Series apart from all other storage systems. Figure 2 illustrates the architecture of the

Lightning 9900

™

Series.

2