Hitachi Virtual Storage Platform, Руководство пользователя и справочник

Страница: 19 / 146

Introduction
1–7
Hitachi VSP User and Reference Guide
chassis. Different chassis are required for the 2-1/2 inch data drives, 3-
1/2 inch, and 5-1/2 inch flash module drives. See Table 1-2 Drive
Specifications on page 1-11 for details.
• The maximum configuration is a six-rack twin version of the above
that contains two controller chassis and up to 16 drive chassis containing
up to 2048 2-1/2 inch disk drives or 1280 3-1/2 inch disk drives. The
total storage space of this configuration is 2-1/2 PB. A six-rack system
can contain a maximum of 192 1.6 TB flash module, with a maximum
capacity of 307.2 TB.
In addition to the number of disk drives, the system can be configured with
disk drives of different capacities and speeds, varying numbers of FEDs and
BEDs, and varying cache capacities, as follows:
• Two to six FEDs (each is a pair of boards). This provides a total of 12
when all of the FED slots are used and there are no BEDs installed, as in
a diskless system. The maximum total number of FEDs and BEDs is 12.
• Two to four BEDs (each is a pair of boards). This provides a total of 8
when all of the BED slots are used. In this case only two FEDs can be
installed.
• Cache memory capacity: 512 GB per module / 3-rack system, and 1TB
per two modules / 6-rack system)
• HDD (disk) drives with capacities of 146 GB, 300 GB, 600 GB, 900 GB,
2 TB and 3TB.
• Flash drive capacities of 200 GB and 400 GB
• Flash modules with a capacity of 1.6 TB and 3.2 TB
• Channel ports: 80 for one module, 176 for two modules.
High performance
The Virtual Storage Platform includes several new features that improve the
performance over previous models. These include:
Figure 1-5 Example Virtual Storage Platform storage system
Configurations