Справочник Пользователя для IBM Flex System V7000 Expansion Enclosure 4939H29

Chapter 2. Introduction to IBM Flex System V7000 Storage Node 

Draft Document for Review January 29, 2013 12:52 pm

Figure 2-1 shows a representation of the IBM virtual storage environment.

The IBM Flex System V7000 Storage Node introduces some new terminology, which is 
defined below in Table 2-1. We also include the terms first introduced with the IBM SVC and 
the IBM Storwize V7000, and are important to understand the rest of the implementation 
procedures discussed in this publication.

Chain

The SAS2 connections by which expansion enclosures are attached which 
provides redundant access to the drives that are inside the enclosures. Each 
IBM Flex System V7000 Storage Node control canister has one chain 
connection. 

Clone

A copy of a volume on a server at a particular point in time. The contents of 
the copy can be customized while the contents of the original volume are 
preserved.

Control canister

A hardware unit that includes all the management and control hardware, 
fabric and service interfaces, and the SAS2 expansion port. 

Control enclosure

A hardware unit chassis that inserts into the IBM Flex System that includes 
control canisters including backup batteries, and 24 drive slots. This is the 
initial building block for the IBM Flex System V7000 Storage Node.