IBM Flex System V7000 Expansion Enclosure 4939H29 ユーザーズマニュアル

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

IBM Flex System V7000 Storage Node Introduction and Implementation Guide

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Data Migration (no charge for temporary usage)

IBM Flex System V7000 Storage Node provides a data migration function that can be 
used to import external storage systems into the IBM Flex System V7000 Storage Node 
system.

It allows you to:

– Move volumes non disruptively onto a newly installed storage system

– Move volumes to rebalance a changed workload

– Migrate data from other back-end storage to IBM Flex System V7000 Storage Node 

managed storage 

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IBM System Storage Easy Tier (no charge)

Provides a mechanism to seamlessly migrate hot spots to the most appropriate tier within 
the IBM Flex System V7000 Storage Node solution. This migration could be to internal 
drives within IBM Flex System V7000 Storage Node or to external storage systems that 
are virtualized by IBM Flex System V7000 Storage Node. 

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Real-time Compression (RTC)

Provides for data compression using the IBM Random-Access Compression Engine 
(RACE) which can be performed on a per volume basis in real time on active primary 
workloads. RTC can provide as much as a 50% compression rate for data that is not 
already compressed. This can help with reducing the amount of capacity needed for 
storage which can help with delaying further growth purchases. RTC supports all storage 
that is attached to the IBM Flex System V7000 Storage Node whether internal, external, or 
external virtualized storage. 

A compression evaluation tool called the IBM Comprestimator can be used to determine 
the value of using compression on a specific workload for your environment.

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External Storage Virtualization (Licensed per enclosure of the external storage 
subsystem)

With this feature an external storage subsystem can be attached through the fiber channel 
or by FCoE to the IBM Flex System V7000 Storage Node. These devices cannot be 
presented through an iSCSI connection. The devices presented are treated as mdisks and 
can be mapped to storage pools for volume creation and management. Once the storage 
from the external system is integrated into the IBM Flex System V7000 Storage Node and 
added to a storage pool it is available to be virtualized and used by any of the features and 
functions of the IBM Flex System V7000 Storage Node.

IBM Flex System V7000 Storage Node might require the following licenses:

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Enclosure

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External Virtualization

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Remote Copy (Advanced Copy Services: Metro Mirror / Global Mirror)

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Real-time Compression (RTC)

Table 2-2 on page 47 gives a summary of all the licenses that might be required.

External virtualization: External Virtualization is supported only on FC and FCoE but 
not iSCSI.