Справочник Пользователя для IBM Flex System V7000 Expansion Enclosure 4939H29
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4939H29
8068ch06-Volumes.fm
Draft Document for Review January 29, 2013 12:52 pm
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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
6.1.5 IBM Real-time Compression
IBM Flex System V7000 version 6.4 (or higher) has the capability of compressing volumes
and this is called IBM Real-time Compression. This reduces disk capacity required to store
data by up to 80%, helping improve efficiency and control storage costs.
and this is called IBM Real-time Compression. This reduces disk capacity required to store
data by up to 80%, helping improve efficiency and control storage costs.
The IBM Real-time Compression solution addresses the requirement for reducing IT costs by
reducing the amount of physical capacity required and by reducing the required floorspace,
power and cooling. Implementing Real-time Compression in IBM Flex System V7000 Storage
Node provides the following benefits:
reducing the amount of physical capacity required and by reducing the required floorspace,
power and cooling. Implementing Real-time Compression in IBM Flex System V7000 Storage
Node provides the following benefits:
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Compression for active primary data:
IBM Real-time Compression can be used with active primary data, therefore it supports
workloads which are not candidates for compression in other solutions. The solution
supports online compression of existing data and allows storage administrators to gain
back free disk space in the existing storage system without enforcing administrators and
users to clean up or archive data. This significantly enhances the value of existing storage
assets and the benefits to the business are immediate. Capital expense of upgrading or
expanding the storage system is delayed.
workloads which are not candidates for compression in other solutions. The solution
supports online compression of existing data and allows storage administrators to gain
back free disk space in the existing storage system without enforcing administrators and
users to clean up or archive data. This significantly enhances the value of existing storage
assets and the benefits to the business are immediate. Capital expense of upgrading or
expanding the storage system is delayed.
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Compression for replicated/mirrored data:
Remote volume copies can be compressed in addition to the volumes at the primary
storage tier. This reduces storage requirements in Metro Mirror and Global Mirror
destination volumes as well.
storage tier. This reduces storage requirements in Metro Mirror and Global Mirror
destination volumes as well.
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No changes to the existing environment are required:
IBM Real-time Compression is an integral part of the storage system, and was designed
with transparency in mind so that it can be implemented without changes to applications,
Creating a Compressed Volume
with transparency in mind so that it can be implemented without changes to applications,
Creating a Compressed Volume
Creating a compressed volume
To create a Compressed volume, complete the following steps:
1. Click New Volume and select Compressed as shown in Figure 6-19.
Figure 6-19 Compressed Volume - select a pool
Note that a warning is given that creating a compressed volume may affect performance of
existing volumes. Hence creating compressed volumes may require some planning in case
existing volumes. Hence creating compressed volumes may require some planning in case